United States v. Xiulu Ruan ( 2020 )


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  •                Case: 17-12653       Date Filed: 07/10/2020      Page: 1 of 137
    [PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________
    No. 17-12653
    ________________________
    D.C. Docket No. 1:15-cr-00088-CG-B-2
    UNITED STATES OF AMERICA,
    Plaintiff - Appellee,
    versus
    XIULU RUAN,
    JOHN PATRICK COUCH,
    Defendants - Appellants.
    ________________________
    Appeals from the United States District Court
    for the Southern District of Alabama
    ________________________
    (July 10, 2020)
    Before WILSON and NEWSOM, Circuit Judges, and COOGLER, * District Judge.
    COOGLER, District Judge:
    *
    Honorable L. Scott Coogler, United States District Judge for the Northern District of
    Alabama, sitting by designation.
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    Following a seven-week trial in the United States District Court for the
    Southern District of Alabama, pain management physicians Xiulu Ruan (“Ruan”)
    and John Patrick Couch (“Couch”) (together, “the appellants”) were convicted by a
    jury of conspiring to run a medical practice constituting a racketeering enterprise in
    violation of the Racketeer Influenced and Corrupt Organizations Act (“RICO”), 18
    U.S.C. § 1962(d); conspiring to violate the Controlled Substances Act, 21 U.S.C.
    §§ 846 & 841(a)(1), by dispensing Schedule II drugs, fentanyl, and Schedule III
    drugs outside the usual course of professional practice and without a legitimate
    medical purpose; conspiracies to commit health care fraud and mail or wire fraud
    in violation of 18 U.S.C. §§ 1347(a) & 1349; and conspiracies to receive kickbacks
    in relation to a Federal health care program in violation of 18 U.S.C. § 371 and 42
    U.S.C. § 1320a-7b(b). In addition, Ruan and Couch were individually convicted of
    multiple counts of substantive drug distribution in violation of the Controlled
    Substances Act, 21 U.S.C. § 841(a)(1). Ruan was further convicted of a money
    laundering conspiracy in violation of 18 U.S.C. § 1956(h) and two counts of
    substantive money laundering in violation of 18 U.S.C. § 1957. Ruan was
    sentenced to 252 months’ imprisonment, to be followed by four years of
    supervised release, and ordered to pay over $15 million in restitution. Couch was
    sentenced to 240 months’ imprisonment, followed by four years of supervised
    release, and ordered to pay over $16 million in restitution.
    2
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    In this broad-sweeping appeal, Ruan and Couch challenge their convictions,
    various evidentiary rulings at trial, and the district court’s jury instructions. Ruan
    also challenges his sentence and the district court’s order of restitution. After
    thorough review and having had the benefit of oral argument, we affirm in large
    part the decisions of the district court, but we reverse the district court’s ruling that
    sufficient evidence supported one of the illegal kickback conspiracy convictions.
    We thus remand the cases for resentencing.
    I.    Background
    A.     Procedural History
    A Southern District of Alabama grand jury indicted Ruan and Couch on
    April 30, 2015, charging conspiracy to distribute controlled substances, 21 U.S.C.
    § 846, and conspiracy to commit health care fraud, 18 U.S.C. § 1347(a). After a
    raid of their medical clinic and pharmacy by the Federal Bureau of Investigation
    (“FBI”), a Superseding Indictment issued on April 28, 2016, charging 22 counts.
    The Superseding Indictment alleged that Ruan and Couch’s medical clinic was
    essentially a “pill mill,” which prescribed controlled substances for no legitimate
    medical purpose or outside the usual course of professional practice. Ruan and
    Couch were both charged with one count of conspiracy to commit racketeering, 18
    U.S.C. § 1962(d) (Count 1); three counts of conspiracies to violate the Controlled
    Substances Act by dispensing Schedule II and III controlled substances and
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    fentanyl outside the usual course of professional practice and without a legitimate
    medical purpose, 21 U.S.C. §§ 841(a)(1) & 846 (Counts 2–4); one count of
    conspiracy to commit health care fraud, 18 U.S.C. § 1347(a) (Count 15); three
    counts of conspiracy to violate the Anti-Kickback statute, 18 U.S.C. § 371 (Counts
    16–18); and one count of conspiracy to commit wire and mail fraud, 18 U.S.C. §
    1349 (Count 19). Couch was charged with five additional counts of illegal drug
    distribution involving prescribing controlled substances to named individuals, 18
    U.S.C. § 2(a) and 21 U.S.C. § 841(a)(1) (Counts 5–7 and 13–14). Ruan was
    charged with five additional counts of illegal drug distribution involving
    prescribing controlled substances to named individuals, 21 U.S.C. § 841(a)(1)
    (Counts 8–12), and three counts of conspiracy to commit money laundering and
    substantive money laundering, 18 U.S.C. §§ 1956(h) & 1957 (Counts 20–22). The
    Superseding Indictment also contained numerous forfeiture provisions.
    Ruan and Couch pled not guilty. Their joint trial commenced in Mobile,
    Alabama, on January 6, 2017, and lasted 31 days. The government called more
    than 50 witnesses, including 15 of their former patients or their relatives; 12 of
    their former staff members, including nurse practitioners with whom they had
    worked closely; four pharmaceutical company employees; seven representatives
    from various medical insurance companies; three medical experts; the director of
    the Alabama Department of Public Health; and 12 law enforcement agents and
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    analysts. The government also introduced numerous charts from insurers and the
    Drug Enforcement Administration (“DEA”) reflecting the volume and cost to
    insurers of prescriptions for controlled substances that Ruan and Couch had
    written, compared to other physicians in Alabama and nationally. Both Ruan and
    Couch testified in their defense, and they also called five former patients, 11
    additional former employees, and three medical experts of their own. The
    government dismissed Count 18 at the close of its case. Ruan and Couch moved
    for judgments of acquittal under Federal Rule of Criminal Procedure 29 at the
    close of the government’s case, and again at the close of all the evidence, and the
    district court denied their motions.
    On February 23, 2017, the jury convicted Couch on all counts against him.
    Ruan was acquitted on Count 10 but convicted on all other counts. Ruan and
    Couch renewed their motions for judgment of acquittal or new trial, and the district
    court denied the motions.
    On May 25 and 26, 2017, the district court imposed below-guidelines
    sentences of 252 (Ruan) and 240 (Couch) months of imprisonment, each to be
    followed by four years of supervised release. Ruan was ordered to pay
    $15,239,369.93 in restitution and Couch $16,844,569.03. Ruan and Couch are
    currently incarcerated. This appeal followed. 1
    1
    As necessary, additional procedural details are set forth with each issue below.
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    B.      Trial Evidence2
    1.     The Appellants’ Clinic and Pharmacy
    The appellants were board-certified doctors specializing in pain
    management. They co-owned a medical clinic, Physicians Pain Specialists of
    Alabama (“PPSA”), and a pharmacy, C&R Pharmacy (“C&R”). PPSA had two
    locations in Mobile, Alabama, one on Springhill Avenue and one on Airport
    Boulevard. C&R was connected to PPSA’s Airport Boulevard location, and its sole
    business was dispensing drugs prescribed at PPSA. The Springhill office contained
    an in-office dispensary for workers’ compensation patients. Ruan worked primarily
    at the Airport location and Couch primarily at Springhill, but once a week they
    would switch locations. In May 2015, when an FBI raid shut down PPSA and
    C&R, they had 57 employees and served over 8,000 patients.
    The appellants’ medical practice was lucrative. From January 2011 to May
    2015, the period covered by the Superseding Indictment, Couch made over $3.7
    million from PPSA, and Ruan made over $3.9 million. C&R received a service fee
    for each prescription it filled—more than 70,000 during those years—netting Ruan
    and Couch each more than $555,000 from their pharmacy.
    2.     The Controlled Substances Act
    2
    Because the appellants challenge the sufficiency of the evidence against them at trial, the
    following facts have been established by viewing the evidence presented at trial in the light most
    favorable to the government. See United States v. Schlei, 
    122 F.3d 944
    , 952 (11th Cir. 1997).
    6
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    On the first day of trial government witnesses told the jury that the
    Controlled Substances Act categorizes controlled substances into five schedules,
    based on their abuse potential and medical value. The Act makes it a crime for
    anyone to, among other things, dispense a controlled substance, with the exception
    that licensed health care professionals may dispense Schedule II, III, and IV
    controlled substances with a prescription. See 21 U.S.C. §§ 841(a)(1), 828.
    However, such prescriptions are only lawful if they are issued for a legitimate
    medical purpose in the usual course of the licensed health care professional’s
    professional practice. See 21 C.F.R. § 1306.04.
    From January 2011 to May 2015, the appellants wrote nearly 300,000
    prescriptions for controlled substances, over half of which were Schedule II drugs.
    Schedule II drugs are the most powerful and dangerous drugs that can be lawfully
    prescribed, and they include many pharmaceutical opioids such as fentanyl,
    hydrocodone, morphine, oxycodone, methadone, hydromorphone, and
    oxymorphone. Opioids are dangerous because, while they can help mask pain,
    their use can create physical and psychological dependence that can lead to
    addiction. Side effects from opioid use include lethargy, confusion, falls, and
    depressed breathing.
    Opioids can be particularly dangerous when combined with two Schedule IV
    controlled substances: benzodiazepines and carisoprodol. Benzodiazepines, such as
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    Xanax and Valium, are psychoactive drugs that treat a wide range of conditions
    including insomnia or anxiety. Carisoprodol is a muscle relaxant marketed under
    the brand name Soma. The combination of these three types of drugs—which the
    government referred to as the “Holy Trinity” at trial—is popular among substance
    abusers because of its euphoric effect, yet it is highly addictive and can increase
    the chances of the user’s death. Together, the appellants prescribed nearly 12.5
    million units of Schedule II opioids, and opioid prescriptions accounted for nearly
    75% of their total controlled-substance prescriptions. Most of the rest of their
    controlled-substance prescriptions were for benzodiazepines and Soma, the other
    components of the “Holy Trinity.”
    3.     Ruan and Couch Prescribed Millions of Doses of Opioids
    Based on Their Financial Interests
    The government sought to prove that Ruan and Couch prescribed millions of
    doses of opioids and other controlled substances outside the usual course of
    professional practice and, thus, illegally. Over Ruan and Couch’s objection, the
    government used Alabama’s Prescription Database Monitoring Program
    (“PDMP”), a database of all controlled substance prescriptions dispensed statewide
    that is available to doctors and other health personnel, to pull Ruan and Couch’s
    prescribing data. The government focused especially on Ruan and Couch’s
    frequent prescribing of a version of fentanyl called transmucosal immediate-release
    fentanyl (“TIRF”), which the Food and Drug Administration (“FDA”) had
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    approved in 2011 to treat “breakthrough pain in adult cancer patients who are
    already receiving and who are tolerant to around-the-clock opioid therapy.” The
    two types of TIRFs that Ruan and Couch prescribed were Subsys, manufactured by
    Insys Therapeutics (“Insys”), and Abstral, manufactured by Galena Biopharma
    (“Galena”). Subsys is an under-the-tongue oral spray, and Abstral is an under-the-
    tongue dissolving tablet, but both penetrate the blood-brain barrier more quickly
    than medications absorbed digestively, working in five minutes compared to 45
    minutes for most other opioids. Not surprisingly, TIRFs are expensive, with
    average doses costing anywhere from $3,000 to over $20,000 per month. And
    although it is not illegal for a doctor to prescribe TIRFs “off-label” to patients who
    do not have cancer, insurers would usually only pay for on-label uses of TIRFs.
    From January 2011 to May 2015, Ruan and Couch prescribed more than 475,000
    doses of TIRFs to over 1,000 patients. From 2012 to 2014, they sharply increased
    both the number of patients receiving TIRF prescriptions and the dosages
    prescribed. This practice placed the appellants among the top TIRF prescribers
    nationwide: they often surpassed the next highest prescriber by more than double.
    Despite these high numbers of TIRF prescriptions, no more than 15% of PPSA
    patients had cancer.3
    3
    For each doctor, the government used prescription records to identify the 25 patients
    receiving the most Abstral and Subsys prescriptions. Comparing those lists to PPSA’s medical
    records showed that more than half of those patients—14 on each list—did not have cancer and
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    One of the ways in which the government sought to prove that Ruan and
    Couch’s prescribing of Abstral and Subsys deviated from the usual course of
    professional practice was that their prescribing habits tracked financial incentives
    rather than their patients’ medical needs. One of the government’s medical experts,
    Dr. Tricia Aultman (“Dr. Aultman”), testified that prescribing drugs based on
    one’s own financial interest is outside the usual course of professional practice.
    i.      The Appellants’ Investments in Galena Stock
    A DEA agent created a line chart showing the micrograms 4 of Abstral
    prescribed by Ruan and Couch each month from January 2011 to May 2015. Ruan
    and Couch prescribed very little Abstral until late 2013—the most Couch
    prescribed was 76,800 mcg one month, and some months he did not prescribe any,
    and Ruan’s prescriptions maxed out at 128,000 mcg per month. However, in April
    2013, Galena initiated a study to gather data on how Abstral was working on
    patients. As former Galena sales representative David Corin (“Corin”) testified,
    Galena offered doctors $500 per patient to enroll in the study but limited it to 25
    patients per doctor. Couch negotiated with Galena for an exception to enroll up to
    75 of his patients for a fee of $2,500 per patient. Immediately after Galena
    were thus receiving TIRFs off-label. For those 28 patients, insurers paid more than $5.5 million
    for Abstral and Subsys during the time covered by the Superseding Indictment.
    4
    Fentanyl is so powerful that, unlike other opioids, it is measured in micrograms (one
    millionth of a gram) (“mcg”), not milligrams (“mg”).
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    approved that arrangement, Couch began prescribing over 1.5 million mcg of
    Abstral per month.
    Similarly, in September 2013, Ruan prescribed only 25,600 mcg of Abstral.
    But in October 2013, his prescriptions rose to 192,000 mcg. Around that time, a
    Galena sales representative visited PPSA in Mobile. Shortly thereafter, Couch and
    Ruan began purchasing Galena stock. Between November 2013 and January 2014,
    they purchased more than $1.3 million of stock, both individually and through
    PPSA. In a February 2, 2014, email to Couch, Ruan wrote that they could “play a
    big role” in increasing the value of Galena stock. A few day later Ruan emailed
    another doctor, writing that although he had never purchased stock before, he
    decided to invest in Galena to help “generate enough profit to pay for [his] divorce
    settlement.” And in a February 17, 2014, email between Ruan and a colleague,
    Ruan indicated that he suspected Galena would have a “substantial market share
    growth at the end of March.” Ruan’s prescribing of Abstral greatly increased
    during this time. For example, in January 2014, Ruan prescribed over 1.4 million
    mcg; in February he prescribed over 2.3 million mcg; and in March his
    prescriptions rose to over 2.6 million mcg. Galena’s stock price increased
    dramatically from October 2013 to the start of 2014, more than tripling in price.
    However, Corin testified that in January 2014, members of Galena’s board
    of directors were given a “blackout period” in which they were briefly permitted to
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    sell their stock; they did so—“millions of dollars’ worth”—and the price “dropped
    dramatically.” Ruan and Couch “were very upset,” and a Galena representative
    flew to Mobile in February 2014 to calm them down because they were “important
    individuals for Galena” and the company’s “highest Abstral prescribers.” Ruan and
    Couch demanded that Galena fire its CEO and board. Between March and October
    2014, their Abstral prescribing plummeted. Ruan reached a low of 624,000 mcg in
    August 2014, but that month, Galena fired its CEO, and in November, the new
    CEO came to Mobile to meet Ruan and Couch at Ruan’s demand. After that visit,
    their Abstral prescriptions again spiked, with Couch prescribing over 2 million
    mcg and Ruan prescribing over 1.8 million mcg in November. A similar dip in
    Ruan and Couch’s Abstral prescribing in February 2015 matched a significant dip
    in Galena’s stock price in February 2015, followed by another visit by the CEO to
    Mobile, and a rebound in Ruan and Couch’s prescribing.
    Corin also explained that Galena initiated a voucher program in August
    2013, where patients could receive up to three vouchers for 32 tablets of Abstral.
    Because TIRFs were so expensive, the purpose of the program was to help patients
    afford the drugs while they awaited insurance approval and to allow doctors to
    titrate patients onto the medication, with one voucher being issued at a time until
    an appropriate dose was found for a full prescription. However, Ruan and Couch
    would use all three prescriptions at once. Galena started losing money as a result of
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    this practice because Galena would pay for all 96 pills instead of whatever
    vouchers were needed to titrate the patients, and Couch and Ruan were the top two
    prescribers in the country, accounting for 30% of the total prescriptions for
    Abstral. Under the voucher program, the pharmacy filling the prescriptions got
    paid the same as if the prescription was fully covered by insurance. And 91% of
    the Subsys and Abstral prescriptions Ruan and Couch wrote were filled by their
    patients at their own pharmacy, C&R. Galena had to abandon the voucher program
    in March 2014, and Ruan and Couch slowed their prescribing of Abstral in
    response to the cessation of the voucher program.
    When PPSA was shut down in May 2015, national Abstral sales dropped
    “significantly.” In fact, Galena was forced to sell its license for Abstral because it
    could not make up the lost revenue.
    ii.    The Appellants’ Participation in Insys’s Speaker
    Program
    Natalie Perhacs (“Perhacs”), a former sales representative for Insys, testified
    that Insys also sought to influence Ruan and Couch’s prescribing with money.
    Perhacs first met Ruan and Couch when she was a sales representative for a
    respiratory equipment company. Eventually, Ruan recommended Perhacs for a job
    at Insys. Perhacs became the Insys drug representative for Ruan and Couch. She
    explained that Insys had created a speaker program in August 2012 in which it paid
    doctors to talk about Subsys to other doctors, usually over a meal at a restaurant.
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    Pharmaceutically-funded speaker programs are lawful, but payments made to
    doctors are required to be disclosed to the public. Both Ruan and Couch had been
    speakers for Insys since before she started. The stated goal of the speaker program
    was to educate doctors and get them to write more prescriptions, but Perhacs stated
    that Ruan and Couch would do speaker programs when no other prescribers
    showed up. She stated that PPSA was one of the top ten prescribers of Subsys, and
    Ruan and Couch were “whales” (the top prescribing doctors). She indicated that
    the actual purpose of the speaker program was to influence Ruan and Couch into
    continuing to prescribe Subsys, and Ruan and Couch were paid for their
    involvement in these dinners. In 2013, Ruan and Couch were each paid to host one
    program per week, and although no prescribers, or the same prescribers, would
    show up to speaking programs, they were rarely canceled because the point was
    not to educate others but to “influence how many prescriptions [the appellants]
    write.” If a program was canceled, Perhacs could be fired or face a financial
    penalty.
    In November 2013, Ruan approached a Galena sales representative about
    becoming a speaker for Abstral because of his high-prescribing of TIRF
    medications, generally. However, Galena decided it would not make sense to have
    Ruan be a speaker because there were no other doctors in the area prescribing
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    TIRF medications, and the purpose of the speaker program was to educate other
    doctors.
    In early 2014, after the appellants started prescribing more Abstral, the
    competing TIRF medication, Insys employees grew concerned about losing market
    share. On an email including top Insys executives, the Vice President of Sales said
    that “Dr. Ruan and Dr. Couch are killing us.” In April 2014, Insys reduced, but did
    not stop, the appellants’ speaking programs.
    A few months later, in June 2014, Ruan learned that a Michigan doctor, the
    top national Subsys prescriber, had been indicted for receiving kickbacks from
    Insys in part related to his acceptance of honoraria received from the speaker
    program. In that criminal complaint, which Ruan saw, Ruan and Couch are
    identified by prescriber number as the number three and five prescribers,
    respectively. The next day, Ruan began planning for Insys to donate all of his
    subsequent speaker fees to universities, in one case establishing a scholarship in his
    name.
    Nonetheless, Insys paid Couch more than $100,000 and Ruan over $166,000
    for speaking engagements from 2013 until the FBI raided PPSA in May 2015. In
    2016, Perhacs pled guilty to conspiracy to violate the Anti-Kickback statute by
    paying kickbacks to the appellants to prescribe Subsys through the speaker
    program.
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    iii.   The Appellants Ordered Unnecessary Drug Tests and
    Used Their Pharmacy Inappropriately
    Prescribing certain drugs when they had a financial self-interest to do so was
    not the only example of illegal conduct by Ruan and Couch: the government also
    sought to prove that they ordered unnecessary drug tests for patients solely because
    they would generate revenue. Government expert Dr. Rahul Vohra (“Dr. Vohra”)
    explained that in pain management, drug testing patients can be a valuable clinical
    tool because it can tell a doctor whether the patients are not taking the drugs
    prescribed or are taking other drugs that they should not be. This testing comes in
    two forms: an in-office “cup” screening, which is instantaneous but less accurate,
    and an off-site test with gas chromatography and mass spectroscopy (GC-MS),
    which takes longer but is more accurate. In 2013, Ruan began ordering off-site
    GC-MS testing for every patient because, in his words, off-site testing “generates
    revenue,” while in-office urine tests “pays nothing.” Ruan negotiated with the off-
    site drug testing company, threatening to work with a competitor unless the
    company could start immediately because he was “losing about $8,000 a day from
    not testing and . . . cannot just wait.” Later that year, when PPSA switched to an
    electronic medical records system, and nurses forgot to order the GS-MS tests in
    the system for every patient, Ruan forwarded to Couch a discussion from the
    testing company about the missing orders, estimating an annual lost profit of over
    $800,000. He told Couch, “[I]f we do not run GC-MS, there is no revenue.”
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    Dr. Aultman and Dr. Vohra also explained that the proper way for a doctor
    to use drug screening is to counsel patients whose tests are inconsistent, indicating
    potential diversion or abuse of drugs, or to eventually “fire” them as patients. Yet
    the government presented evidence that Ruan and Couch rarely fired patients
    whose drug screens were inconsistent because they would lose the revenue. For
    example, a patient who was selling his medications was released from the practice
    only after his sixth or seventh inconsistent drug test using his five-year-old son’s
    urine. Another patient, a former felon with numerous drug screens not showing
    prescribed drugs, was also continuously prescribed more opioids. An email Ruan
    wrote to a medical student was introduced, in which Ruan stated that “[i]n private
    practice the more you fire, the more revenue you lose.” Instead, he opined, “when
    one patient tests positive for street drugs, that gives you more reason to do more
    frequent urine drug screens, which pays three times more than an office visit.”
    While Ruan and Couch did not often fire patients with inconsistent drug screens,
    they did fire patients whose insurance would no longer pay for their TIRFs. For
    example, despite a history of drug abuse and three trips to the emergency room
    caused by her overusing TIRFs, Ruan dismissed patient Kathleen Burns only after
    her insurance stopped covering Subsys.
    The government also put on evidence that Ruan and Couch used their
    pharmacy, C&R, inappropriately. Insys helped them prescribe more Subsys by
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    ensuring it would be in stock at C&R. C&R was “having trouble filling [Subsys] as
    often as it was written.” This was even though, in 2014, C&R was ordering from
    wholesalers more than 42 times as much Subsys as the average U.S. pharmacy.
    Insys’s owner and its CEO came to Mobile, and it was arranged that C&R would
    purchase Subsys directly from Insys, cutting out the wholesalers. Ruan and Couch
    also asked Galena to cut out the wholesalers and ship Abstral directly to C&R, but
    it refused. However, Galena did offer a rebate program under which C&R received
    8.75% of the purchase price for all Abstral it dispensed. C&R dispensed nearly $13
    million of Abstral, approximately half of which occurred after the rebate
    agreement, making its rebate to C&R more than half a million dollars.
    Additionally, Ruan and Couch often prescribed medications based solely on
    what was in stock at C&R, rather than on the patient’s medical needs. Nurse
    practitioners testified that Ruan “strongly encouraged” patients to use C&R and
    that staff took patients’ prescriptions directly to C&R. One testified that Ruan
    “wanted to know what we [C&R] had in stock” before writing prescriptions. Dr.
    Greenberg opined that Ruan and Couch should have disclosed to patients that they
    owned C&R, but they rarely did.
    4.    Ruan and Couch Often Prescribed Opioids Without Seeing
    Patients, Obtaining Informed Consent, or Keeping
    Accurate Records
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    Another way that the government sought to establish that PPSA operated
    outside the usual course of professional practice was to show that Ruan and Couch
    prescribed powerful opioids without actually seeing patients. The government’s
    medical experts testified that before prescribing controlled substances, a doctor
    should see the patient, take a medical history, and do an exam. A doctor who
    conducts a thorough evaluation of each patient can normally see 20 to 25 patients
    per day, but PPSA routinely processed 150 to 200 patients daily, often quadruple-
    booking patients for the same time. This worked because many PPSA patients
    never saw Couch and rarely saw Ruan. In fact, one patient for whom Couch signed
    multiple prescriptions and another patient’s wife who came to half of her
    husband’s appointments could not identify Couch in court because they had never
    met him. Others said they had met him only once, despite multiple PPSA visits
    during which he signed prescriptions for them. Instead, patients were seen by nurse
    practitioners who were not doctors, namely Justin Palmer, Stacy Madison,
    Bridgette Parker, Matt Bean, and Sharon Noland.
    The jury was able to see this practice firsthand as DEA task force officer
    Patrick Kelley (“Kelley” or “Officer Kelley”) went undercover to PPSA as a
    patient under the alias “Shawn Brennan” in August 2014. Kelley testified, and
    undercover videos of his PPSA office visits were played for the jury. The DEA
    arranged for a local chiropractor to refer Kelley to Couch with medical records,
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    including normal MRI results. Although Kelley was first turned away from PPSA
    because he did not have insurance, he was admitted later that same day after the
    chiropractor called PPSA to vouch for him. Rather than see Couch, Kelley saw a
    nurse practitioner, Stacy Madison (“Madison), who took a brief medical history
    from Kelley but did not question him about his pain levels, even though he had
    deliberately left that question blank on the new patient form. Kelley was asked to
    bend forward as far as he could without pain, and he was able to touch the floor.
    Nonetheless, he was asked whether he had previously taken anything that helped
    with his pain. Kelley started his answer with the caveat that he was “going to have
    to admit to some criminal activity” and said that he had “blue” pills called
    “Roxy”— purposefully using street names for Roxicodone 30 mg, an “immediate
    release” version of oxycodone that is popular among substance abusers. Couch
    made a 42-second appearance at the end of that visit and signed a 90-pill
    prescription for Roxicodone 30 mg. Kelley returned for four more visits, never saw
    Couch again, and received Roxicodone prescriptions each time. At his third visit,
    the nurse practitioner, now Bridgette Parker (“Parker”), increased his dose to 110
    pills. Kelley never filled the prescriptions, which a check of Alabama’s PDMP
    would have revealed, and urine tests did not show the drugs in his system, but no
    one at PPSA ever discussed that with him. Parker also gave Kelley signed
    prescriptions, dated for a month later than his visit, although regulations provide
    20
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    that physicians must write a separate prescription for each 30-day supply of a
    Schedule II drug and prohibit a single prescription with refills. The prescriptions
    Kelley received at three of these visits to PPSA were the basis for Couch’s
    convictions for illegal drug distribution on Counts 5–7.
    Two undercover DEA agents posed as patients of Ruan’s as well, but Ruan
    never prescribed either patient opioids. The government moved in limine to
    exclude videos of these visits, arguing that they did not show anything illegal and
    Ruan was merely trying to prove that he practiced “good medicine.” The district
    court agreed, so the jury never saw them.
    Nurse practitioner Justin Palmer (“Palmer”) also offered extensive testimony
    for the government, particularly about Couch’s practice. Palmer had worked at
    PPSA since July 2010, first working with both Couch and Ruan but after about a
    year working almost exclusively with Couch. Palmer stated that he would see
    roughly 30 patients a day on Couch’s behalf, often starting hours before Couch
    arrived at the office. Some patients believed Palmer was a doctor, referring to him
    as “Dr. Justin.” Palmer’s visits were billed to insurance as if Couch was the one
    seeing the patients. Palmer also wrote prescriptions for opioids under Couch’s
    signature, even though Palmer was not authorized to prescribe Schedule II drugs.
    When Couch went on vacation, “he would leave prescription pads that were
    presigned so [Palmer] could write what [he] needed to.” Couch continued doing
    21
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    this even after PPSA’s practice administrator told him it was illegal and risky. In
    time, Palmer began forging Couch’s signature on prescriptions. PPSA and C&R
    staff knew Palmer was doing this, and nurses and the pharmacist would ask him to
    sign Couch’s name on prescriptions and records. At one point, Couch caught
    Palmer forging his name on a prescription for Adderall, a Schedule II drug, and
    fired him—but only for “10 minutes”—before deciding to give him a second
    chance and rehiring him. Palmer stated that he believed that Couch continued to be
    aware of his forgery because Palmer was seeing patients when Couch was on
    vacation or out of the office. Palmer estimated that, between 2011 and 2012, he
    had forged Couch’s signature 15 to 20 times a day.
    Palmer also purchased Galena stock when Ruan and Couch did. After that,
    he and Couch discussed candidates that they believed could be suitable for Abstral,
    and it was suggested that Palmer find people to put on the drug. Palmer also
    confirmed that he prescribed TIRF drugs to non-cancer patients for breakthrough
    pain, such as migraines that did not respond to other medication.
    Palmer testified that, while at PPSA, he observed what he believed to be
    drug-seeking behavior from patients, such as patients needing more and more
    medication, saying that they had lost medication, coming back early for refills, or
    saying that they had new pain. He stated that he would often have to argue with
    22
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    patients because he believed that their pain was not as severe as they were
    reporting. The government asked:
    Q:     Did you feel like you were overwriting?
    A:     I did.
    Q:     Approximately what percentage of the patients did you feel like
    were overwritten?
    A:     At least—at least half, half to maybe more.
    Palmer also stole and abused medications from PPSA while working there.
    After a PPSA employee caught Palmer actively injecting drugs while at work,
    Couch suspended him with pay for two weeks. According to Palmer, nurse
    practitioners Parker and Madison also used drugs while working for Couch. Prior
    to trial, Palmer pled guilty in this action to conspiracy to distribute controlled
    substances outside the usual course of professional practice and without a
    legitimate medical purpose.
    Nurse practitioner Sharon Noland (“Noland”) also testified for the
    government. She had worked at PPSA since November 2011, working solely for
    Ruan until May 2014. She testified that Ruan would prescribe certain drugs—
    which Noland called the “flavor of the day”—based on what speaker programs he
    was doing and what was being pushed by “drug reps,” even if the patient’s pain
    was controlled on an existing regimen. She described that Ruan was “very
    involved with the practice,” agreeing with the government’s characterization that
    23
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    he tended to “micromanage.” Noland said that she witnessed Palmer signing
    prescriptions as Couch.
    Nurse practitioner Parker also testified. She had worked at PPSA from
    September 2012 to January 2015, working solely for Couch since December 2013.
    Parker testified that although TIRF medications were indicated for cancer, Ruan
    used it off-label “for anything we could use it on.” Parker also testified that Ruan
    would change patients’ medications, adding TIRF medications to their regimen,
    when their prior medications were working. Ruan would also change patients from
    one TIRF medication to another without explanation. Parker confirmed that Palmer
    would sign Couch’s name on prescriptions, and she stated that she believed that
    half of the patients at PPSA were overmedicated, basing her opinion on the fact
    that the patients “looked . . . overmedicated, wanted more medication.” Parker also
    abused prescription drugs while at work, even going into withdrawal, and Couch
    agreed to help pay for her treatment. Like Palmer, Parker pled guilty prior to trial
    in this case to conspiracy to distribute controlled substances.
    Ruan was aware of Couch’s practice of permitting Palmer and others to see
    patients and write prescriptions on Couch’s behalf. In July 2014, for example,
    Ruan sent an email to Couch asking Couch to “talk to Justin [Palmer] on cutting
    down” the amount of Roxicodone 30 mg he prescribed in light of news reports that
    Alabama had the most opioid prescriptions in the country, which Ruan feared
    24
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    could increase regulatory scrutiny of PPSA. 5 Couch responded that “[w]e,”
    meaning he and Palmer, would not “write triple digit dispentions [sic] of short
    acting opioids.” And although Ruan usually signed his own prescriptions, he often
    did so without seeing patients. Several nurse practitioners testified that they would
    line up at Ruan’s office for him to sign prescriptions. One patient testified that he
    did not meet Ruan until his “fourth or fifth visit” when Ruan “stuck his head in the
    door” to introduce himself.
    The government’s experts also explained to the jury that the usual course of
    professional practice is to obtain patients’ informed consent before administering
    5
    The full email reads as follows:
    I noticed you have quite a few [patients] on Roxicodone 30mg . . . and Oxycontin
    80mg.
    Based on the diversion study done in FL pill mills, these two are the most[] thought
    of in South FL, therefore [they are] considered [the] biggest reg [sic] flag[s]. I think
    you should talk to Justin [Palmer] on cutting down Roxicodone 30mg usage,
    especially [because] we are trying to convince [the] AL board of medical examiners
    that we have a great system to keep [patients] satisfied[] and addicts out. We [do
    not] want Roxicodone 30mg [to] mess things up, or at least contradict[] . . what we
    promote. I believe I have two [patients] on oxycodone 30mg, one of them is a W/C,
    cannot handle all others. Also, try to use Oxycontin 60mg instead of 80mg may also
    help.
    Now, everyone in the nation knows that AL state prescribes the most pain killers in
    the nation, [so] we will need to adjust our routine regimen a bit. One of the things
    I have done is to wean off on [benzodiazepines], or ask their [primary care
    physician] to write their [benzodiazepine], as [benzodiazepine] prescription is also
    one of the things they look at and[] [w]e would rather be careful than sorry. Please
    remind [Palmer] about this stuff.
    25
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    drugs and to have accurate records supporting every prescription. But there was
    evidence presented that many patients received no warnings before receiving
    prescriptions for powerful opioids. And many PPSA records contained numerous
    errors, including not listing all prescriptions written or explaining why a
    prescription was changed. Patients testified that exams and tests listed in their
    medical records did not occur.
    5.     Specific Prescriptions Were Illegal
    Aside from evidence pertaining to how Ruan and Couch operated PPSA, the
    government also put on evidence that Ruan and Couch treated approximately three
    dozen specific PPSA patients outside the usual course of professional practice or
    prescribed them medications for no legitimate medical purpose. Fourteen patients,
    or their family members, testified at trial, criticizing the care they received. The
    government’s three medical experts, Dr. Aultman, Dr. Vohra, and Dr. David
    Greenberg (“Dr. Greenberg”), reviewed other patients’ files and offered their
    opinions that the appellants’ treatment of those individuals did not meet the usual
    course of professional practice standard. Evidence was presented that Ruan and
    Couch rapidly increased patients’ opioid dosages beyond the minimum necessary
    for pain control and failed to refer patients for mental-health treatment, surgery, or
    physical therapy that their records indicated would have been appropriate. They
    prescribed powerful opioids to people displaying red flags for diversion and abuse,
    26
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    like criminal records, inconsistent drug screens, and drug-seeking behavior. Some
    patients testified that they were overmedicated on opioids, making their lives
    worse.
    For example, patient Randall Blackmon (“Blackmon”) testified that he saw
    Couch on his first visit to PPSA but only saw Palmer on subsequent visits.
    Blackmon was prescribed morphine, methadone, and Subsys, even though he did
    not have cancer; a physical examination was never conducted; and no one warned
    him that Subsys could interact negatively with his existing medications. He took
    1600 mcg of Subsys four times a day for eight months, and he claimed that it made
    him lethargic and ruined his quality of life. Towards the end of the eight months,
    he presented to his primary care physician in such a dire state on Subsys that he
    was taken directly to the emergency room. At that point he learned that Subsys was
    only recommended for cancer patients, and his insurance stopped covering it. By
    that time his insurance had paid over $21,500 per month for his Subsys.
    Similarly, patient Joyce Barber (“Barber”) was never treated by Couch, only
    Madison. She was prescribed Subsys with no warnings of the risks, and although
    she did not have cancer, PPSA staff reported to her insurer that she had uterine
    cancer so that her Subsys prescription would be covered. Barber testified that
    Subsys made her feel like she was in a fog, and when Madison increased her
    27
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    prescription from 200 mcg to 400 mcg, she became addicted, slept all day, and had
    no quality of life.
    Patient Tina Goellner never saw Couch as a patient of PPSA. She recounted
    that, although she told staff at her first visit that she did not want to be prescribed
    narcotics for her pain because she was worried about becoming addicted, she was
    prescribed Subsys anyway and told that she should not worry because she did not
    have an “addictive personality.” Subsys made her sleepy within two minutes of
    taking it, and when her dosage was increased rapidly from 200 mcg four times a
    day, to 400 mcg four times a day, to 800 mcg four times a day, she began sleeping
    all day.
    Patient Tamison Blanks(“Blanks”) testified that she saw Couch once for five
    minutes despite going to regular appointments at PPSA for over 11 months.
    Although she was already taking Soma and hydrocodone (brand name Norco), she
    was prescribed 600 mcg of Subsys to use four times a day on her first visit, with no
    warnings. She described her dosage as “very strong” and said that she became a
    “monster” on Subsys. She described an instance where the Subsys numbed her to
    the point that she lay on a heating pad for so long that it burnt her breast, requiring
    a visit to the emergency room. She also said that at one of her appointments at
    PPSA, nurse practitioner Parker had abused opioids to the point that she was
    talking incoherently and fell asleep for about 10 minutes. Blanks commiserated
    28
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    with Parker’s predicament because she had been in the same situation, and left that
    appointment and immediately checked in to a rehabilitation center.
    In an attempt to contrast testimony like the foregoing, Ruan and Couch
    sought to call patients who would have testified that they approved of their
    treatment by Ruan and Couch and that their treatment enabled them to have a
    better quality of life. However, the district court ruled that because the appellants
    were not charged with illegally prescribing medication to all of their patients, and
    the government acknowledged that they had many patients to whom they provided
    legitimate care,6 this “good patient” evidence was irrelevant to the charges and
    would waste time in an already lengthy trial. They were thus prohibited from
    calling patients not identified in the Superseding Indictment or otherwise presented
    throughout the government’s case, but they were, however, able to call as
    witnesses patients whose files were discussed by the government’s experts.
    6.     The Appellants Engaged in Fraud, Accepted Kickbacks,
    and Ruan Laundered the Proceeds
    Aside from violating the Controlled Substances Act, the government also
    presented evidence that the appellants engaged in fraud. Ruan and Couch lied to
    insurers, telling them that some patients had cancer so that insurers would pay for
    their TIRF prescriptions. BlueCross BlueShield of Alabama (“BCBS”), which
    6
    Indeed, despite the Superseding Indictment calling PPSA a “pill mill,” by the time of trial
    the government began referring to it as a “money mill” instead.
    29
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    insured a large portion of PPSA’s patients, paid less for nurse practitioner visits
    than for doctor visits and had a policy requiring a physician to actually see a
    patient before billing for services under the physician’s name, yet Ruan and Couch
    routinely billed BCBS for office visits conducted entirely by nurse practitioners
    under the doctor’s identification number. The appellants also billed for more
    complex office visits than they actually conducted, resulting in more revenue.
    To support the charges alleging conspiracies involving kickbacks, Perhacs
    testified that the fees Ruan and Couch received from the Insys speaking
    engagements were solely to induce them to prescribe more Subsys. Separately, the
    government sought to prove that the company that managed PPSA’s in-house
    workers’ compensation dispensary gave illegal kickbacks to Ruan and Couch in
    exchange for referring their patients. Christopher Manfuso (“Manfuso”) testified
    that Ruan and Couch treated patients with work-related injuries covered by
    workers’ compensation insurance, which most workers get through a state
    program. For patients’ convenience, Alabama’s workers’ compensation program
    permits doctors to have an in-office dispensary for workers’ compensation patients.
    Unlike a pharmacy, a dispensary provides only prepackaged medication. Insurers,
    including the workers’ compensation program, “apply a steep discount” to
    medication dispensed at a pharmacy and billed electronically. But in a dispensary,
    the state sets the prices for medications, and Alabama’s fee schedule is “quite
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    generous compared to commercial insurance.” Accordingly, “there’s more money
    to be made” with a dispensary than sending workers’ compensation patients to a
    pharmacy, even one owned by the doctor; the revenues can be “about a hundred
    percent higher.”
    The appellants ran such a dispensary at PPSA’s Springhill location to
    dispense drugs to patients covered by workers’ compensation insurance. In 2011,
    Industrial Pharmacy Management (“IPM”) approached the appellants about taking
    over the management of their dispensary. When working with an outside company
    like IPM to manage a dispensary, the management company usually fronts the
    money to purchase the medications under the doctor’s DEA number and then
    reimburses itself from the gross receipts. The management company then deducts
    its management fee, usually 30%, and any additional costs, and the doctor is left
    with the remaining profit. With their previous management company, Ruan had
    been receiving around $40,000 a month in profit from PPSA’s dispensary. To
    “induce [the appellants] to sign up with” IPM, Manfuso, an IPM representative,
    offered to deviate from the standard payment model and guarantee Ruan $45,000 a
    month—regardless of how much or how little the dispensary actually profited—
    because it was “the only way [he] could get the business.” Over the next two years,
    Ruan executed several variations of this contract with IPM, negotiating on behalf
    of both himself and Couch. Ruan’s guarantees fluctuated between $45,000 and
    31
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    $53,000 a month. Couch received guaranteed payments in the $15,000-to-$20,000
    range. To hide this difference from Couch, Ruan insisted that Manfuso send the
    checks to his house, not to PPSA.
    After several years, the FBI raided and shut down IPM for paying kickbacks,
    and Michael Drobot, Manfuso’s direct boss at IPM, pled guilty to providing
    kickbacks in a California prosecution. Manfuso then opened his own company,
    Comprehensive RX Management (“CRM”). Ruan demanded even higher
    guarantees from CRM, upwards of $80,000 a month at one point. All told, Ruan
    received more than $2.4 million and Couch received nearly $1 million from IPM
    and CRM.
    Manfuso recalled that his interactions with Ruan were “[e]xtremely atypical”
    of the hundreds of other doctors with whom Manfuso worked. In determining how
    to stock the formulary (the dispensary’s inventory of drugs), Ruan was interested
    in the profit margins of various drugs, not clinical information. Manfuso also
    ultimately pled guilty to violating the Anti-Kickback statute.
    Finally, to support the three money laundering counts, the government
    presented evidence that Ruan had 23 different bank accounts and used proceeds
    from illegal activities to purchase two luxury cars, worth over $100,000 each.
    7.    The Defense Case
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    Ruan and Couch testified in their defense, both stating that their various
    policies and practices were within the usual course of professional practice. Couch
    denied ever giving Palmer permission to sign his name on a prescription. On cross-
    examination, the government asked Ruan about the email that he sent to Couch
    regarding Palmer writing fewer Roxicodone prescriptions. The following exchange
    occurred:
    Q:    Okay. Now, is this one of the things you told [Couch] is: Please
    remind [Palmer] about this stuff.
    A:    That’s what it said.
    Q:    Because you knew that [Palmer] was writing [prescriptions for
    Roxicodone]; correct?
    A:    He was initiating, I thought, not that he was—he saw the follow
    up and he initiated it. Dr. Couch had to approve. So if he
    initiated it, Dr. Couch do [sic] not want to turn it down.
    Q:    But you had knowledge that [Palmer] was—you wanted
    [Palmer] to cut down the [Roxicodone]; is that correct?
    A:    Initially, yes. That’s my intention; that’s right.
    Q:    And Dr. Couch told you back that he reviewed it with [Palmer]
    and it says: We do not write triple digits; is that correct?
    A:    Yes, that’s what it says.
    Q:    It says “we?”
    A:    Right.
    33
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    Ruan and Couch also called various PPSA employees and five patients
    identified by the government who testified favorably as to their course of treatment
    at PPSA. They called three experts, Dr. Carol Warfield (“Dr. Warfield”), Dr.
    Christopher George Gharibo, and Dr. Jeffrey A. Gudin. Dr. Warfield opined that
    Dr. Couch’s prescribing habits were within the usual course of professional
    practice and for a medical purpose. Specifically, Dr. Warfield reviewed files for
    five of Couch’s patients, and she testified that the medications Couch prescribed
    were in the usual course of medical practice and for a legitimate purpose. The other
    experts testified similarly. 7
    C.     Forfeiture and Ruan’s Sentence
    Immediately following the verdict, Ruan signed a forfeiture agreement,
    stipulating that he “w[ould] not oppose the entry of a Preliminary Order of
    Forfeiture, forfeiting the above-listed assets and sums of money.” He agreed to
    forfeit various bank accounts, two real properties, and 18 cars, and to the entry of a
    money judgment “for a sum of money of at least $5,000,000.” The following week,
    the district court entered a Preliminary Order of Forfeiture pursuant to this
    agreement. This order became final at sentencing.
    In Ruan’s presentence investigation report (“PSR”), the probation officer
    applied a base offense level of 38 under U.S.S.G. § 2S1.1, based on an underlying
    7
    Where necessary below, additional trial evidence is discussed regarding some issues.
    34
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    offense of drug conspiracy for which the government asserted that Ruan was
    accountable for the equivalent of 309,872 kilograms of marijuana. Ruan then
    received a two-level enhancement under U.S.S.G. § 2S1.1(b)(2)(B) because he had
    been convicted of violating 18 U.S.C. § 1956. He received another two-level
    enhancement for abusing a position of public trust, pursuant to U.S.S.G. § 3B1.3.
    Finally, Ruan received a two-level obstruction-of-justice enhancement for
    testifying falsely at trial pursuant to U.S.S.G. § 3C1.1. The PSR calculated the
    adjusted offense level as 44, but because the offense level exceeded the maximum
    level used in the guidelines, which is 43, the PSR treated Ruan’s total offense level
    as 43. Because Ruan had no criminal history, he was attributed a criminal history
    category of I.
    Based on an offense level of 43 and a criminal history category of I, the PSR
    noted that the guideline imprisonment range was simply “life.” However, the
    statutorily-authorized maximum sentences for each of the convictions were less
    than the applicable range. Specifically, the PSR noted that the maximum term of
    imprisonment was: (1) 20 years for each of Counts 1, 2, 4, 8, 9, 11, and 12; (2) 40
    years for Count 3; (3) 10 years for each of Counts 15, 18, 19, 20, 21, and 22; and
    (4) 5 years for each of Counts 16 and 17. Pursuant to U.S.S.G. § 5G1.2(b), the
    probation officer converted the statutory maximum penalties to months and added
    them together, arriving at a guideline range of 3,000 months. The probation officer
    35
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    also determined that Ruan owed restitution totaling $17,261,859.14 to various
    insurance companies that had paid for illegal prescriptions.
    Ruan objected to the PSR and filed a sentencing memorandum, and the
    government responded to his objections. Ruan first objected that the government’s
    drug-quantity calculation grossly overestimated the number of relevant
    prescriptions. The government responded that the district court needed only to
    approximate the quantity of controlled substances that were within the scope of the
    criminal activity that Ruan jointly undertook. The government explained that to
    reach that total drug quantity, the government requested data of all controlled
    substances that PPSA prescribed during the relevant period, and then reduced the
    list to only morphine, oxycodone, methadone, hydromorphone, oxymorphone, and
    fentanyl. The government then calculated the total number of grams prescribed of
    each individual drug by first multiplying the number of units of the drug prescribed
    by its strength and converting that result to grams. Then, the government
    calculated the total amount of each drug and converted these totals to their
    marijuana equivalents. In determining how many of those prescriptions were
    illegal, the government acknowledged that not all prescriptions were illegal.
    However, the government noted that there was testimony from several witnesses,
    including nurse practitioners Palmer and Parker, who roughly estimated that 50%
    of the patients were illegally prescribed controlled substances. However, the
    36
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    government also stated that the ascribed offense level would still have been
    appropriate even if only 10.6% of the prescriptions written by Ruan and Couch
    were illegal. The government argued that sufficient evidence at trial was presented
    for the court to find that at least 10.6% of the prescriptions were written outside the
    usual course of professional practice, including: the manner in which Ruan and
    Couch prescribed opioids was consistent across time and patients; Couch rarely
    saw patients during follow up office visits; prescriptions were written in Couch’s
    name by Palmer, which both doctors knew about; 5,793 prescriptions were written
    in Couch’s name when he was out of the state or country; patients were seen and
    prescribed opioids before Couch would arrive to work at PPSA; and Couch and
    Ruan prescribed medication when they had a financial self-interest to do so.
    Ruan disagreed, contending that the drug quantity should have been based
    on what was proven at trial through expert or patient testimony, and he argued that
    any reliance on Palmer’s or Parker’s statements as to 50% of the prescriptions
    being unlawful would be improper because (1) there was no established basis for
    their opinions, (2) they worked at a different location than Ruan, and (3) they
    lacked the ability or expertise to reach their conclusions. Ruan also offered DEA
    publications, which he stated showed that the average sentence for cases with
    between 1 and 5 distribution counts was 83.4 months.
    37
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    Ruan also adopted Couch’s arguments at sentencing, among them that other
    circuits followed a more nuanced approach in calculating drug quantities attributed
    to physicians because doctors’ prescriptions were presumed to be legal. He also
    asserted that courts should exclude any prescriptions that merely breach the civil
    malpractice standard because that standard did not establish criminality. He noted
    that, despite the government having Palmer on the stand for several hours, the
    reference to the 50% figure lasted mere seconds, and the government could have
    elicited more details from Palmer, such as explaining whether the term
    “overmedicated” referred to a breach of the civil standard of care or to
    prescriptions outside the usual course of professional practice.
    Ruan’s second objection to the PSR was to the restitution calculation. The
    government explained that it calculated restitution by taking the total paid for
    medications by insurers BCBS, United Healthcare, Medicare, and Tricare, and first
    deducted the payments each made for non-controlled substances and Schedule IV
    and V controlled substances. Then, the government deducted 15% of the total each
    insurer paid for TIRF prescriptions, based on testimony that no more than 15% of
    PPSA patients were cancer patients. The government finally deducted 50% from
    the amounts each insurer paid for the remaining Schedule II prescriptions based on
    the testimony that 50% of PPSA patients were overmedicated. Ruan responded,
    with regard to the illegal TIRF prescription percentage of 85%, that off-label TIRF
    38
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    prescriptions were not inherently illegal. He pointed out that insurance companies,
    including BCBS, sometimes approved such prescriptions, and that Dr. Aultman
    had agreed that prescribing off-label is not illegal. He also argued that the 50%
    figure as to the remaining Schedule II drugs was speculative, and the government
    should provide specific evidence as to why each prescription paid for by each
    insurer was fraudulent.
    Ruan’s third objection was to the obstruction-of-justice enhancement. In
    response, the government stated that Ruan testified falsely when he stated that he
    was unaware that Palmer was forging Couch’s prescriptions. In an email, Ruan
    reminded Couch to talk to Palmer about not prescribing “red flag” drugs, and
    testimony from other PPSA employees and patients established that nearly
    everyone was aware that Palmer was prescribing controlled substances in Couch’s
    name. The government pointed out that Ruan had a financial interest in that
    activity because prescriptions forged by Palmer could be filled at C&R.
    At sentencing, Ruan reiterated these arguments.8 He also argued that: (1) he
    prescribed half the number of drugs that Couch did; (2) he exercised greater
    oversight over his nurse practitioners than Couch had; (3) he had an excellent
    national reputation; and (4) despite some mistakes, he practiced good medicine and
    8
    The district court ruled on the appellants’ common objections at Couch’s sentencing,
    which was the day before Ruan’s. Ruan’s attorney participated in these portions of Couch’s
    sentencing.
    39
    Case: 17-12653     Date Filed: 07/10/2020   Page: 40 of 137
    legitimately helped patients. The government responded that: (1) Ruan was the
    leader of PPSA and that every aspect of the illegal activity was led and directed by
    him; (2) he made a variety of decisions in his practice based on whether he would
    make money off of them rather than whether it would benefit the patient being
    treated; and (3) he had a variety of valuable assets that he attempted to hide.
    The district court found that Ruan was the leader of the fraud offenses and
    racketeering enterprise. The court noted that Ruan was the “better doctor”—insofar
    as he had more board certifications and degrees—but it was his making the
    business decisions that necessitated a higher sentence. The district court stated that
    it recalled testimony that 50% of the prescriptions written were not for a legitimate
    medical purpose and stated that using this testimony was a reasonable way for the
    government to calculate the drug-quantity and restitution amounts. The court found
    that the government had showed that at least 10.6% of the prescriptions were
    written outside the usual course of professional practice, and it concluded that the
    appropriate base offense level was 38. The district court also found that the
    obstruction-of-justice enhancement was appropriate because it concluded that the
    email from Ruan to Couch about Palmer was a clear indication that Ruan was
    aware of Palmer forging prescriptions. The court sentenced Ruan to 252 months’
    imprisonment, varying downward because Ruan did not have a criminal history
    and because the court believed that the sentence reflected the seriousness of the
    40
    Case: 17-12653       Date Filed: 07/10/2020       Page: 41 of 137
    offense and the need for punishment, deterrence, and incapacitation. It also ordered
    Ruan to make restitution as described in the PSR. Lastly, the district court finalized
    a preliminary order of forfeiture as to Ruan.
    II.    Discussion
    A.      Sufficiency of the Evidence
    Ruan challenges the sufficiency of the evidence on all counts against him.
    Couch joins Ruan’s arguments as to their joint convictions—Counts 1–4, 15–17,
    and 19. 9
    This Court “review[s] the sufficiency of the evidence de novo, viewing the
    evidence and all reasonable inferences and credibility choices in favor of the
    government and the jury’s verdict.” United States v. Ignasiak, 
    667 F.3d 1217
    , 1227
    (11th Cir. 2012). “A conviction must be affirmed unless there is no reasonable
    construction of the evidence from which the jury could have found the defendant
    guilty beyond a reasonable doubt.”
    Id. As we
    explain below, we conclude that the
    evidence presented at trial was sufficient to convict the appellants on all of the
    counts that are challenged, except Count 16 charging both appellants with
    9
    Couch does not challenge on appeal the sufficiency of the evidence on Counts 5–7,
    substantive drug distribution charges based on the prescriptions he wrote for Officer Kelley, or
    on Counts 13 and 14, substantive drug distribution charges based on prescriptions he wrote for
    his patients Kenneth Daves and Patrick Chausse.
    41
    Case: 17-12653      Date Filed: 07/10/2020       Page: 42 of 137
    conspiring to violate the Anti-Kickback statute based on their operation of PPSA’s
    in-house workers’ compensation dispensary.
    1.    Counts 8, 9, 11, and 12: Substantive Drug Distribution
    Against Ruan10
    Counts 8, 9, 11, and 12 of the Superseding Indictment alleged that Ruan’s
    prescribing of opioids to four specific patients violated 21 U.S.C. § 841(a)(1), and
    18 U.S.C. § 2. In the medical context, drug distribution in violation of § 841(a)(1)
    requires proof that either “1) the prescription was not for a ‘legitimate medical
    purpose’ or 2) the prescription was not made in the ‘usual course of professional
    practice.’” United States v. Joseph, 
    709 F.3d 1082
    , 1102 (11th Cir. 2013) (quoting
    United States v. Tobin, 
    676 F.3d 1264
    , 1282 (11th Cir. 2012)). “The mens rea
    required for a conviction under section 841(a)(1) is ‘knowledge, not willfulness.’”
    Id. (quoting Tobin,
    676 F.3d at 1279–80). Ruan was charged and convicted as both
    a principal, 21 U.S.C. § 841(a)(1), and an aider and abettor, 18 U.S.C. § 2. To
    sustain a conviction under 18 U.S.C. § 2, “the prosecution must show that ‘the
    defendant associated [him]self with a criminal venture, participated in it as
    something [ ]he wished to bring about, and sought by [his] actions to make it
    succeed.’”
    Id. (quoting United
    States v. Pantoja-Soto, 
    739 F.2d 1520
    , 1525 (11th
    Cir. 1984)).
    10
    We discuss the various counts of conviction slightly out of order for ease of analysis.
    42
    Case: 17-12653     Date Filed: 07/10/2020    Page: 43 of 137
    i.    Count 8: Prescriptions Ruan Wrote on February
    26, 2015 for Diane Greathouse
    Count 8 charged that six prescriptions Ruan wrote for patient Diane
    Greathouse (“Greathouse”) on February 26, 2015—two for 400 mcg each of the
    TIRF medications Abstral and Subsys, one for 40 mg of OxyContin (an extended
    release oxycodone), and one for 10 mg of Norco—amounted to unlawful drug
    distribution. Government expert witness Dr. Greenberg reviewed Greathouse’s file
    and testified at trial that those prescriptions were not for any legitimate medical
    purpose and that Ruan’s overall treatment of Greathouse, including prescribing
    them, was outside the usual course of professional practice. In support, Dr.
    Greenberg stated that Ruan prescribed Greathouse Abstral and Subsys, two TIRF
    medications that are intended for cancer treatment, although she did not have
    cancer. Additionally, in his opinion, Ruan’s choice to prescribe both Abstral and
    Subsys, different formulations of the same drug, “makes no sense.” Dr. Greenberg
    further explained that Ruan was already prescribing Greathouse such high doses of
    opioids that she could be “in a stupor and ready to fall into a coma”, but then had
    tried to counteract those effects, not by discontinuing the opioids but by improperly
    prescribing Provigil, an amphetamine, to the mixture of drugs. He also noted that
    Ruan had previously prescribed Greathouse a naloxone (brand name Narcan)
    injector, which is used as an antidote for fentanyl overdoses, without her informed
    43
    Case: 17-12653    Date Filed: 07/10/2020    Page: 44 of 137
    consent and without ensuring that her family members, who would be the ones
    using it in case of her overdose, had CPR or other relevant training.
    Ruan’s principal argument in support of his claim that the evidence was
    insufficient to convict him on Count 8—as well as on Counts 9, 11, and 12—is that
    Dr. Greenberg’s testimony was unreliable. Ruan draws our attention to the fact that
    on the Monday following Dr. Greenberg’s testimony at trial, which had concluded
    the previous week, government counsel alerted the district court and defense
    counsel, through a motion filed under seal, that Dr. Greenberg had notified them
    over the weekend that he thought he had early-onset dementia and was consulting a
    neurologist. During a hearing outside the presence of the jury, government counsel
    expressed misgivings about some of Dr. Greenberg’s testimony, represented that
    he had offered to refund monies and not charge for his trial testimony and that the
    government intended to accept his offer, but indicated that the government wanted
    to gather more information before deciding whether to ask for a specific jury
    instruction on the issue.
    Despite this troubling circumstance, Ruan cannot succeed on his
    insufficiency of the evidence argument. Neither Ruan nor Couch asked the district
    court to provide the jury with the government’s disclosure concerning Dr.
    Greenberg’s mental health. Rather, at the in-chambers hearing, Couch’s attorney
    noted that the standard for competency is “fairly liberal,” recounted that Dr.
    44
    Case: 17-12653      Date Filed: 07/10/2020   Page: 45 of 137
    Greenberg had been cross-examined, and mentioned that “we don’t think that
    there’s anything there.” Ruan’s attorney said nothing. The district judge stated, “I
    don’t think there’s any question that he was competent to testify,” suggested that
    the issue merely related to Dr. Greenberg’s credibility, and decided to await more
    information from the government, if any materialized. No further information was
    presented by the end of trial.
    Considering the foregoing, to the extent Ruan asserts that the jury should
    have been made aware that Dr. Greenberg thought he may have a mental health
    issue, our review of that claim is limited to plain error because Ruan never
    preserved the issue. See Fed. R. Crim. P. 52(b) (“A plain error that affects
    substantial rights may be considered even though it was not brought to the court’s
    attention.”). And although Dr. Greenberg was the sole government expert witness
    relating to the four substantive drug distribution counts charged against Ruan,
    defense counsel rigorously cross-examined him, during which time, as discussed in
    further detail below, he admitted to several errors and omissions in his testimony
    and even changed his opinion on several points. Thus, the jury was aware that Dr.
    Greenberg’s testimony was not infallible. We thus cannot say that, even if the
    jurors had known of Dr. Greenberg’s disclosure to government counsel, they
    “could not have found [Ruan] guilty under any reasonable construction of the
    45
    Case: 17-12653      Date Filed: 07/10/2020   Page: 46 of 137
    evidence.” 
    Ignasiak, 667 F.3d at 1229
    (quoting United States v. Merrill, 
    513 F.3d 1293
    , 1299 (11th Cir. 2008)).
    Aside from Dr. Greenberg’s credibility, Ruan also argues that the evidence
    was insufficient to convict him on Count 8 because the jury heard during Dr.
    Greenberg’s cross-examination that (1) the medications Ruan prescribed
    Greathouse alleviated her pain and enabled her to continue working, (2) the
    Centers for Disease Control and Prevention recommend Narcan when a patient is
    at risk for opioid overdose, and (3) the FDA authorizes the manufacture of larger
    doses of Subsys and Abstral than what Ruan prescribed. We are not persuaded that
    reasonable jurors could not have found guilt after hearing this evidence. Dr.
    Greenberg testified that if Greathouse was able to work it would only be because
    of the amphetamines Ruan prescribed her and prescribing those was “simply way
    below the rational standard of care for dealing with people who are in a near
    overdose state.” He further explained that subsequent studies had shown that
    Narcan did not always work as intended when given by a family member instead
    of a medical professional and would not help a patient, like Greathouse, who was
    also taking other drugs with sedative effects, including benzodiazepines. The jury
    was entitled to credit Dr. Greenberg’s testimony. Sufficient evidence supports
    Ruan’s conviction on Count 8 for drug distribution.
    ii.    Count 9: Prescriptions Ruan Wrote on April 27, 2015
    for Kim Lowe
    46
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    Count 9 was based on three prescriptions Ruan wrote on April 27, 2015, to
    patient Kim Lowe (“Lowe”) for 600 mcg of Fentora, which is a fentanyl lozenge,
    and 80 mg and 15 mg of the opioids OxyContin and oxycodone, respectively. Dr.
    Greenberg reviewed Lowe’s file and testified at trial that those prescriptions were
    not for any legitimate medical purpose and that Ruan’s overall treatment of Lowe
    since January 2009 was outside the usual course of professional practice. Dr.
    Greenberg specifically stated that Ruan acted outside the usual course of
    professional practice when he: (1) failed to take down Lowe’s history of illnesses
    and medications; (2) failed to refer her for mental health treatment despite her
    general complaints of “severe pain over her entire body” lasting more than 20
    years, which Dr. Greenberg opined was a “red flag” for a psychiatric problem
    given that there are few diseases that can cause such symptoms; (3) failed to obtain
    Lowe’s informed consent prior to prescribing her a combination of oxymorphone
    (brand name Opana), OxyContin, Xanax, oxycodone (brand name Percocet),
    Lunesta sleeping pills, and Soma; (4) prescribed Lowe, who did not have cancer,
    the fentanyl lozenge, which Dr. Greenberg described as an “end-of-life drug that is
    only approved by the FDA for people who are in the last stages of their lives with
    cancer”; (5) failed to counsel her when she ran out of medications prematurely,
    which suggested that she was either taking more than what was prescribed or
    diverting medications; and (6) ignored positive urine screening test results for
    47
    Case: 17-12653    Date Filed: 07/10/2020   Page: 48 of 137
    hydrocodone and fentanyl at a time when Ruan was not prescribing her those
    medications.
    Ruan points out that on cross-examination, Dr. Greenberg was shown a part
    of Lowe’s medical file dating back to 2008 that he had never seen before that
    revealed that Ruan did in fact do an initial exam, record Lowe’s medical history,
    and review information from her referring physician when he first saw her as a
    patient. Dr. Greenberg was also shown where Lowe kept a pain diary and
    communicated her perceived levels of pain to Ruan. Additionally, Lowe herself
    testified for the defense, stating that Ruan did more than just prescribe opioids; his
    treatment of her included a back brace, various nerve and facet blocks, injections,
    epidurals, physical therapy, and ointments. Although Lowe believed that the
    medications Ruan prescribed medically benefited her, she also had trouble
    remembering that she had been a patient of Ruan’s since 2009, believing instead
    that she had only seen him for the past three years. The jury was entitled to credit
    Dr. Greenberg, a physician, over Lowe, and even if Lowe felt that she benefitted
    from the medications Ruan prescribed, a reasonable jury could nonetheless
    conclude that the manner in which Ruan prescribed them was outside the usual
    course of professional practice. Sufficient evidence supports Ruan’s conviction on
    Count 9 for drug distribution.
    iii.   Count 11: Prescription Ruan Wrote on November 25,
    2014 for Deborah Walker
    48
    Case: 17-12653    Date Filed: 07/10/2020    Page: 49 of 137
    Count 11 addressed a prescription for the opioid Opana that Ruan wrote for
    patient Deborah Walker (“Walker”) on November 25, 2014. Dr. Greenberg
    testified that Walker came to Ruan 11 months earlier, in January 2014, seeking
    pain medication shortly after completing a 19-month prison sentence. Dr.
    Greenberg considered prison time a “giant red flag” for drug-seeking behavior but
    noted that he did not see any indication that Ruan had asked Walker whether she
    was incarcerated due to a drug-related crime. He also criticized Ruan’s failure to
    refer Walker to a psychiatrist when it was noted in her file that she had bipolar
    disorder with schizophrenic features. Dr. Greenberg also opined that Ruan should
    have suspected diversion and counseled Walker on such matters when a urine test
    performed during that January 2014 visit did not detect Soma and hydrocodone,
    drugs that he thought Ruan had recently prescribed her. In Dr. Greenberg’s view, it
    was improper for Ruan to have prescribed Opana because it is the “most sought[-
    ]after prescription drug by people who are heroin addicts or other I.V.-type abusers
    of I.V. opioid drugs.” He also condemned Ruan’s addition of prescriptions for
    Soma and hydrocodone at subsequent visits.
    During a visit to Ruan in April 2014, Walker tested positive for several
    drugs, including hydromorphone, that Ruan had not prescribed, which suggested to
    Dr. Greenberg that Walker was receiving opioids from other doctors or off the
    street. Dr. Greenberg testified that he did not believe that Ruan was checking the
    49
    Case: 17-12653        Date Filed: 07/10/2020      Page: 50 of 137
    PDMP, which would have revealed that Walker was indeed receiving pain
    medications from 12 or 13 different doctors. Dr. Greenberg opined that the
    prescription Ruan wrote for Walker for Opana in November 2014 was merely the
    last in a long line of medically illegitimate prescriptions that were written by Ruan
    outside the usual course of professional practice.
    Dr. Greenberg was subject to extensive cross-examination related to his
    review of Walker’s file. He admitted that he had missed that Walker had been a
    patient of Ruan’s in 2011, before going to prison, and that Ruan had prescribed the
    Soma and hydrocodone before her period of incarceration, which could have
    explained why those drugs were not present in the drug screen in January 2014,
    after she had been incarcerated for 19 months. Dr. Greenberg was also shown
    portions of Walker’s physical file from 2008, before PPSA migrated to electronic
    record-keeping, showing that she had been advised about the dangers of
    developing a dependency on opioids and mixing opioids with alcohol. Dr.
    Greenberg admitted that such warnings and informed consent were within the
    scope of professional medical practice.
    The jury also heard from Walker’s husband, 11 who testified that his wife had
    a drug addiction and served time for burglary and stealing to support her drug
    11
    By the time of trial, Walker had died. Prior to Walker’s husband’s testimony, the jury
    was informed of her death and told that there were no allegations that Ruan or Couch was
    responsible.
    50
    Case: 17-12653    Date Filed: 07/10/2020    Page: 51 of 137
    habit. He described how Ruan rapidly increased her opioid dosages beyond the
    minimum necessary for pain control, stating that her prescribed medications would
    put her in an “almost comatose” state, that the dosages were so great that she
    would immediately fall asleep after taking the medications, and that she routinely
    fell asleep while cooking and he would come home from work to find their home
    filled with smoke. Given this testimony, we find that the totality of the evidence
    was sufficient for the jury to determine that Ruan dispensed controlled substances
    to Walker outside the usual course of professional practice as charged in Count 11.
    iv.    Count 12: Prescription Ruan Wrote on October 10,
    2012 for John Bosarge
    Count 12 alleged that a prescription Ruan wrote for morphine sulfate (brand
    name MS-Contin) on October 10, 2012, to patient John Bosarge (“Bosarge”) was
    for no legitimate medical purpose and outside the usual course of professional
    practice. Dr. Greenberg considered Bosarge, who was an opioid-dependent 50-
    year-old, a “high risk” patient because he suffered from psychiatric and cardiac
    problems as well as high blood pressure. Dr. Greenberg opined that Ruan’s
    treatment of Bosarge was outside the usual course of professional practice because,
    rather than prescribe the “absolute minimum” dose of opioids that would have
    helped his pain yet addressed his opioid dependence, he combined the opioid
    prescriptions with prescriptions for Xanax, a “sedative-hypnotic” drug, which
    created a risk of an “accidental respiratory arrest,” and butorphanol, an “agonist-
    51
    Case: 17-12653    Date Filed: 07/10/2020    Page: 52 of 137
    antagonist” drug, which could cause, if a patient is not detoxed from opioids first,
    the patient to go into a painful withdrawal. Dr. Greenberg emphasized that the
    warning labels on those medications warned against prescribing them together.
    Ruan argues that the charged prescription was merely a continuation of
    Bosarge’s prior treatment with his referring physician, but the jury heard evidence
    that morphine like Ruan prescribed Bosarge is a stronger opioid than the
    hydrocodone he was previously taking before the referral to Ruan. The jury was
    entitled to credit Dr. Greenberg’s opinion that Ruan’s treatment of Bosarge fell
    outside the usual course of professional practice, and sufficient evidence supports
    Count 12.
    2.    Counts 2, 3, and 4: Drug Distribution Conspiracies Against
    Couch and Ruan
    Counts 2, 3, and 4 charged the appellants with conspiracies to dispense
    Schedule II drugs, fentanyl, and Schedule III drugs, respectively, in violation of 21
    U.S.C. §§ 846 and 841(a)(1). “In order to secure a conviction for unlawful
    dispensation under § 841(a)(1), the government must prove that the defendant
    ‘dispensed controlled substances for other than legitimate medical purposes in the
    usual course of professional practice, and that he did so knowingly and
    intentionally.’” United States v. Azmat, 
    805 F.3d 1018
    , 1035 (11th Cir. 2015)
    (quoting 
    Ignasiak, 667 F.3d at 1227
    ). “To establish a conspiracy in violation of §
    846,” the government must prove that: “(1) there was an agreement between two or
    52
    Case: 17-12653     Date Filed: 07/10/2020    Page: 53 of 137
    more people to commit a crime (in this case, unlawfully dispensing controlled
    substances in violation of § 841(a)(1)); (2) the defendant knew about the
    agreement; and (3) the defendant voluntarily joined the agreement.”
    Id. (footnote omitted).
    “A conspiracy conviction will be upheld if ‘the circumstances
    surrounding a person’s presence at the scene of conspiratorial activity are so
    obvious that knowledge of its character can fairly be attributed to him.’”
    Id. (quoting United
    States v. Figueroa, 
    720 F.2d 1239
    , 1246 (11th Cir. 1983)).
    i.    Counts 2 and 4: Schedule II and III Drugs
    The appellants argue that the prescriptions they wrote for these drugs were
    legitimate, but the evidence at trial indicated significant activities by Ruan and
    Couch that were outside the course of professional practice. They altered their
    prescribing habits where they had a financial interest, like when they increased
    their Abstral prescriptions after purchasing stock in the company, decreased their
    Abstral prescriptions after a drop in stock price and a change in voucher rules, and
    increased them again after C&R entered a rebate agreement with Galena. Insys
    maintained Ruan and Couch as weekly speakers in order to influence their
    prescription habits. Palmer was forging prescriptions with Couch’s signature, and
    he did this for his patients and for those of other PPSA nurses, something that
    Ruan was aware of and acquiesced to. Couch and Ruan would leave blank
    prescription pads, which sometimes only had the doctors’ signatures on them, for
    53
    Case: 17-12653      Date Filed: 07/10/2020      Page: 54 of 137
    use by the nurses when the doctors were out of the office. Additionally, the patient
    files examined for trial by the government’s experts suggested that there were
    serious gaps in patients’ quality of care, including taking insufficient steps to
    safeguard high-risk patients, ignoring signs of potential drug diversion, and failing
    to get adequately informed consent before prescribing drugs, including for off-
    label use. The jury was free to disbelieve Ruan and Couch and reasonably could
    infer that the appellants were participating in a conspiracy to unlawfully distribute
    controlled substances.
    ii.    Count 3: Fentanyl
    Count 3 charged a conspiracy to distribute fentanyl, also a Schedule II
    drug.12 The jury was asked to find whether the conspiracy involved more than 40
    grams, a quantity triggering a 5-year mandatory minimum sentence under 21
    U.S.C. § 841(b)(1)(B)(vi). The only argument the appellants raise regarding this
    count is that there was insufficient evidence to support the jury’s finding that they
    prescribed over 40 grams of fentanyl in a manner outside the usual course of
    professional practice or for no legitimate medical purpose.
    The government’s chart listing the appellants’ top 28 patients receiving the
    most Subsys or Abstral prescriptions without a cancer diagnosis showed that the
    12
    The Schedule III conspiracy involved hydrocodone, which was reclassified to Schedule II
    in 2014.
    54
    Case: 17-12653     Date Filed: 07/10/2020   Page: 55 of 137
    appellants prescribed a total of 67.311 grams of fentanyl to those patients off-label.
    The appellants claim that the jury could not consider the full 67.311-gram amount
    because the government only presented testimony specifically addressing 10 of
    those patients, who were prescribed a total of 33 grams. More specifically,
    government expert Dr. Greenberg testified about five patients who were prescribed
    a total of 14.958 grams, the fentanyl prescribed to the patients who testified was
    16.621 grams, and the fentanyl prescribed to patients whose relatives testified was
    1.487 grams. However, government experts Dr. Aultman and Dr. Vohra testified
    about an additional five patients who were prescribed fentanyl not included in the
    chart and testified that the appellants’ treatment of them was outside the usual
    course of professional practice. The government points to PDMP data showing that
    these five patients received 8.83 grams of fentanyl, which, combined with the 33
    grams, surpasses the 40-gram threshold.
    While the jury was shown PDMP data throughout the trial, we do not think
    that they were sufficiently presented with the specific data showing that these five
    patients received 8.83 grams of fentanyl. But even if the jury erred in finding that
    over 40 grams was prescribed, the error was harmless because the 5-year
    mandatory minimum sentence was well below the sentences the appellants
    received. We find no error with the jury’s guilty verdict with regard to Count 3.
    3.    Count 15: Health Care Fraud Conspiracy Against
    Couch and Ruan
    55
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    Count 15 alleged that the appellants engaged in a conspiracy to fraudulently
    obtain money from a health care benefits program in violation of 18 U.S.C. §
    1347(a). A health care fraud conspiracy exists when defendants agree to submit
    false claims to health care benefit programs. United States v. Gonzalez, 
    834 F.3d 1206
    , 1214 (11th Cir. 2016). The defendants must have known that the claims
    submitted were actually false.
    Id. “A person
    makes a false claim if the treatments
    that were billed were ‘not medically necessary[ ] or were not delivered to the
    patients.’”
    Id. (quoting United
    States v. Medina, 
    485 F.3d 1291
    , 1304 (11th Cir.
    2007)). To sustain a conviction, the government “had to establish beyond a
    reasonable doubt that: (1) a conspiracy existed to commit health care fraud under
    18 U.S.C. § 1347; (2) [the appellants] knew of the conspiracy; and (3) [the
    appellants] knowingly and voluntarily joined it.”
    Id. The Superseding
    Indictment alleged and the government sought to prove at
    trial that the appellants agreed to commit health care fraud in four ways: (1) falsely
    certifying to insurers that some patients had cancer so that the insurers would pay
    for their TIRF prescriptions; (2) billing BCBS for office visits conducted by nurse
    practitioners using Couch’s physician identification number; (3) billing insurers for
    drug tests that were medically unnecessary; and (4) billing insurers for PPSA
    office visits at which patients were prescribed medically unnecessary drugs. If
    sufficient evidence supports any one of these methods, we must uphold the health
    56
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    care fraud conspiracy conviction. See United States v. Ross, 
    131 F.3d 970
    , 984
    (11th Cir. 1997).
    First, the evidence was sufficient to convict the appellants of conspiring to
    defraud a health care benefits program by falsely certifying to insurers that some
    patients had cancer so that insurers would pay for their TIRF prescriptions. See
    
    Gonzalez, 834 F.3d at 1215
    –16 (submitting a false claim to an insurer encompasses
    lying about a patient’s condition to the insurer). DEA Special Agent Michael Burt
    testified that Ruan signed a letter to Cigna confirming that his patient Kathleen
    Burns’s prescription for Subsys had been “for breakthrough cancer pain,” when
    she did not have cancer. 13 Similarly, Perhacs, the former pharmaceutical sales
    representative for Insys, testified that Couch signed a form sent to Insys to get
    insurance approval for Abstral, 14 listing patient Ronald Ivy’s diagnosis as bladder
    cancer, yet his medical file had no mention of any cancer. Several witnesses,
    including DEA Diversion Investigator Michelle Penfold and Couch’s nurse
    practitioner Palmer, discussed how a Subsys prescription for Joyce Barber listed a
    diagnosis of “[u]terine cancer.” Barber herself testified that when her insurance
    company later called her to verify that she had cancer and she told them truthfully
    13
    Dwight Burns, Kathleen Burns’s husband, confirmed Burt’s testimony. By the time of
    trial, Kathleen Burns had died. Prior to her husband’s testimony, the jury was informed of her
    death and told that there were no allegations that Ruan or Couch was responsible.
    14
    Insys had a unit in its home office, called the “Internal Reimbursement Center,” to assist
    physicians in obtaining insurance approval for Insys.
    57
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    that she did not, they stopped covering Subsys. And Dr. Aultman, when testifying
    regarding her review of several patient files, noted that a prescription Couch wrote
    for Brenda Ward had “cervical cancer” written on it even though her medical
    record contained no verification of that diagnosis.
    We also find that the evidence was sufficient to convict the appellants for
    conspiring to defraud BCBS. Cindy McKenzie, a BCBS employee who oversees
    and manages fraud activities, testified that the appellants routinely billed for office
    visits conducted entirely by nurse practitioners, like Palmer, under Couch’s
    identification number. This practice is called incident to billing, and while some
    insurers allow it,15 BCBS did not. Rather, BCBS paid about 30% less for nurse
    practitioner visits than for doctor visits, and it expressly required a physician
    working with a nurse practitioner to also “see[] and render[] services to the patient”
    to bill BCBS under the doctor’s name. In October 2014, BCBS clarified its policy,
    effective January 1, 2015, to permit only the “provider who is physically
    conducting or affirming the [patient’s history] and performing an in-person
    examination” to submit a bill. BCBS notified providers of this change, and Ken
    Cross, PPSA’s practice manager, testified that he told the appellants that they at
    least needed to see their patients every visit. Yet Palmer saw dozens of BCBS
    15
    Medicare, TriCare, and others allowed “incident to billing,” allowing submission of bills
    under a doctor’s provider number if the doctor was involved in the treatment, through
    participation or oversight.
    58
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    patients every day without Couch. BCBS found no records of PPSA visits billed
    under Palmer’s name, only those billed under Ruan’s and Couch’s. McKenzie
    testified that “[t]hat’s a false claim.”
    Although Ruan testified that he personally saw all of his patients, he
    acquiesced in Couch’s practice of permitting Palmer and others to see patients
    independently. This is evidenced by the July 2014 email in which Ruan asked
    Couch to “talk to Justin [Palmer]on cutting down” the amount of Roxicodone 30
    mg he prescribed in light of news reports that Alabama had the most opioid
    prescriptions in the country. Couch responded that “[w]e,” meaning he and Palmer,
    would not “write triple digit dispentions [sic]of short acting opioids.”
    We also find that the evidence was sufficient to convict the appellants for
    conspiring to defraud a health care benefits program by billing for expensive off-
    site urine screen tests that were medically unnecessary. Ruan ordered them for
    every patient because they generated more revenue than in-house tests. And the
    jury heard from several sources that the appellants rarely discussed inconsistent
    test results with patients, whether to counsel them into compliance or fire them as
    patients. Ruan himself had stated that “[i]n private practice the more you fire, the
    more revenue you lose.” Instead, he opined, “when one patient tests positive for
    street drugs, that gives you more reason to do more frequent urine drug screens,
    which pays three times more than an office visit.”
    59
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    Finally, because we have already found that the evidence is sufficient to
    convict the appellants of illegally prescribing drugs, like Abstral and Subsys,
    outside the course of professional practice, we find that their billing insurers for
    PPSA office visits at which patients were prescribed these drugs that C&R then
    dispensed, is an alternative object of the health care fraud conspiracy. Indeed, for
    Abstral and Subsys, the appellants were either the top or among the top billers of
    BCBS, Medicare, Tricare, and United Healthcare. While not all of these
    prescriptions were illegal, some were. In sum, the evidence was sufficient to
    convict Ruan and Couch for health care fraud conspiracy.
    4.      Counts 16 and 17: Conspiracies to Receive Kickbacks
    Against Couch and Ruan
    Counts 16 and 17 charged the appellants with conspiring, in violation of 18
    U.S.C. § 371, 16 to violate the Anti-Kickback statute in two different ways. The
    statute provides in part that:
    Whoever knowingly and willfully solicits or receives any remuneration
    (including any kickback, bribe, or rebate) directly or indirectly, overtly
    or covertly, in cash or in kind . . . in return for referring an individual
    16
    That statute provides:
    If “two or more persons conspire either to commit any offense against the United
    States, or to defraud the United States, or any agency thereof in any manner or for
    any purpose, and one or more of such persons do any act to effect the object of the
    conspiracy, each shall be fined under this title or imprisoned not more than five
    years, or both.”
    18 U.S.C. § 371.
    60
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    to a person for the furnishing or arranging for the furnishing of any item
    or service for which payment may be made in whole or in part under a
    Federal health care program . . . shall be guilty of a felony and upon
    conviction thereof, shall be fined not more than $100,000 or imprisoned
    for not more than 10 years, or both.
    42 U.S.C. § 1320a-7b(b)(1).
    i.     Count 16: PPSA’s Workers’ Compensation
    Dispensary
    Count 16 charged the appellants with violating the Anti-Kickback statute by
    conspiring together and with Michael Drobot and Manfuso to accept kickbacks in
    exchange for letting IPM and CRM run their in-office workers’ compensation
    dispensary. The appellants argue that their convictions on Count 16 must be
    vacated because there was no “Federal health care program” associated with
    PPSA’s workers’ compensation dispensary. As we explain below, we agree.
    As noted, to prove a violation of the Anti-Kickback statute, the government
    needed to prove that the appellants (1) knowingly and willfully (2) received
    remuneration (3) in return for referring individuals to a person for the furnishing of
    medication (4) paid for by a “Federal health care program.” See 42 U.S.C. §
    1320a-7b(b)(1). The statute defines a “Federal health care program”—Medicaid
    and Medicare are common examples—as “any plan or program that provides
    health benefits, whether directly, through insurance, or otherwise, which is funded
    directly in whole or in part, by the United States Government.” 42 U.S.C. § 1320a-
    7b(f) (emphasis added). Because the 42 U.S.C. § 1320a-7b(b) offense was alleged
    61
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    as an 18 U.S.C. § 371 conspiracy, federal jurisdiction was premised on the
    existence of a “Federal health care program,” in addition to that also being an
    element of the substantive crime. In short, the government had to show that federal
    funds passed through PPSA’s workers’ compensation dispensary.
    In determining whether federal jurisdiction exists, the court examines
    the sufficiency of the evidence offered by the government. United States v. Key, 
    76 F.3d 350
    , 353 (11th Cir. 1996) (“Whether the government proved the jurisdictional
    element is measured as a challenge to the sufficiency of the evidence.”). “All
    evidence and inferences therefrom are viewed in the light most favorable to the
    verdict.”
    Id. The relevant
    inquiry in making this determination is whether a
    reasonable jury could have found the jurisdictional element to have been satisfied
    beyond a reasonable doubt.
    Id. In United
    States v. Dennis, 
    237 F.3d 1295
    (11th Cir. 2001), this Court
    examined at length the amount of evidence sufficient to prove federally-insured
    status in a bank-fraud prosecution. In that case, a government agent testified that
    the two banks involved were federally insured.
    Id. at 1304.
    However, this Court
    found the testimony “equivocal,” and although the jurisdictional nexus was
    established for one of the banks through an official bank document containing the
    phrase “MEMBER FDIC,” there was no such evidence relating to the other bank.
    62
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    Id. Regarding the
    second bank, this Court found the agent’s testimony alone
    insufficient to establish the element:
    The agent’s conclusion that the bank was federally insured appears to
    be premised upon his belief that because a bank is a ‘national bank,’ it
    is necessarily a ‘federally insured bank.’ This reasoning lacks legal
    support. A ‘national bank’ is not necessarily ‘federally insured.’ As
    demonstrated by pertinent statutory provisions, the two concepts are
    distinct and not synonymous.
    Id. at 1305.
    This Court held that the evidence was insufficient to prove beyond a
    reasonable doubt that the bank in question was federally insured and vacated the
    conviction for bank fraud.
    Id. The evidence
    here is similarly equivocal. The government relied on two
    items to satisfy the requirement that the kickbacks must have been paid in
    exchange for referring individuals for services paid for by federal funds. First, the
    government relied on exhibits showing that the U.S. Department of Labor paid for
    office visits for several workers’ compensation patients. But the exhibits showed
    that the U.S. Department of Labor paid for physician services, not prescriptions.
    Second, the government put on evidence that, while most of PPSA’s
    workers’ compensation patients were covered by state-funded insurance, at least
    some patients who received medications from PPSA’s workers’ compensation
    dispensary were longshoremen who were covered by an insurance provider by the
    name of “FARA.” FBI Special Agent Amy White read into evidence a July 2012
    email from Manfuso, in which he told Ruan:
    63
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    FARA is a federal longshoreman insurance program that has requested
    that you no longer dispense to their patients. Since they are a federal
    program, and not an Alabama workers’ comp state program, the laws
    and regulations that apply to their patients are different. . . . Alabama
    workers’ comp law supports that the patient has the right to choose
    where to get their medications. Alabama work comp insurance
    companies cannot legally tell you not to dispense to their patients.
    Federal law unfortunately does not state that the patient has the right to
    choose where to get their medication. The insurance company that
    covers an injured federal worker—in this case that’s FARA—has the
    ability to direct the patient to a certain pharmacy service to get their
    medication. In other words, FARA is allowed to tell you that they don’t
    want you to dispense to their patients and they would like you to send
    their patients to an outside pharmacy.
    There were other subsequent emails from Manfuso to Ruan where Manfuso
    repeatedly instructed Ruan to “immediately stop dispensing to FARA patients”
    because FARA was refusing to cover their medications. The government claimed
    that FARA was a “Federal health care program.” However, none of the documents
    offered by the government at trial contained any indication that federal monies
    actually passed through the dispensary. The appellants argue that FARA is merely
    an insurance program administrator that covered several patients at the dispensary.
    The only evidence at trial relating to FARA are the emails from Manfuso to Ruan,
    which do nothing more than note that FARA is an insurance company. Moreover,
    FARA is not named in 42 U.S.C. § 14402(d), the statute listing Federal health care
    funding programs, like Medicare and Medicaid. We find that this evidence was
    insufficient to establish beyond a reasonable doubt that FARA paid for
    prescriptions with federal funds or that federal monies otherwise passed through
    64
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    PPSA’s workers’ compensation dispensary. Because this element of the offense
    was not proven, the appellants’ convictions for conspiracy to violate the Anti-
    Kickback statute charged in Count 16 cannot stand. Accordingly, we reverse and
    vacate the appellants’ convictions on Count 16, and we vacate their sentences as to
    this count.
    ii.    Count 17: Insys’s Speaker Program
    Count 17 alleged that the appellants conspired with each other, Perhacs, and
    others to violate the Anti-Kickback statute through their participation in Insys’s
    speaker program. The evidence clearly showed that Insys was using its program as
    a cover to funnel money to its top prescribers—Couch and Ruan. In the words of
    Perhacs, Insys selected the appellants to speak because they were “whale[s]”—“in
    [Insys’s] top 10 list”—and that the entire point of the speakers’ program was “[t]o
    influence [the appellants] to keep prescribing a lot of Subsys.” People outside of
    PPSA office staff rarely attended these dinners, and the ones who did were
    sometimes “the same prescriber, time and time again.” In contrast, a representative
    for Galena, the pharmaceutical company manufacturing Subys’s competitor,
    Abstral, testified that when Ruan requested to be a speaker for Abstral, Galena
    declined because “he was treating all of the patients in the area, it didn’t make
    sense for him to be a speaker because there would be nobody to speak to.”
    65
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    The appellants contend that the government failed to prove that they acted
    willfully to violate the Anti-Kickback statute. “Willfully” means that the act was
    committed voluntarily and purposely, with the intent to do something the law
    forbids. See United States v. Starks, 
    157 F.3d 833
    , 837–38 (11th Cir. 1998). Ruan
    points to testimony by Perhacs that Insys selected him as a speaker because he was
    a respected pain management physician. He also argues that Perhacs testified
    against him in hopes of receiving a sentence reduction. But there was sufficient
    evidence for the jury to believe that the speaking program was a sham, and Insys
    only reduced them after the appellants had been prescribing more and more of the
    competitor product, Abstral, for months. Additionally, Ruan showed consciousness
    of guilt when he began to direct Insys to dispose of the money by donating his
    speaking fees to various universities. Sufficient evidence supports the conviction
    on Count 17.
    5.    Count 19: Mail or Wire Fraud Conspiracy Against
    Couch and Ruan
    Count 19 charged the appellants with conspiring with Perhacs, Palmer, and
    Parker to commit mail or wire fraud in violation of 18 U.S.C. § 1349. To prove
    such a conspiracy, “the government need not demonstrate an agreement
    specifically to use the interstate wires to further the scheme to defraud.” United
    States v. Hasson, 
    333 F.3d 1264
    , 1270 (11th Cir. 2003). Instead, “it is enough to
    prove that the defendant knowingly and voluntarily agreed to participate in a
    66
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    scheme to defraud and that the use of the interstate wires in furtherance of the
    scheme was reasonably foreseeable.”
    Id. “A scheme
    to defraud requires proof of
    material misrepresentations, or the omission or concealment of material facts . . . .”
    Id. at 1270–71.
    The Superseding Indictment charged, and the government sought to prove at
    trial, that the appellants conspired to make three types of misrepresentations to
    insurers. The first misrepresentation was that they routinely billed BCBS for more
    expensive doctor visits when only a nurse practitioner saw the patient. As
    discussed in the previous section devoted to Count 15, the evidence was sufficient
    to convict the appellants of health care fraud conspiracy for these actions. And
    since the government established that PPSA submitted these bills electronically,
    the use of the mails or wires element is met. The second misrepresentation, also
    discussed in the section regarding Count 15 above, was that they lied to insurers
    about patients being diagnosed with cancer to induce those companies to pay for
    TIRF prescriptions. The jury saw that PPSA and the insurers sent forms and letters
    related to coverage via fax and mail. The third misrepresentation was that Ruan
    selected the most lucrative controlled substances to stock at PPSA’s workers’
    compensation dispensary, and then he and Couch prescribed those drugs, making
    their medical decisions based on profit, not the needs of patients. As discussed in
    the section devoted to Count 16 above, Manfuso testified that while he and Ruan
    67
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    frequently discussed the profit margin of various drugs for the formulary, Ruan
    never talked with him about the drugs’ clinical aspects. Because the evidence
    showed that these discussions occurred over email between Ruan in Alabama and
    Manfuso in Maryland, the element of the use of interstate mail in furtherance of the
    scheme was satisfied.
    6.    Count 1: RICO Conspiracy Against Couch and Ruan
    Count 1 charged the appellants with conspiring to violate RICO based on
    predicate acts of drug distribution and mail or wire fraud. To establish a conspiracy
    to violate RICO under 18 U.S.C. § 1962(d), “the government must prove that the
    defendants ‘objectively manifested, through words or actions, an agreement to
    participate in the conduct of the affairs of the enterprise through the commission of
    two or more predicate crimes.’” United States v. Starrett, 
    55 F.3d 1525
    , 1543 (11th
    Cir. 1995) (quoting United States v. Russo, 
    796 F.2d 1443
    , 1455 (11th Cir. 1986)).
    “A RICO conspiracy differs from an ordinary conspiracy in two respects: it need
    not embrace an overt act, and it is broader and may encompass a great variety of
    conduct.”
    Id. (quoting United
    States v. Pepe, 
    747 F.2d 632
    , 659 (11th Cir. 1984)).
    The appellants first contend that the jury could not have reasonably found
    that PPSA was a RICO “enterprise” because they operated it as separate medical
    practices at two different locations. We disagree. Ken Cross, the appellants’ former
    practice manager, testified that PPSA, as well as C&R, were legal entities jointly
    68
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    owned by the appellants. The RICO definition of an “enterprise” is broad,
    including “any individual, partnership, corporation, association, or other legal
    entity, and any union or group of individuals associated in fact although not a legal
    entity.” 18 U.S.C. § 1961(4). While Ruan and Couch generally saw their own
    patients and divided their income proportionate to revenues generated from
    patients that each treated, they also made financial and business decisions together,
    such as buying Galena stock with PPSA funds. Ruan also negotiated with IPM and
    CRM on behalf of himself and Couch to manage the PPSA workers’ compensation
    dispensary. They discussed practice-management issues, such as Palmer’s
    prescribing habits, via email, shared in the profits of C&R, and even worked at
    each other’s primary location once a week. The jury had abundant evidence to
    conclude that the appellants were members of an “enterprise” as RICO defines the
    term because not only were PPSA and C&R jointly owned but Ruan and Couch
    were also associated in fact.
    There was also sufficient evidence presented to establish the commission of
    two or more predicate crimes. As detailed in the previous sections, the jury
    reasonably concluded that the appellants committed least two of the 13 drug
    distribution and mail or wire fraud counts charged. We thus conclude that the jury
    reasonably determined that RICO’s predicate acts requirement was satisfied.
    7.    Counts 20, 21, and 22: Money Laundering Conspiracy
    and Substantive Money Laundering Against Ruan
    69
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    Count 20 charged Ruan with conspiring with Manfuso and others to commit
    money laundering in violation of 18 U.S.C. § 1956(h). “That section makes it a
    crime to conspire to commit money laundering in violation of 18 U.S.C. § 1956 or
    § 1957.” United States v. Moran, 
    778 F.3d 942
    , 962 (11th Cir. 2015). “Under §
    1956(h), ‘only two elements of conspiracy need be proven: (1) an agreement
    between two or more persons to commit a money-laundering offense; and (2)
    knowing and voluntary participation in that agreement by the defendant.’”
    Id. (quoting United
    States v. Broughton, 
    689 F.3d 1260
    , 1280 (11th Cir. 2012)). Here,
    the government alleged that the object of the 18 U.S.C. § 1956(h) conspiracy
    charged in Count 20 was 18 U.S.C. § 1957 money laundering. That section
    prohibits “knowingly engag[ing] or attempt[ing] to engage in a monetary
    transaction in criminally derived property of a value greater than $10,000 and is
    derived from specified unlawful activity.” 18 U.S.C. § 1957(a). Additionally,
    Counts 21 and 22 charged Ruan with substantive money laundering in violation of
    18 U.S.C. § 1957(a). For these counts, the “monetary transaction[s] in criminally
    derived property” were alleged to be Ruan’s purchase of two expensive
    automobiles. The “specified unlawful activity” underlying all three counts was
    alleged to be health care fraud conspiracy in violation of 18 U.S.C. § 1347(a),
    conspiracy to violate the Anti-Kickback statute in violation of 18 U.S.C. § 371, and
    conspiracy to distribute controlled substances in violation of 21 U.S.C. § 846.
    70
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    In support of these counts, evidence was submitted that Ruan had 23
    different bank accounts, some under his own name and others in the names of
    various companies he controlled, such as XLR Exotic Autos, LLC. Ruan received
    millions in profits from PPSA and C&R as well as speaker payments from Insys.
    Some of this money made its way into XLR Exotic Autos’ bank account. In
    August and September 2014, Ruan used Erin Bauer, his personal assistant, to
    arrange two car purchases for him. Ruan wired $124,355.87 from XLR Exotic
    Autos’ bank account to an auto dealer in Dallas to purchase a 2011 Audi R8
    Spyder. The following month, he wired $110,000 to a different dealer in San Diego
    as partial payment for a 1994 Lamborghini Diablo.
    Ruan asserts that there was insufficient evidence to convict him of
    conspiring to commit money laundering because PPSA and C&R had legitimate
    income and the purpose of purchasing the vehicles was not to funnel money back
    into a criminal venture. He relies largely on United States v. Miles, 
    360 F.3d 472
    (5th Cir. 2004), but that case is distinguishable because it involved money
    laundering promotion under 18 U.S.C. § 1956(a)(1)(A)(i), which criminalizes
    financial transactions involving funds that are derived from specified illegal
    activity, where the “transactions are intentionally aimed at promoting specified
    unlawful activity.”
    Id. at 476.
    Here, the object of the money laundering conspiracy
    was 18 U.S.C. § 1957(a), which the Fifth Circuit in Miles recognized is different: it
    71
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    allows prosecutions for the “mere expenditure of unlawfully obtained funds” as
    long as the expenditure is more than $10,000.
    Id. at 477–78
    (citing United States v.
    Brown, 
    186 F.3d 661
    , 670–71 (5th Cir. 1999) (explaining that in § 1957(a),
    “Congress established a $10,000 per transaction threshold for convictions for
    simply spending dirty money”)). This Court has similarly noted that because there
    is no need to establish the intent to conceal or promote, and in light of the $10,000
    threshold, 18 U.S.C. § 1957 “prohibits a wider range of activity than money
    ‘laundering,’ as traditionally understood.” 
    Moran, 778 F.3d at 963
    (quoting United
    States v. Wetherald, 
    636 F.3d 1315
    , 1325 n.2 (11th Cir. 2011)).
    Thus, all that was required of the government as to Counts 21 and 22 was to
    prove two elements: (1) Ruan knowingly engaged in a financial transaction greater
    than $10,000 and (2) at least $10,000 of that money came from a “specified
    unlawful activity.” Ruan argues that there was insufficient evidence that he used
    funds from specified unlawful activity to purchase the cars. But to the extent that
    Ruan is guilty of conspiracy to commit health care fraud, conspiracy to receive
    kickbacks, and distribution of controlled substances, his challenge to his money
    laundering convictions also fails. As detailed above, Ruan made millions from
    health care fraud and distribution of controlled substances. The government traced
    those proceeds to the XLR Exotic Autos bank account used to purchase the cars.
    No more was required.
    72
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    Having concluded that the evidence was sufficient to convict the appellants
    on all of the counts challenged, except Count 16, we now turn to the appellants’
    challenges to various evidentiary rulings at trial.
    B.     Evidentiary Challenges
    1.     Admission of PDMP Data
    The appellants challenge the government’s use of prescribing data pulled
    from Alabama’s PDMP and similar databases from Florida and Mississippi. The
    PDMP is a database of all controlled substance prescriptions dispensed—dispensed
    meaning that the patient actually receives the medication—in Alabama. The
    Alabama Department of Public Health (“ADPH”) maintains the PDMP database,
    and the government called state pharmacy director Nancy Bishop, who oversees
    the PDMP, to explain the system and offer the records.
    Alabama law established the PDMP to “materially assist state regulators and
    practitioners authorized to prescribe and dispense controlled substances in the
    prevention of diversion, abuse, and misuse of controlled substances prescription
    medication.” Ala. Code § 20-2-210; see also Miss. Code Ann. § 73-21-127; Fla.
    Stat. § 893.055(2)(a). Each doctor or pharmacist who dispenses controlled
    substances is required by law to report the following information to the PDMP
    database: the patient’s name, the prescriber’s name, the medication prescribed, the
    dosage amount, the quantity of medication dispensed, the date the provider wrote
    73
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    the prescription, and the date the pharmacy filled the prescription. Ala. Code § 20-
    2-213(d). Similarly, federal law requires pharmacies to keep copies of filled
    controlled substances prescriptions for at least two years. 21 C.F.R. § 1304.04(a),
    (h)(2), (h)(4); see 21 U.S.C. § 828.
    Access to the PDMP database is limited. Ala. Code § 20-2-214. Pharmacists
    and doctors can see information on their own dispensing and prescribing as well as
    their patients’ information; state and local law enforcement may access the
    database for investigation; and federal law enforcement may do so on a showing of
    probable cause. Additionally, data may be shared with other states’ monitoring
    programs.
    Bishop explained that pharmacists enter the prescription information into the
    database either directly or via software that automatically transmits it to the PDMP
    as they dispense the medication. The ADPH includes a disclaimer on each page of
    the printed PDMP report stating that it “does not warrant the above information to
    be accurate or complete” because the report is “based on the search criteria and the
    data provided by the dispensing entities.” Addressing this disclaimer, Bishop
    agreed that she could not guarantee that each pharmacist input the data correctly.
    But she testified that doctors and pharmacists throughout the state access the
    database on a daily basis. The appellants themselves accessed it in their practice.
    74
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    Bishop described the PDMP as a “tool for the prescribers and the dispensers to use
    to make the best clinical decision for their patient.”
    Bishop queried the database for all controlled substance prescriptions written
    by the appellants from January 2011 through May 2015 and for the top prescribers
    of Abstral and Subsys in the state. The PDMP data was also used to create the
    summary exhibits showing the number of the appellants’ patients receiving certain
    other drugs, the percentage of prescriptions by drug schedule, the number of
    prescriptions written on dates the appellants were out of the office, and their
    prescribing of various drugs over time.
    At trial, the appellants objected to the admission of the PDMP data on the
    grounds that it contained multiple levels of hearsay and violated their
    Confrontation Clause rights because it was based on testimonial evidence. The
    district court overruled those objections. The appellants reassert those arguments
    on appeal.
    i.     Hearsay
    We address the appellants’ hearsay objections first. This Court reviews
    evidentiary rulings for abuse of discretion. See United States v. Todd, 
    108 F.3d 1329
    , 1331 (11th Cir. 1997). Hearsay is an out of court statement offered for its
    truth. Fed. R. Evid. 801(c). Hearsay is inadmissible unless it falls within an
    enumerated exception. Fed. R. Evid. 802. When evidence contains multiple levels
    75
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    of hearsay, each statement must meet a hearsay exception to be admissible. Fed. R.
    Evid. 805.
    The appellants argue that the PDMP reports contain three types of out of
    court “statements” that were offered for their truth: (1) the prescriptions written by
    doctors for controlled substances, which are transmitted to pharmacies; (2) the
    information about the prescriptions that the dispensing pharmacists put into the
    PDMP database; and (3) the reports that PDMP users can create from the data.
    However, the prescriptions that were written by Ruan and Couch—or in some
    cases Palmer, a co-conspirator—are not hearsay because they constitute an
    opposing party’s statement. See Fed. R. Evid. 801(d)(2)(D) & (E). Additionally,
    the PDMP reports themselves are not hearsay because they are a “data
    compilation” pursuant to Federal Rule of Evidence 803(6). See United States v.
    Glasser, 
    773 F.2d 1553
    , 1558–59 (11th Cir. 1985) (computer printouts containing
    compilations of various mortgage account transactions which were the basis of the
    prosecution are admissible under the business records exception); United States v.
    Fujii, 
    301 F.3d 535
    , 539 (7th Cir. 2002) (“Computer data compiled and presented
    in computer printouts prepared specifically for trial is admissible under Rule
    803(6), even though the printouts themselves are not kept in the ordinary course of
    business.”); United States v. Arias-Izquierdo, 
    449 F.3d 1168
    , 1184 (11th Cir. 2006)
    76
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    (citing Fujii for the proposition that a mere printout of “electronically stored
    information” is not an additional statement for hearsay purposes). 17
    That leaves the pharmacists’ statements that they filled the prescriptions
    written by the doctors. We agree with the district court that these statements are the
    business records of the reporting pharmacies and are thus admissible under the
    business records exception to the hearsay rule. See Fed. R. Evid. 803(6). The
    business records exception provides, in pertinent part:
    A record of an act, event, condition, opinion, or diagnosis [is
    admissible] if:
    (A) the record was made at or near the time by—or from information
    transmitted by—someone with knowledge;
    (B) the record was kept in the course of a regularly conducted activity
    of a business, organization, occupation, or calling, whether or not for
    profit;
    (C) making the record was a regular practice of that activity;
    (D) all these conditions are shown by the testimony of the custodian or
    another qualified witness, or by a certification that complies with Rule
    902(11) or (12) or with a statute permitting certification; and
    (E) the opponent does not show that the source of information or the
    method or circumstances of preparation indicate a lack of
    trustworthiness.
    17
    Rule 803(6), as amended effective December 1, 2011, no longer lists a “data
    compilation” as an example of a business record. See Fed. R. Evid. 803(6). The December 1,
    2011, amendments to the Federal Rules of Evidence were stylistic changes to simplify the rule
    language, with “no intent to change any result in any ruling on evidence admissibility.” Fed. R.
    Evid. 803 advisory committee’s notes 2011 Amendments. Thus, case law construing former Rule
    803(6) remains viable and is applicable here. And, Rule 101(b)(4) defines “record” as including
    a “data compilation.” Fed. R. Evid. 101(b)(4).
    77
    Case: 17-12653     Date Filed: 07/10/2020   Page: 78 of 137
    Fed. R. Evid. 803(6). This Court has recognized that “[t]he touchstone of
    admissibility under the business records exception to the hearsay rule is reliability,
    and a trial judge has broad discretion to determine the admissibility of such
    evidence.” United States v. Bueno-Sierra, 
    99 F.3d 375
    , 378 (11th Cir. 1996) (per
    curiam).
    The appellants argue that the requirement found in subsection (D) of the
    business records exception is not met because the custodian of the records—
    Bishop, an ADPH employee—did not actually enter any data into the PDMP and
    admitted that she could not vouch for the data’s reliability. They contend that the
    government should have offered witnesses from each of the pharmacies across
    Alabama, Florida, and Mississippi who actually entered prescription data into the
    database. But this Court has held that “the proponent of a document ordinarily
    need not be the entity whose first-hand knowledge was the basis of the facts sought
    to be proved.” 
    Bueno-Sierra, 99 F.3d at 379
    . The proponent must merely “establish
    that it was the business practice of the recording entity to obtain such information
    from persons with personal knowledge and the business practice of the proponent
    to maintain the records produced by the recording entity.”
    Id. We are
    satisfied that
    Bishop did that here. She testified that the pharmacists, who have knowledge of the
    prescriptions, enter the data in the database at the same time they dispense the
    controlled substances. Thus, subsection (A)’s requirement that “the record[s were]
    78
    Case: 17-12653     Date Filed: 07/10/2020     Page: 79 of 137
    made at or near the time by—or from information transmitted by—someone with
    knowledge,” is met. Bishop further explained that federal law and regulations
    require keeping prescription records, and state law requires submitting the data to
    the PDMP. This makes keeping the records part of the pharmacies’ “regularly
    conducted activity” as well as a “regular practice” of their business, as required by
    subsections (B) and (C) of the business records exception. See also United States v.
    Towns, 
    718 F.3d 404
    , 407–10 (5th Cir. 2013) (finding that logs and records a
    business keeps because it is required to do so by state or federal regulations meet
    this standard). Bishop further testified that the ADPH considered the PDMP
    reports its “business records” and relies on the records through its “daily”
    assistance to doctors and pharmacists in accessing the database as “a tool for the
    prescribers and the dispensers . . . to make the best clinical decision for their
    patient.” She thus established that it was the ADPH’s “business practice” to obtain
    and maintain the records. See 
    Bueno-Sierra, 99 F.3d at 379
    .
    Finally, the PDMP report itself does not lack trustworthiness under
    subsection (E). The appellants point to the disclaimer the ADPH lists on each page
    of the report stating that it “does not warrant the above information to be accurate
    or complete” because the report is “based on the search criteria and the data
    provided by the dispensing entities.” While we understand that the prescription
    data is only as reliable as the individual putting it into the system, pharmacists have
    79
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    every incentive to ensure the data they enter is accurate. Inaccurate data could lead
    to dangerous drug interactions and overdoses as well as giving drugs to addicts or
    to those who might sell them on a secondary market. Doctors and pharmacists use
    the system every day to look up patients’ medication histories. The appellants
    themselves accessed it thousands of times in their practice. The appellants have
    failed to demonstrate the untrustworthiness of the pharmacists’ out of court
    statements that they filled the prescriptions reported in the PDMP.
    Because the PDMP reports comprised records of regularly conducted
    activity made by persons with knowledge whose job duties entailed making those
    records, and Bishop, as custodian, certified that information and there was no
    evidence of untrustworthiness, we find that the district court properly admitted the
    PDMP data under the business records exception to the hearsay rule. 18
    ii.     Confrontation Clause
    We now turn to the appellants’ claim that the admission of the PDMP data
    violated their Sixth Amendment rights under the Confrontation Clause.19 A
    defendant’s claim that an evidentiary ruling deprived him of a constitutional right
    is reviewed de novo. 
    Ignasiak, 667 F.3d at 1227
    . “In Crawford v. Washington[, 541
    18
    We need not address the government’s arguments that the PDMP data was also
    admissible under the public records and residual exceptions to the hearsay rule. See Fed. R. Evid.
    803(8) & 807.
    19
    A criminal defendant has the right “to be confronted with the witnesses against him.”
    U.S. Const. amend.VI.
    80
    Case: 17-12653     Date Filed: 07/10/2020    Page: 81 of 
    137 U.S. 36
    , 53–54 (2004)], the Supreme Court held that the Confrontation Clause bars
    the admission of the testimonial statements of a witness who did not appear at trial
    unless the witness was unavailable and the defendant had a prior opportunity to
    cross-examine him or her.” United States v. Caraballo, 
    595 F.3d 1214
    , 1227 (11th
    Cir. 2010). “Testimonial statements are ones ‘that declarants would reasonably
    expect to be used prosecutorially.’” United States v. Wilson, 
    788 F.3d 1298
    , 1316
    (11th Cir. 2015) (quoting 
    Crawford, 541 U.S. at 51
    ). The appellants contend the
    reports are “testimonial” because the PDMP may assist law enforcement in
    prosecuting violators of controlled substance laws.
    We disagree for several reasons. First, a statement is testimonial when its
    “primary purpose . . . is to establish or prove past events potentially relevant to
    later criminal prosecution,” Davis v. Washington, 
    547 U.S. 813
    , 822 (2006), and
    when the statement is “formal,” akin to “affidavits, depositions, prior testimony, or
    confessions,” 
    Caraballo, 595 F.3d at 1228
    (internal quotation marks omitted). On
    the other hand, “[c]ertain statements ‘by their nature [are] not testimonial—for
    example, business records or statements in furtherance of a conspiracy.’” 
    Wilson, 788 F.3d at 1316
    (quoting Crawford, 541 U.S at 56). Because the PDMP reports
    are business records as explained above, they are not testimonial and do not violate
    the Confrontation Clause. See United States v. Naranjo, 
    634 F.3d 1198
    , 1213–14
    (11th Cir. 2011) (bank records and checks not testimonial).
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    Second, even if the reports were not business records, they are nonetheless
    not testimonial. Pharmacists are required by law to enter the PDMP data for the
    primary purpose of aiding physicians in treating patients, such as combating
    addiction. See Ala. Code §§ 20-2-210, 213(d). In United States v. Barker, the Fifth
    Circuit found a nurse’s report about a sexual assault non-testimonial, even though
    she knew at the time she wrote it that it would be given to police and could be used
    in a prosecution, because her primary purpose in writing the report was to
    “medically evaluate and treat” the victim. 
    820 F.3d 167
    , 171–72 (5th Cir. 2016).
    Similarly, here, the fact that the pharmacists may be aware when they input the
    data that law enforcement also has access to the database if needed during an
    investigation does not transform the data entry into the type of formal statement
    required for testimonial evidence. The district court’s admission of the PDMP data
    did not violate the appellants’ Confrontation Clause rights.
    2.    Exclusion of Other Evidence
    Next, the appellants argue that the district court erroneously excluded three
    additional categories of evidence: (1) information about patients who received
    legitimate medical care by Ruan and Couch (hereinafter “good patient” evidence);
    (2) relatedly, videos of undercover agents posing as patients attempting to obtain
    opioids from Ruan and being denied; and (3) the testimony of Debi Phillips
    (“Phillips”), PPSA’s former operations manager, on various issues. Rather than
    82
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    contend that the district court abused its discretion in deeming this evidence
    irrelevant under Federal Rule of Evidence 401,20 the appellants argue that its
    exclusion violated their Fifth and Sixth Amendment rights to present a complete
    defense. 21
    “Whether the exclusion of evidence violated a constitutional guarantee is a
    legal question reviewed de novo.” United States v. Sarras, 
    575 F.3d 1191
    , 1209
    n.24 (11th Cir. 2009). “[T]he Constitution guarantees criminal defendants a
    meaningful opportunity to present a complete defense.” United States v. Mitrovic,
    
    890 F.3d 1217
    , 1221 (11th Cir. 2018) (quoting Nevada v. Jackson, 
    569 U.S. 505
    ,
    509 (2013)). However, this Court has recognized that this right “is not absolute,
    and is subject to reasonable restrictions.”
    Id. (citing United
    States v. Scheffer, 
    523 U.S. 303
    , 308 (1998)). “[S]tate and federal rulemakers have broad latitude under
    the Constitution to establish rules excluding evidence from criminal trials. Such
    rules do not abridge an accused’s right to present a defense so long as they are not
    ‘arbitrary’ or ‘disproportionate to the purposes they are designed to serve.’”
    Id. (quoting Scheffer,
    523 U.S. at 308). Indeed, the “trial judge’s role as gatekeeper is
    20
    See 
    Todd, 108 F.3d at 1331
    (a district court’s evidentiary rulings are reviewed for an
    abuse of discretion).
    21
    The Sixth Amendment to the United States Constitution guarantees defendants the right
    to have “compulsory process for obtaining witnesses in his favor.” U.S. Const. amend. VI; see
    also United States v. Ramos, 
    933 F.2d 968
    , 974 (11th Cir. 1991) (“A criminal defendant’s right
    to present witnesses in his own defense during a criminal trial lies at the core of the fifth and
    fourteenth amendment guarantees of due process.”).
    83
    Case: 17-12653     Date Filed: 07/10/2020    Page: 84 of 137
    to ensure that the factfinder bases its decision only on relevant and reliable
    information.”
    Id. at 1222
    (citing United States v. Frazier, 
    387 F.3d 1244
    , 1272
    (11th Cir. 2004)). Thus, “[w]hile a criminal defendant must be given every
    meaningful opportunity to present a complete defense, in doing so he must comply
    with the procedural and evidentiary rules designed to facilitate a search for the
    truth.”
    Id. (quoting Frazier,
    387 F.3d at 1272).
    The appellants rely largely on United States v. Hurn, 
    368 F.3d 1359
    (11th
    Cir. 2004), for their position that, even if a particular rule of evidence would
    normally bar the admission of certain evidence, there may sometimes be
    compelling reasons to grant an exception to evidentiary rules. See
    id. at 1363
    n.2
    (“[T]he fact that a particular rule of evidence requires the exclusion of certain
    evidence is not dispositive, as particular applications of a generally valid rule may
    unconstitutionally deny a defendant his rights under the Compulsory Process or
    Due Process Clauses.”). In Hurn, this Court pointed to four circumstances in which
    a district court’s exclusion of a criminal defendant’s evidence might violate the
    Constitution:
    First, a defendant must generally be permitted to introduce evidence
    directly pertaining to any of the actual elements of the charged offense
    or an affirmative defense. Second, a defendant must generally be
    permitted to introduce evidence pertaining to collateral matters that,
    through a reasonable chain of inferences, could make the existence of
    one or more of the elements of the charged offense or an affirmative
    defense more or less certain. Third, a defendant generally has the right
    to introduce evidence that is not itself tied to any of the elements of the
    84
    Case: 17-12653     Date Filed: 07/10/2020    Page: 85 of 137
    crime or affirmative defense, but that could have a substantial impact
    on the credibility of an important government witness. Finally, a
    defendant must generally be permitted to introduce evidence that, while
    not directly or indirectly relevant to any of the elements of the charged
    events, nevertheless tends to place the story presented by the
    prosecution in a significantly different light, such that a reasonable jury
    might receive it differently.
    Id. at 1363
    (footnotes omitted). The Court explained that two considerations are
    appropriate in analyzing a defendant’s claim that his constitutional right to present
    a defense was violated: (1) whether the right was actually violated, and (2) if so,
    whether that error was harmless beyond a reasonable doubt.
    Id. at 1362–63.
    Keeping these principles in mind, we address each of the appellants’
    categories of excluded evidence in turn.
    i.     “Good Patient” Evidence and Undercover Videos
    The government’s case against the appellants was built upon several dozen
    PPSA patients whose treatment was alleged to be illegal out of the roughly 8,000
    patients PPSA had in 2015. Specifically, the government presented live testimony
    of 14 patients—or family members of deceased patients—who criticized the
    appellants’ prescription of opioids and other medications to them. The government
    also created a list of the appellants’ “top 28” patients who received Subsys or
    Abstral and whose medical records did not indicate a diagnosis of cancer. Experts
    reviewed these patients’ files and gave their opinions that Ruan and Couch’s care
    of these patients did not meet minimum standards.
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    Case: 17-12653        Date Filed: 07/10/2020      Page: 86 of 137
    The appellants wished to present evidence about patients not identified by
    the government and whose treatment was not alleged to be illegal. These “good
    patients” would have testified about how their quality of life improved through the
    care they received at PPSA. The district court concluded that this evidence was
    irrelevant and would waste time in an already lengthy trial because the government
    did not allege that PPSA was entirely a sham practice or that all of the appellants’
    prescriptions were illegal. 22 The appellants could, however, put on evidence
    favorable to them from any patients identified or called by the government in its
    case in chief. Indeed, Couch called five patients and Ruan called three.
    The appellants argue that the district court impaired their right to present a
    complete defense by excluding this “good patient” evidence, particularly the
    testimony of Michael Tiller, one of Couch’s patients. Tiller intended to testify that
    he believed that Subsys was beneficial to him, despite the off-label use; he
    generally approved of Couch’s treatment of him and trusted him as his physician;
    and his experiences at PPSA were consistent with his experiences at other
    22
    Federal Rule of Evidence 401 defines relevant evidence as that which “has any tendency
    to make a fact [of consequence] more or less probable than it would be without the evidence.”
    Even if evidence is relevant, Rule 403 nonetheless vests district courts with wide discretion to
    exclude evidence if “its probative value is substantially outweighed by a danger of . . . unfair
    prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly
    presenting cumulative evidence.”
    86
    Case: 17-12653       Date Filed: 07/10/2020       Page: 87 of 137
    physicians’ facilities. 23 The appellants contend that Tiller’s proposed testimony
    satisfies the first, second, and fourth categories of evidence summarized in Hurn.
    The first Hurn circumstance is implicated when evidence is excluded that
    directly pertains to a formal element of a charged offense. 
    See 368 F.3d at 1363
    .
    The appellants contend that Tiller’s testimony would have helped disprove Counts
    2, 3, and 4—conspiracies to knowingly or intentionally prescribe controlled
    substances outside the usual course of professional practice or without a legitimate
    medical purpose. We disagree. The appellants were not charged with illegally
    prescribing medicine to all their patients, and the jury was aware that they had
    thousands of patients to whom they may have provided legitimate care. However, a
    finding that even one prescription was illegal—or for the RICO count, at least two
    acts of racketeering activity—sufficed to convict for the Controlled Substances Act
    violations. Thus, whether Tiller approved of his treatment by Couch does not
    “directly pertain” to whether the appellants’ treatment of the many other patients
    identified by the government was outside the course of professional practice. See
    
    Hurn, 368 F.3d at 1363
    .
    The second category of Hurn evidence is that which, though not directly
    bearing on an element of the offense charged, tends to prove collateral matters
    23
    Couch submitted a written proffer to the district court regarding only Tiller’s proposed
    testimony but contends that he would have called additional “good patients” if the court had
    permitted him to do so.
    87
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    relating to the defense. 
    See 368 F.3d at 1364
    . The appellants argue that Tiller’s
    testimony would have tended to prove that Couch was operating a legitimate
    practice, a collateral matter. In discussing this category, the Hurn court addressed
    the introduction of evidence that tends to negate the mens rea of an offense.
    Id. at 1364–65.
    Hurn cited as an example United States v. Sheffield, 
    992 F.2d 1164
    (11th
    Cir. 1993), in which the defendant, an Air Force employee, was convicted of
    embezzling Air Force property by ordering subordinates to make fishing lures with
    base property and on government time.
    Id. at 1165.
    This Court held that evidence
    should have been admitted of a legitimate custom on an Air Force base of making
    retirement presents for high-ranking officials using base materials because it would
    have rebutted the mens rea element of the offense of embezzlement.
    Id. If the
    defendant was acting pursuant to a legitimate custom when he ordered the
    production of the lures, he did not possess the state of mind necessary for the
    offense of embezzlement.
    Id. at 1170.
    Here, however, Tiller’s testimony does not tend to negate the mens rea
    element of the Controlled Substances Act offenses— knowingly or intentionally
    prescribing controlled substances outside the usual course of professional practice
    or without a legitimate medical purpose. Nowhere did the government allege that
    Couch’s treatment of Tiller was outside the usual course of professional practice,
    and nothing Tiller would have testified about would have been probative of
    88
    Case: 17-12653     Date Filed: 07/10/2020    Page: 89 of 137
    Couch’s actions towards the patients that the government asserted were provided
    with illegal prescriptions, like Officer Kelley, who received powerful opioids from
    Couch after only a cursory visit with him and without a showing of medical need.
    Nor have the appellants established that the fourth type of evidence in Hurn
    is implicated in this case—that which “complete[s] the picture” of the charged
    crimes and presents the government’s evidence in a more favorable or different
    light that might influence a reasonable juror. 
    See 368 F.3d at 1367
    . This
    circumstance recognizes that defendants have a right to combat “the government’s
    selective presentation of entirely truthful evidence [that] cast[s] a defendant in an
    inaccurate, unfavorable light” or that makes “entirely legitimate, normal, or
    accepted acts appear unusual or suspicious.”
    Id. at 1366–67.
    The Hurn court held
    that a defendant should be allowed “to introduce additional evidence to dispel this
    unjustified taint, even if that evidence does not directly or indirectly bear on a
    particular element of an offense.”
    Id. at 1367.
    For instance, in 
    Todd, 108 F.3d at 1333
    , the defendant was convicted of embezzling from his company’s employee
    retirement fund plan. The government used evidence that the defendant and his
    family members who worked at the company all received extremely high salaries
    to prove the defendant’s greed and motive to steal.
    Id. This Court
    reversed the
    defendant’s conviction because he was not permitted to introduce evidence that all
    employees who worked at his company, not just his family members, received
    89
    Case: 17-12653     Date Filed: 07/10/2020   Page: 90 of 137
    large salaries and benefits.
    Id. at 1334.
    Such evidence would have “complete[d] the
    picture,” see 
    Hurn, 368 F.3d at 1367
    , by putting “a different spin” on the
    defendant’s intent, see 
    Todd, 108 F.3d at 1334
    . Similarly in Sheffield, this Court
    noted that the retirement gift evidence, aside from being probative of the
    defendant’s intent or lack thereof to embezzle, also should have been admitted to
    “put the charges against Mr. Sheffield in context, ‘to complete the story of the
    crime on 
    trial.’” 992 F.2d at 1170
    (quoting United States v. Mills, 
    704 F.2d 1553
    ,
    1559 (11th Cir. 1983)).
    But here, the “good patient” evidence was not necessary to “complete the
    picture,” because it was undisputed that the appellants treated thousands of patients
    and there was no allegation that they mistreated them all. Indeed, the government
    told the jury in its opening:
    [T]here were definitely some [patients] that were treated very
    appropriately in this office. There is no question about that, that there
    were certainly instances where Dr. Ruan and Dr. Couch did a really
    good job for their patients. We’re not here because of that. We’re here
    for the times that they were prescribing these drugs outside the usual
    course of professional practice.
    The admonition was repeated in closing: “By and large their patients were
    legitimate patients. And I told you right from the very start and it has always been
    our contention that a majority of the patients that went there had legitimate pain
    needs and were in need of legitimate pain treatment.” Thus, there was no need to
    dispel the “taint” that PPSA was a sham practice. PPSA only accepted patients
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    Case: 17-12653    Date Filed: 07/10/2020    Page: 91 of 137
    with insurance and refused patients paying cash. Diagnostic tools such as nerve
    conduction tests, fluoroscopes, electromyographs, and MRIs were frequently used
    to discover the source of patient pain. Ken Cross, PPSA’s former manager and a
    government witness, described PPSA in 2014 as “one of the best, well-rounded
    pain centers in this area.” In sum, Tiller’s testimony “was not necessary to correct
    any misleading impressions that may have been created by the government’s
    evidence.” See 
    Hurn, 368 F.3d at 1367
    .
    For the same reasons, Ruan was not prejudiced by the district court’s
    exclusion of undercover videos of DEA agents acting as “patients” seeking opioids
    from him but being denied. As noted, the government introduced videos at trial
    from Officer Kelley’s appointments with Couch at PPSA, which comprised Counts
    5–7 against him for illegal drug distribution. The DEA had also sent two
    undercover patients to see Ruan, but neither received opioid prescriptions. A nurse
    practitioner examined each patient, and each was then seen by Ruan, who told
    them that it was not appropriate to prescribe controlled substances because of
    better alternatives. One was referred for surgery, and the other given an anti-
    inflammatory ointment. At a pretrial conference, the government successfully
    moved to prevent Ruan from introducing these videos at trial. Akin to Tiller’s
    testimony, these videos do not refute the inculpatory evidence against Ruan
    demonstrating that at other times, Ruan did prescribe opioids to patients outside the
    91
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    usual course of professional practice or without a legitimate medical purpose, such
    as in the four patient files reviewed by Dr. Greenberg comprising Counts 8, 9, 11,
    and 12.
    Before concluding that there was no theory under which the appellants’
    constitutional rights were violated by the district court’s evidentiary rulings, we
    emphasize that we have carefully considered the appellants’ contention that the
    government’s closing arguments compounded the prejudice they suffered from the
    inability to present “good patient” evidence. Specifically, the appellants point to
    three statements made by the prosecutor in rebuttal closing: “The defendants had
    the same subpoena power as the United States of America. That means they can
    subpoena anybody they want to come in this courtroom, just like the United States
    can.”; “The[ appellants] could call anybody they wanted to in connection with this
    case.”; and later, “We called for you 14 patients in comparison to the few patients
    the defense called . . . .”. The appellants contend that these statements implied that
    Ruan and Couch could not find witnesses who benefitted from their treatment to
    rebut the many witnesses that testified for the government, even though the
    government had obtained a motion in limine prohibiting evidence of “good
    patients.” They raised this issue in their motion for a new trial, which the district
    court denied.
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    However, when viewed in context, at least the first two statements are not
    as egregious as they first appear. The prosecutor was not discussing the ability of
    the appellants to call patient-witnesses in their favor but was instead addressing the
    adequacy of the government’s own charts, specifically the appellants’ ability to
    call statisticians or other experts to critique those charts:
    Now, both attorneys told you that all this is is [sic] numbers, that the
    government just put up all these charts, pie charts, picture charts. The
    defendants had the same subpoena power as the United States of
    America. That means they can subpoena anybody they want to come in
    this courtroom, just like the United States can. If those charts aren’t
    accurate, if those charts weren’t what was happening, don’t you think
    they would have brought you somebody to tell you that this chart is not
    right?
    This isn’t what the facts showed. This isn’t what the numbers are. And
    they want to tell you that numbers don’t mean anything. But numbers
    control. You can’t wait to be 16. You can’t wait to be 21, you can’t wait
    to make a 100 on a test. Most everything we do has to do with numbers.
    And if these numbers weren’t correct, these charts weren’t correct,
    they’d be the first one to show you and tell you with evidence and with
    witnesses.
    In connection with that, they could also have called doctors who would
    have said that they referred people to these doctors. That didn’t happen.
    They could call anybody they wanted to call in connection with this
    case.
    The third remark, however, gives us pause. The prosecutor argued that “[i]t doesn’t
    have to be 50, it doesn’t have to be 1000” inappropriate prescriptions; one
    prescription outside the usual course of professional practice “is breaking the law.”
    She then recounted several of the patients the government had called and, in
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    transitioning to discuss one called by the defense, commented that “[w]e called for
    you 14 patients in comparison to the few patients the defense called.” This
    statement is troubling because the government knew that the appellants were
    prevented from having patients testify that their quality of life had improved
    through care received by Ruan and Couch.
    “[A] prosecutor must refrain from improper methods calculated to produce a
    wrongful conviction.” United States v. Rodriguez, 
    765 F.2d 1546
    , 1559 (11th Cir.
    1985). For example, a prosecutor may not make “improper suggestions,
    insinuations and assertions calculated to mislead the jury.”
    Id. (quoting United
    States v. Phillips, 
    664 F.2d 971
    , 1030 (5th Cir. Unit B 1981)). To establish
    prosecutorial misconduct, a defendant must establish that the remarks were
    improper and that they prejudicially affected his substantial rights. United States v.
    Lopez, 
    590 F.3d 1238
    , 1256 (11th Cir. 2009). “A defendant’s substantial rights are
    prejudicially affected when a reasonable probability arises that, but for the
    remarks, the outcome of the trial would have been different. When the record
    contains sufficient independent evidence of guilt, any error is harmless.”
    Id. (quoting United
    States v. Eckhardt, 
    466 F.3d 938
    , 947 (11th Cir. 2006)). In
    determining whether a prosecutor’s remarks had a reasonable probability of
    changing the trial’s outcome, this Court may look to:
    (1) the degree to which the challenged remarks have a tendency to
    mislead the jury and to prejudice the accused;
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    (2) whether they are isolated or extensive;
    (3) whether they were deliberately or accidentally placed before the
    jury; and
    (4) the strength of the competent proof to establish the guilt of the
    accused.
    Id. (quoting Davis
    v. Zant, 
    36 F.3d 1538
    , 1546 (11th Cir. 1994)).
    The prosecutor’s remarks were improper, but when examined in the context
    of the entire trial, the appellants cannot show that the remarks prejudiced them. As
    mentioned, the jury knew that the appellants treated thousands of patients and were
    not alleged to have mistreated them all. The three remarks were a minor portion of
    lengthy closing arguments in a lengthy trial, and the evidence of the appellants’
    guilt for violating the Controlled Substances Act was substantial. Additionally, the
    district court repeatedly instructed the jury that the attorneys’ arguments were not
    evidence. See 
    Rodriguez, 765 F.2d at 1560
    (curative instructions considered in
    determining prejudice from prosecutorial misconduct). For all of these reasons, we
    conclude that the district court’s exclusion of “good patient” evidence did not
    violate the appellants’ constitutional right to present a complete defense.
    ii.    Phillips’s Testimony
    The appellants also argue that three separate limitations placed on the
    testimony of PPSA’s former operations manager, Phillips, violated their rights to
    present a complete defense. First, the government put on evidence that PPSA’s
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    electronic medical records frequently contained descriptions of physical
    examinations conducted by the doctors that never actually happened. The
    government often asked the PPSA patients that it called to testify about having a
    light shown in their eyes or having their thyroid checked, with the patients saying it
    did not happen, despite the medical record purportedly showing otherwise. To
    rebut this evidence, the appellants called Phillips to explain PPSA’s billing practice
    and operations. She testified that the electronic records system PPSA used relied
    on templates to pre-populate office visit notes with exams performed, even if the
    exams were not actually performed. Using a sample patient file that Phillips did
    not actually work on, Couch asked her to explain how a biller at the office would
    have reviewed the doctor’s notes for an office visit to determine that the bill had
    been coded correctly for submission to insurance companies. Because Phillips did
    not prepare the bill for the patient, she was permitted to explain only “what was
    generally looked at.” Phillips nonetheless testified at length, explaining that a biller
    typically reviewed the recorded “chief complaint, history of present illness, review
    of systems,” and diagnostic code. But when Couch sought to ask her about a
    specific physical exam listed in the sample bill, the court concluded that she lacked
    personal knowledge. The appellants say that if allowed, Phillips would have
    explained that these pre-populated fields were not used to select the billing level
    that PPSA submitted to insurers, and they submitted a proffer to that extent.
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    The appellants contend that this evidence triggers the second Hurn factor,
    collateral evidence relative to proving a defense, 
    see 368 F.3d at 1367
    , because it
    rebuts the government’s evidence suggesting that the appellants committed fraud
    by listing unnecessary or unperformed examinations in order to increase billing
    revenue. We find no prejudice because the government successfully proved health
    care and mail or wire fraud through other illegal acts unrelated to Phillips’s
    testimony about billing codes, such as that PPSA falsely certified to insurers that
    some patients had cancer so that the insurers would pay for their TIRF
    prescriptions, and that PPSA improperly billed BCBS for office visits conducted
    by nurse practitioners using Couch’s physician identification number. We thus find
    that the excluded evidence could not have affected the trial’s outcome.
    The second limitation on Phillips’s testimony that the appellants challenge
    occurred after the government cross-examined her about PPSA’s practice of billing
    insurers for visits conducted by physicians when only Palmer saw patients. Phillips
    testified that Palmer was in collaboration with Couch. On redirect examination,
    Couch sought to ask Phillips whether “there [is] guidance out there on billing for a
    practice when a nurse practitioner and a doctor bill in collaboration?” The
    government objected that the question was too general to elicit a relevant answer
    and reminded the court that BCBS had different requirements than other insurers.
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    The court sustained the objection, and Couch did not rephrase the question in a
    more specific way.
    The appellants contend that Phillips would have testified that she consulted
    the Alabama Board of Medical Examiners’ guidance and was satisfied that PPSA’s
    collaborative practice followed the relevant guidelines, and they submitted a
    proffer to that effect. According to the appellants, evidence that Phillips made
    efforts to ensure that the doctors’ collaborative practice was compliant with the law
    would negate any intent to defraud health care companies by billing for services
    performed by nurse practitioners. Thus, they contend the exclusion of this
    testimony was error under the first Hurn category because it would disprove one of
    the elements of health care and mail or wire fraud charged in Counts 15 and 19: the
    intent to defraud.
    We again disagree. The specific charge was that the appellants violated a
    policy specific to BCBS requiring doctors to actually see patients before using the
    higher billing number. Neither the Alabama Board of Medical Examiners’
    guidance on collaborative practice nor the fact that other insurers may not have had
    that same policy was relevant to the charge.
    The third limitation on Phillips’s testimony challenged by the appellants
    occurred as she was recalling Officer Kelley’s first undercover visit to PPSA, when
    he was turned away because he did not have insurance until his “referring
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    chiropractor,” Dr. Wetzel, who was working with the DEA, made a call to PPSA
    requesting that they make an exception for a cash-only patient. Phillips testified
    that she overheard PPSA’s new patient coordinator, Shannon Hackworth, speaking
    with Dr. Wetzel and that Hackworth was “upset” and “crying.” Phillips then spoke
    to Dr. Wetzel for a few minutes, after which Officer Kelley was permitted to keep
    his appointment and pay cash “only for that visit.” The district court sustained the
    government’s hearsay objection regarding what Dr. Wetzel told Phillips,
    explaining that it was “already in that [PPSA] accepted him . . . because of Dr.
    Wetzel’s insistence . . . [T]here’s nothing else that’s relevant.” Couch then
    attempted to elicit from Phillips that Dr. Wetzel was angry, made comments that
    Phillips perceived as threats, and vouched for his “patient” Officer Kelley by
    saying that he was a business owner and had sufficient funds to pay for his visit.
    However, the district court sustained the government’s objection to relevance,
    finding that Couch was not charged with giving Officer Kelley an appointment but
    with illegally prescribing him controlled substances.
    The appellants argue that Phillips’s testimony would have placed Officer
    Kelley’s first visit in a different light and completed the picture for the jury, see
    
    Hurn, 368 F.3d at 1363
    , by explaining why Phillips decided to allow a cash-only
    patient into PPSA—she felt pressured by Dr. Wetzel’s allegedly threatening call.
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    However, we don’t see an error of constitutional magnitude here. The fact
    that Dr. Wetzel’s call precipitated Officer Kelley’s admittance to the practice had
    been established during Officer Kelley’s own testimony and was not in dispute.
    There was no evidence that either Palmer or Couch knew about the call, and thus it
    could not have affected their decisions to prescribe Officer Kelley drugs that he did
    not need. In other words, information that Phillips felt threatened by Dr. Wetzel’s
    insistence that PPSA take Officer Kelley in would have not given the jury a reason
    to acquit Couch of the charges related to his conduct during Officer Kelley’s visits.
    3.     Expert Testimony
    The appellants also argue that government expert Dr. Aultman was not
    qualified to give her opinions, and that the district court improperly limited their
    cross-examination of her. The district court overruled these objections at trial. A
    district court’s decisions regarding the admissibility of expert testimony will not be
    set aside unless we determine that the court abused its discretion. 
    Frazier, 387 F.3d at 1259
    . “By definition . . . under the abuse of discretion standard of review there
    will be occasions in which we affirm the district court even though we would have
    gone the other way had it been our call.”
    Id. (quoting In
    re Rasbury, 
    24 F.3d 159
    ,
    168 (11th Cir. 1994)). In order to reverse, we must find that the district court “has
    made a clear error of judgment, or has applied the wrong legal standard.”
    Id. (citing Maiz
    v. Virani, 
    253 F.3d 641
    , 662 (11th Cir. 2001)).
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    We first address Dr. Aultman’s qualifications. The proponent of the expert’s
    testimony must show that the expert is qualified based on her “knowledge, skill,
    experience, training, or education.” 
    Frazier, 387 F.3d at 1261
    (emphasis omitted)
    (quoting Fed. R. Evid. 702). 24 Based on her training and experience, we find that
    Dr. Aultman was qualified as an expert to testify as to whether Ruan and Couch’s
    treatment of some patients was outside the usual course of professional practice.
    Dr. Aultman has a medical degree and completed a residency in internal medicine.
    She has practiced for over twenty years in Mississippi: at the time of trial she was a
    hospitalist, but she has also practiced general medicine in a private clinic and
    palliative care in a hospice setting. She regularly prescribes opioids,
    benzodiazepines, and muscle relaxers to patients with acute and chronic pain, and
    24
    Rule 702 provides:
    A witness who is qualified as an expert by knowledge, skill, experience, training,
    or education may testify in the form of an opinion or otherwise if:
    (a) the expert’s scientific, technical, or other specialized knowledge will
    help the trier of fact to understand the evidence or to determine a fact in
    issue;
    (b) the testimony is based on sufficient facts or data;
    (c) the testimony is the product of reliable principles and methods; and
    (d) the expert has reliably applied the principles and methods to the facts of
    the case.
    Fed. R. Evid. 702.
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    she has prescribed fentanyl to hospice patients. She has previously testified as an
    expert witness in federal court cases involving illegitimate pain-medication
    prescriptions and has reviewed patient files for the DEA since 2002. Dr. Aultman
    testified generally about the doctor-patient relationship, examination and
    prescribing practices, pain assessments, and documenting patient information. She
    also testified specifically regarding her review of the medical files of four PPSA
    patients and Officer Kelley, opining that the appellants’ treatment of these patients
    was outside the usual course of professional practice, as shown by a lack of
    accurate patient histories and the infrequent use of non-opioid treatment options.
    Her testimony pertained to Counts 1–7 and 15, as each depended on allegations of
    prescribing outside the usual course of professional practice.
    We are not concerned, although the appellants say we should be, that Dr.
    Aultman is not a board-certified pain management physician and does not have her
    own specialty clinic like PPSA. This Court has held that a “proffered physician
    need not be a specialist in the particular medical discipline to render expert
    testimony relating to that discipline.” McDowell v. Brown, 
    392 F.3d 1283
    , 1297
    (11th Cir. 2004) (quoting Gaydar v. Sociedad Instituto Gineco–Quirurgico y
    Planifacacion, 
    345 F.3d 15
    , 24 (1st Cir. 2003));25 see also Gayton v. McCoy, 593
    25
    In McDowell, the court allowed a neurologist to testify regarding the standard of care of
    jail nurses.
    Id. Granted, the
    court looked to Georgia state law to determine the qualifications of
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    137 F.3d 610
    , 617 (7th Cir. 2010) (“[C]ourts often find that a physician in general
    practice is competent to testify about problems that a medical specialist typically
    treats.”);26 Dickenson v. Cardiac & Thoracic Surgery of E. Tenn., 
    388 F.3d 976
    ,
    979–80, 982 (6th Cir. 2004) (reversing a district court’s exclusion of a cardiac
    thoracic surgeon’s testimony on the standard of care applicable to pulmonologists);
    Doe v. Biological, Inc., 
    971 F.2d 375
    , 385 (9th Cir. 1992) (“The fact that the
    experts were not licensed hematologists does not mean that they were testifying
    beyond their area of expertise. Ordinarily, courts impose no requirement that an
    expert be a specialist in a given field, although there may be a requirement that he
    or she be of a certain profession, such as a doctor.”); United States v. Viglia, 
    549 F.2d 335
    , 336–37 (5th Cir. 1977) (pediatrician may testify about drug’s effect on
    obese persons despite no experience treating obese patients). Despite not being a
    pain management specialist, Dr. Aultman’s familiarity with prescribing opioids
    and treating chronic pain qualified her to opine on the appellants’ conduct.
    Additionally, the appellants questioned Dr. Aultman on cross-examination
    about her experience treating pain. They even established that as a hospitalist, she
    an expert, rather than the Federal Rules of Evidence, but we don’t find any serious differences
    between the two regarding this issue.
    Id. at 1295–97.
    26
    In Gayton, the Seventh Circuit held that a physician was not unqualified to testify about a
    heart-related death merely because he was not a cardiologist, but it ultimately upheld the
    exclusion of the physician’s testimony because he lacked the necessary qualifications.
    Id. at 617–
    18.
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    did not have her own clinical practice and that when a patient “presented with a
    significant amount of pain that was beyond [her] specialization, [she] referred that
    patient” to someone else. “A district court’s gatekeeper role . . . ‘is not intended to
    supplant the adversary system or the role of the jury.’” 
    Maiz, 253 F.3d at 666
    (quoting Allison v. McGhan, 
    184 F.3d 1300
    , 1311 (11th Cir. 1999)). “Vigorous
    cross-examination, presentation of contrary evidence, and careful instruction on the
    burden of proof are the traditional and appropriate means of attacking [debatable]
    but admissible evidence.”
    Id. (quoting Allison,
    184 F.3d at 1311). We find no
    abuse of discretion in the admission of Dr. Aultman as an expert, and the weight of
    her testimony was for the jury to evaluate.
    We turn now to the appellants’ claim that the district court improperly
    limited their cross-examination of Dr. Aultman. First, Couch sought to elicit a
    statement from Dr. Aultman that she could not practice pain management in
    Mississippi under a 2016 requirement by that state’s medical licensing board that
    pain management doctors have either completed a residency in that sub-specialty
    or be board certified in it, or otherwise have completed 100 hours of specialized
    continuing medical education. The district court did not abuse its discretion in
    sustaining the government’s relevance objection to this line of questioning. “[T]he
    district court enjoys ‘wide latitude’ to impose ‘reasonable limits’ on cross-
    examination based on, among other things, ‘confusion of the issues’ and
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    ‘interrogation that is repetitive or only marginally relevant.’” United States v.
    Maxwell, 
    579 F.3d 1282
    , 1296 (11th Cir. 2009) (quoting Delaware v. Van Arsdall,
    
    475 U.S. 673
    , 679 (1986)). Dr. Aultman’s cross-examination had already
    established that she had never been board certified in pain management, had a
    residency or fellowship in pain management, or been peer reviewed in a pain
    management journal. That she was not licensed in Mississippi as a pain
    management specialist was repetitive and would have risked confusing the jury,
    considering that Mississippi’s standards did not govern the appellants’ Alabama
    practice and did not go into effect until after the indictment period in this case.
    The appellants also contend that the district court erred in limiting the scope
    of Ruan’s cross-examination of Dr. Aultman regarding her previous work for the
    government. Dr. Aultman testified that she had been paid about $7,600 for her
    work on the appellants’ case and that she had worked for the DEA or the
    Department of Justice on “five or six cases last year [2016].” Ruan asked her to
    confirm that between 2000 and 2014, she “had signed government contracts
    totaling more than $325,000.” The government objected that payments for other
    contracts were irrelevant, and the district court sustained the objection.
    The government contends that there was no error here since the jury had
    already heard of Dr. Aultman’s $7,600 fee for this case; the evidence of the
    additional contract amounts would have been cumulative; and the district court had
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    discretion to curtail the cross-examination. We disagree. “While the district court
    has ‘discretionary authority to rule on the admissibility of evidence, including the
    power to limit cross-examination,’ this discretion is limited by the guarantee of the
    Sixth Amendment’s Confrontation Clause that a criminal defendant has the right to
    cross-examine prosecutorial witnesses.” 
    Maxwell, 579 F.3d at 1295
    (quoting
    United States v. Garcia, 
    13 F.3d 1464
    , 1468 (11th Cir. 1994)). “In particular, . . . ‘a
    presumption favors free cross-examination on possible bias, motive, ability to
    perceive and remember, and general character for truthfulness.’”
    Id. at 1295–96
    (quoting United States v. Phelps, 
    733 F.2d 1464
    , 1472 (11th Cir. 1984)). “[T]he
    test for the Confrontation Clause is whether a reasonable jury would have received
    a significantly different impression of the witness’ credibility had counsel pursued
    the proposed line of cross-examination.”
    Id. at 1296
    (quoting 
    Garcia, 13 F.3d at 1469
    ). Aside from Confrontation Clause concerns, proof of bias or motive to lie is
    also almost always relevant under Federal Rule of Evidence 402, as “[a] successful
    showing of bias on the part of a witness would have a tendency to make the facts to
    which he testified less probable in the eyes of the jury than it would be without
    such testimony.” United States v. Abel, 
    469 U.S. 45
    , 51–52 (1984).
    Applying these principles leads us to the conclusion that the district court
    abused its discretion by allowing the jury to believe that Dr. Aultman’s financial
    involvement with the government was substantially less than was accurate. All the
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    jury knew is that Dr. Aultman had been paid roughly $7,600 in expert fees for this
    case, and the appellants sought to show that she had signed contracts over 40 times
    that much from the government over the years. This evidence was certainly not
    cumulative and instead would have been probative of Dr. Aultman’s credibility in
    light of her extensive relationship with the government.
    This Court held similarly in United States v. Williams, 
    954 F.2d 668
    (11th
    Cir. 1992). There, the district court allowed a government informant to testify
    regarding the percentage (25%) he received from successful undercover operations
    and the amount of money he had already been paid in that case.
    Id. at 671–72.
    However, the district court excluded testimony detailing the total amount of money
    the informant had received for his work as an informant because the sum was
    “outrageous” and therefore prejudicial.
    Id. at 671,
    672 n.3. That evidence included
    the fact that the informant had received $450,000 in reward money, including 25%
    of a $1,258,000 seizure (i.e., $314,500).
    Id. This Court
    reversed, reasoning that
    “[t]he jury has the right to know what may be motivating a witness, especially a
    government paid, regularly employed, informant-witness.”
    Id. at 672;
    see also
    Collins v. Wayne Corp., 
    621 F.2d 777
    , 784 (5th Cir. 1980) (“A showing of a
    pattern of compensation in past cases raises an inference of the possibility that the
    witness has slanted his testimony in those cases so he would be hired to testify in
    future cases.”).
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    Ultimately, however, although we find that the district court abused its
    discretion in limiting this testimony, we find the error harmless. “[E]videntiary and
    other nonconstitutional errors do not constitute grounds for reversal unless there is
    a reasonable likelihood that they affected the defendant’s substantial rights; where
    an error had no substantial influence on the outcome, and sufficient evidence
    uninfected by error supports the verdict, reversal is not warranted.” United States v.
    Arbolaez, 
    450 F.3d 1283
    , 1290 (11th Cir. 2006) (quoting United States v. Hawkins,
    
    905 F.2d 1489
    , 1493 (11th Cir.1990)). As previously detailed, there was ample
    other evidence aside from Dr. Aultman’s testimony to convict the appellants of
    RICO conspiracy (Count 1), drug distribution conspiracies (Counts 2–4), and
    health care fraud conspiracy (Count 15). Thus, it is unlikely that Dr. Aultman’s
    testimony affected the outcome on those charges. Couch specifically argues that
    the error was not harmless because Dr. Aultman was the only expert to review the
    medical file of undercover DEA agent Officer Kelley, whose treatment by Couch
    formed the basis of Counts 5–7. Recall that her opinion was that Couch prescribed
    controlled substances to Officer Kelley outside the usual course of professional
    practice. However, this Court has held that expert testimony, while helpful, is not
    required to prove violations of the Controlled Substances Act, and “a jury can find
    that a doctor prescribed controlled substances not in the usual course of his medical
    practice and was acting other than for a legitimate medical purpose from evidence
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    received from lay witnesses surrounding the facts and circumstances of the
    prescriptions.” 
    Joseph, 709 F.3d at 1103
    (quoting United States v. Rogers, 
    609 F.2d 834
    , 839 (5th Cir. 1980)). In additional support of these counts, Officer
    Kelley himself testified that he did not need the opioids that Couch prescribed him,
    and the jury viewed the undercover videos of his visits to PPSA. The jury saw that
    Officer Kelley touched the floor without pain and heard him request “Roxy” pills.
    They heard that a drug test and a PDMP check would have shown that he was
    neither filling the prescriptions nor taking the drugs. This evidence, which suggests
    that Couch prescribed controlled substances to Officer Kelley only after a cursory
    visit with him and without a showing of medical need, was sufficient to convict
    Couch on Counts 5–7, without Dr. Aultman’s additional opinion.
    C.     Jury Instructions
    The appellants next contend that the district court erred in refusing to give
    their proposed jury instruction regarding Counts 1–7, 13–15, and 17, which
    addressed specifically the applicable standard by which to judge a physician’s
    conduct for violations of the Controlled Substances Act. The appellants’ proposed
    “Instruction 18” stated in pertinent part:
    In making a medical judgment concerning the right treatment for an
    individual patient, physicians have wide discretion to choose among a
    wide range of options. No single national standard exists. Therefore, in
    determining whether a Defendant acted without a legitimate medical
    purpose or outside the usual course of professional practice, you should
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    examine all of a Defendant’s actions and the surrounding
    circumstances.
    If a physician dispenses or distributes a Controlled Substance in good
    faith while medically treating a patient, then the physician has
    dispensed or distributed that Controlled Substance for a legitimate
    medical purpose and within the usual course of professional practice,
    and you must return a not guilty verdict for the applicable count. Good
    faith in this context means good intentions and the honest exercise of
    professional judgment as to the patient’s needs. It means that the
    Defendant acted in accordance with what he reasonably believed to be
    proper medical practice. If you find that a Defendant acted in good faith
    in dispensing or distributing a Controlled Substance, as charged in the
    indictment, then you must return a not guilty verdict.
    The Government must prove, beyond a reasonable doubt, that the
    decision to dispense or distribute a Controlled Substance fell below a
    standard of medical practice generally recognized and accepted in the
    United States before you can return a guilty verdict as to that alleged
    violation of the Controlled Substances Act. But a Defendant’s
    negligence, failure to meet a standard of care, or medical malpractice,
    on its own is not enough to convict him. An unintentional failure to act
    how a reasonable doctor would have under similar circumstances is, by
    itself, insufficient to prove that a Defendant dispensed or distributed a
    Controlled Substance outside the usual course of professional practice
    and for no legitimate medical purpose.
    To prove a violation of the Controlled Substances Act in this case, the
    Government must prove, beyond a reasonable doubt, that the
    physician’s decisions to distribute or dispense a Controlled Substance
    were inconsistent with any accepted method of treating a pain patient –
    that the physician, in fact, operated as a drug pusher.
    The district court refused to give the appellants’ proposed instruction for
    several reasons. The court found too subjective the appellants’ request that the
    court equate subjective “good faith”—acting with “good intentions and the honest
    exercise of professional judgment as to the patients’ needs”—with prescribing “for
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    a legitimate medical purpose and within the usual course of professional practice.”
    The court also found that the language distinguishing the civil standard of care
    from the criminal standard would unnecessarily confuse the jury, and that the
    language requiring proof that the physician operated as a “drug pusher” was legally
    incorrect.
    The district court instead instructed the jury as follows:
    For a controlled substance to be lawfully dispensed by a prescription,
    the prescription must have been issued by a practitioner both within the
    usual course of professional practice and for a legitimate medical
    purpose. If the prescription was issued either, one, not for a legitimate
    medical purpose or, two, outside the usual course of professional
    practice, then the prescription was not lawfully issued.
    A controlled substance is prescribed by a physician in the usual course
    of professional practice and, therefore, lawfully if the substance is
    prescribed by him in good faith as part of his medical treatment of a
    patient in accordance with the standard of medical practice generally
    recognized and accepted in the United States. The appellants in this
    case maintain at all times they acted in good faith and in accordance
    with standard of medical practice generally recognized and accepted in
    the United States in treating patients.
    Thus a medical doctor has violated section 841 when the government
    has proved beyond a reasonable doubt that the doctor’s actions were
    either not for a legitimate medical purpose or were outside the usual
    course of professional medical practice.
    This Court reviews a district court’s rejection of a proposed jury instruction
    for an abuse of discretion. United States v. Jockisch, 
    857 F.3d 1122
    , 1126 (11th
    Cir. 2017). A district court commits reversible error if: “(1) the requested
    instruction was a correct statement of the law, (2) its subject matter was not
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    substantially covered by other instructions, and (3) its subject matter dealt with an
    issue in the trial court that was so important that failure to give it seriously
    impaired the defendant’s ability to defend himself.” United States v. Carrasco, 
    381 F.3d 1237
    , 1242 (11th Cir. 2004) (quoting United States v. Paradies, 
    98 F.3d 1266
    ,
    1286 (11th Cir. 1996)). A district court may properly refuse to give an instruction
    that fails any one of these prongs. See 
    Jockisch, 857 F.3d at 1126
    .
    1.     Good Faith Instruction
    We first address the appellants’ proposed “good faith” instruction, which we
    find is an incorrect statement of the law. This Court has held that “[w]hether a
    defendant acts in the usual course of his professional practice must be evaluated
    based on an objective standard, not a subjective standard.” 
    Joseph, 709 F.3d at 1097
    ; see also 
    Tobin, 676 F.3d at 1282
    –83; 
    Merrill, 513 F.3d at 1306
    ; United
    States v. Williams, 
    445 F.3d 1302
    , 1309 (11th Cir. 2006), abrogated on other
    grounds by United States v. Lewis, 
    492 F.3d 1219
    , 1220 (11th Cir. 2007) (en banc).
    This rule reflects the Supreme Court’s decision in United States v. Moore, 
    423 U.S. 122
    (1975), the first case by the Supreme Court establishing that physicians can be
    prosecuted for violating the Controlled Substances Act “when their activities fall
    outside the usual course of professional practice.”
    Id. at 124.
    Yet under the
    appellants’ proposed instruction, as long as a physician subjectively believes that
    he is meeting a patient’s medical needs by prescribing a controlled substance, then
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    he cannot be convicted of violating the Act no matter how far outside the bounds
    of professional medical practice his conduct falls. In other words, good faith is a
    complete defense. This Court has repeatedly rejected good faith instructions nearly
    identical to that proposed by the appellants here because they failed to include the
    objective standard by which to judge the physician’s conduct. See 
    Joseph, 709 F.3d at 1097
    ; 
    Merrill, 513 F.3d at 1305
    ; 
    Williams, 445 F.3d at 1309
    . And in these cases,
    this Court has approved the same instruction that the district court ultimately gave
    here:
    A controlled substance is prescribed by a physician in the usual course
    of a professional practice and, therefore, lawfully, if the substance is
    prescribed by him in good faith as part of his medical treatment of a
    patient in accordance with the standard of medical practice generally
    recognized and accepted in the United States.
    
    Joseph, 709 F.3d at 1092
    ; 
    Tobin, 676 F.3d at 1281
    ; 
    Merrill, 513 F.3d at 1306
    ;
    
    Williams, 445 F.3d at 1309
    .
    The appellants recognize that this Court has rejected nearly identical
    proposed jury instructions but argue that this Court should reconsider its prior
    holdings. However, under the Eleventh Circuit’s prior panel precedent rule, this
    Court is bound by its holdings in Williams and Joseph. See United States v. Steele,
    
    147 F.3d 1316
    , 1317–18 (11th Cir. 1998) (en banc) (“Under our prior precedent
    rule, a panel cannot overrule a prior one’s holding even though convinced it is
    wrong.”); see also Smith v. GTE Corp., 
    236 F.3d 1292
    , 1303 (11th Cir. 2001)
    113
    Case: 17-12653     Date Filed: 07/10/2020   Page: 114 of 137
    (“[W]e categorically reject any exception to the prior panel precedent rule based
    upon a perceived defect in the prior panel’s reasoning or analysis as it relates to the
    law in existence at that time.”).
    Nor did the district court’s refusal to give the appellants’ proposed “good
    faith” instruction seriously impair the appellants’ ability to present an effective
    defense. The district court’s instruction told the jury that good faith was a defense
    to a Controlled Substances Act violation as long as the appellants’ conduct also
    was in accordance with the standards of medical practice generally recognized and
    accepted in the United States, and it highlighted that the appellants “maintain[ed]
    at all times they acted in good faith and in accordance with [that] standard.” The
    jury could have accepted this defense and acquitted based on the good faith
    instruction that the district court provided. Cf. United States v. Yeager, 
    331 F.3d 1216
    , 1224 (11th Cir. 2003) (“The jury could have accepted this defense and
    acquitted Yeager by reference to the instructions, particularly the materiality
    instruction. Therefore, we can find no error in the refusal of the reasonable reliance
    instruction.”).
    2.     Drug Pusher Instruction
    Next, we find that the proposed “drug pusher” instruction is also an incorrect
    statement of the law. The appellants argue that the Supreme Court’s decisions in
    Moore, 
    423 U.S. 122
    , and Gonzales v. Oregon, 
    546 U.S. 243
    (2006), taken
    114
    Case: 17-12653     Date Filed: 07/10/2020   Page: 115 of 137
    together, support giving a jury instruction that equates bad physicians to drug
    pushers. We disagree. Like it or not, the term “drug pusher” connotes imagery of
    back-alley illicit drug deals, not an established medical practice like PPSA. And
    while the Supreme Court in Moore described the physician-defendant in that case
    as a “large-scale [drug] 
    ‘pusher,’” 423 U.S. at 143
    , the Supreme Court nowhere
    suggested that acting as a drug dealer or pusher as conventionally understood is
    necessary for a Controlled Substances Act conviction,
    id. at 139–42.
    Rather, as
    previously noted, the Supreme Court held that a physician violates the Controlled
    Substances Act if his conduct “fall[s] outside the usual course of professional
    practice,”
    id. at 124,
    which could occur in a manner of different ways.
    Additionally, this Court’s precedents applying Moore do not suggest that acting as
    a drug pusher is necessary to convict a physician for violations of 21 U.S.C. § 841.
    See 
    Joseph, 709 F.3d at 1096
    ; 
    Tobin, 676 F.3d at 1282
    –83; 
    Merrill, 513 F.3d at 1306
    ; 
    Williams, 445 F.3d at 1309
    .
    As for the appellants’ reliance on Gonzales, that case has no application
    here. Gonzales was not a criminal prosecution. Rather, the Supreme Court applied
    administrative law to analyze an interpretive rule issued by the Attorney General
    indicating that physicians who dispense controlled substances for use in physician-
    assisted suicides of terminally ill patients would be violating the Controlled
    Substances Act because assisted suicide was not a “legitimate medical purpose”
    115
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    under the Act. 
    See 546 U.S. at 248
    –49. The Attorney General’s judgment
    conflicted with Oregon law, which permitted the practice. The Supreme Court
    struck down the interpretive rule because it exceeded the Attorney General’s
    delegated authority under the Controlled Substances Act.
    Id. at 267.
    In addressing
    the Act’s purpose and design, the Supreme Court stated that “[t]he [Act] and our
    case law amply support the conclusion that Congress regulates medical practice
    insofar as it bars doctors from using their prescription-writing powers as a means
    to engage in illicit drug dealing and trafficking as conventionally understood.”
    Id. at 269–70.
    In describing the Act in such a way, the Supreme Court was referring to
    its previous decision in Moore. But the Supreme Court nowhere displayed the
    intention to upset or limit its holding in Moore; in fact, it cited Moore with
    approval. See
    id. at 269.
    Numerous courts have since rejected the argument that those statements in
    Gonzales have any bearing on Moore’s holding or that they limit the scope of
    liability for physicians under § 841 to “drug or street dealer” activity. For example,
    in United States v. Volkman, 
    797 F.3d 377
    (6th Cir.), cert. denied, 
    136 S. Ct. 348
    (2015), the Sixth Circuit held that “Gonzales did nothing to alter the reality that
    ‘knowingly distributing prescriptions outside the course of professional practice is
    a sufficient condition to convict a defendant under the criminal statutes relating to
    controlled substances.’”
    Id. at 386
    (quoting United States v. Kanner, 
    603 F.3d 530
    ,
    116
    Case: 17-12653    Date Filed: 07/10/2020    Page: 117 of 137
    535 (8th Cir. 2010)). In Volkman, the defendant proposed the following jury
    instruction, derived from the Supreme Court’s statements in Gonzales: “In other
    words, in order to find the defendant guilty, you must find that he used his
    prescription-writing power as a means to engage in the illicit drug-dealing and
    trafficking as conventionally understood.”
    Id. at 385.
    The Sixth Circuit held that
    such an instruction was an incorrect statement of the law because it improperly
    “cabined the scope of what the jury could consider.”
    Id. at 386
    . The court stated,
    “If Volkman’s goal was to conjure up the unsavory specter of ‘street’ drug
    dealing—complete with imagery of shady characters conducting quick, suspicious
    handoffs—then his instruction was not an accurate statement of the law, for ‘street’
    drug dealing is not necessary to prove a violation of the [Controlled Substances
    Act].”
    Id. Similarly, in
    Kanner, 603 F.3d at 533
    –35, the Eighth Circuit rejected the
    defendant’s argument that the indictment should have included the above-quoted
    language from Gonzales, holding that “Gonzales did not supplant the standard for
    violations of the [Controlled Substances Act].” See
    id. at 535
    (“Rather, post
    Gonzales, ‘knowingly distributing prescriptions outside the course of professional
    practice is a sufficient condition to convict a defendant under the criminal statutes
    relating to controlled substances.’” (quoting United States v. Armstrong, 
    550 F.3d 382
    , 397 (5th Cir. 2008)); see also United States v. Lovern, 
    590 F.3d 1095
    , 1100
    117
    Case: 17-12653      Date Filed: 07/10/2020    Page: 118 of 137
    (10th Cir. 2009) (“Unlike Gonzales, we have before us no interpretive rule seeking
    to define a practice as lacking any legitimate medical purpose . . . . Instead, in this
    case the government sought to establish that the conduct of the . . . physicians was
    inconsistent with the usual course of professional practice the old-fashioned way:
    through witnesses and documentary proof at trial focused on the contemporary
    norms of the medical profession.”). We agree with these courts that Gonzales did
    nothing to disturb the holding of Moore, which sets out a standard for violations of
    the Controlled Substances Act that is based solely on the statutory provisions
    themselves. To require the jury to find that the appellants acted as drug pushers
    would violate these principles.
    3.     Civil Standard of Care Instruction
    Finally, we address the appellants’ argument that the district court permitted
    jurors to conflate civil and criminal standards by refusing to give their proposed
    instruction because it would be too confusing for the jury. While the instruction
    proposed by the appellants, which stated that “a Defendant’s negligence, failure to
    meet a standard of care, or medical malpractice, on its own is not enough to
    convict him”, is an accurate statement of the law, we do not agree that its exclusion
    from the instructions impaired the appellants’ ability to adequately present their
    defense.
    118
    Case: 17-12653     Date Filed: 07/10/2020     Page: 119 of 137
    First, there is no dispute that the district court instructed the jury on the
    correct criminal standard for Controlled Substances Act violations. This instruction
    is in keeping with this Court’s guidance in Williams that an instruction explaining
    that the government must prove that a doctor dispensed controlled substances
    “outside the usual course of professional practice . . . properly state[d] the standard
    by which a [doctor’s] conduct must be 
    judged.” 445 F.3d at 1307
    –08.
    Nonetheless, the appellants argue that an instruction distinguishing the civil
    standard was necessary because the government and several of its medical experts
    confused the two during trial. The appellants point out that the government
    conflated the terms “standard of care” and “usual course of professional practice”
    when examining Dr. Greenberg. They also emphasize that Dr. Vohra actually
    equated those terms in his testimony, and that while Dr. Aultman was never asked
    to provide a definition of “the usual course of professional practice,” the
    government regularly asked her opinion on whether certain conduct would be
    within that standard. However, we find that the district court’s instruction at the
    end of trial defining the criminal standard adequately cured any incorrect
    references to the civil standard of care by experts or the prosecution.
    Additionally, the district court instructed the jury that if the appellants acted
    in good faith, they acted lawfully. Other courts have found that such an instruction
    sufficiently covered that the jury was not to convict based on a civil standard of
    119
    Case: 17-12653     Date Filed: 07/10/2020    Page: 120 of 137
    care. See United States v. McIver, 
    470 F.3d 550
    , 560 (4th Cir. 2006) (“The
    inclusion of a good faith instruction is a plainspoken method of explaining to the
    jury a critical difference between the two standards.”); United States v. Feingold,
    
    454 F.3d 1001
    , 1012 (9th Cir. 2006) (jury instructions that informed the jury that
    “[a] practitioner may not be convicted of unlawful distribution of controlled
    substances when he distributes controlled substances in good faith to patients in the
    regular course of professional practice” and that “the government must prove
    beyond a reasonable doubt that the defendant prescribed or distributed the
    controlled substance other than for a legitimate medical purpose and not in the
    usual course of professional practice” correctly articulated the standard of liability
    under § 841(a)(1)).
    Finally, the appellants presented an expert to provide an explanation of the
    “usual course of professional practice.” Dr. Warfield’s definition was that medical
    malpractice is not outside the usual course of professional practice. At closing, the
    appellants argued that malpractice is not enough to convict. Thus, the jury was able
    to consider these standards in determining whether the appellants’ conduct was
    criminal. See 
    Joseph, 709 F.3d at 1097
    (highlighting the fact that “[e]xperts for
    both the prosecution and the defense testified about the accepted standard of
    medical practice”).
    D.     Ruan’s Sentence
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    Ruan also challenges the sentence imposed by the district court. First, he
    argues that the district court clearly erred in finding that at least 10.6% of the
    prescriptions written were illegal. Next, he argues that the district court clearly
    erred when it applied an obstruction-of-justice enhancement based on his
    testimony that he was unaware that one of his employees was forging
    prescriptions. Then, he argues that the district court plainly erred by applying an
    enhancement under U.S.S.G. § 2S1.1(b)(2)(B) because he was convicted under
    § 1956(h). He also argues that the district court clearly erred in calculating the
    restitution amount based on the number of off-label prescriptions for TIRFs and
    overmedicated patients. Finally, he argues that the district court erred in ordering
    forfeiture for the RICO Act violation because the evidence was insufficient to
    support his conviction. The government argues that any error in calculating the
    guideline range was harmless because the district court said that it would have
    imposed the same sentence, regardless of any errors in calculating the guidelines
    range.
    1.     Harmless Error
    We first address the government’s harmless-error argument. Where a
    defendant preserves a challenge to the guidelines calculations, we have held that
    any error is harmless if (1) the district court stated it would impose the same
    sentence even if it decided the guidelines issue in the defendant’s favor, and
    121
    Case: 17-12653      Date Filed: 07/10/2020    Page: 122 of 137
    (2) assuming an error occurred and the lower guideline range argued for by the
    defendant applied, “the final sentence resulting from consideration of the § 3553(a)
    factors would still be reasonable.” United States v. Keene, 
    470 F.3d 1347
    , 1349
    (11th Cir. 2006). This is because “[t]he Supreme Court and this Court have long
    recognized that it is not necessary to decide guidelines issues or remand cases for
    new sentence proceedings where the guidelines error, if any, did not affect the
    sentence.”
    Id. (alteration in
    original). We need not reach the substantive
    reasonableness issue where a district court’s decision is based on a clearly
    erroneous fact. United States v. Slaton, 
    801 F.3d 1308
    , 1320 (11th Cir. 2015).
    We examine “whether the sentence is substantively reasonable under the
    totality of the circumstances.” United States v. Tome, 
    611 F.3d 1371
    , 1378 (11th
    Cir. 2010). The party who is challenging the sentence bears the burden of showing
    that it is “unreasonable in light of the record and the § 3553(a) factors.”
    Id. The district
    court must impose a sentence that is “sufficient, but not greater
    than necessary, to comply with the purposes” set forth in 18 U.S.C. § 3553(a)(2),
    including the need to reflect the seriousness of the offense, promote respect for the
    law, provide just punishment for the offense, deter criminal conduct, and protect
    the public from the defendant’s future criminal conduct. 18 U.S.C. § 3553(a)(2).
    Additionally, the court must consider: (1) the nature and circumstances of the
    offense; (2) the history and characteristics of the defendant; (3) the kinds of
    122
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    sentences available; (4) the guideline sentencing range; (5) any pertinent policy
    statements; (6) the need to avoid unwarranted sentencing disparities among
    defendants with similar records who have been convicted of similar conduct; and
    (7) the need to provide restitution to any victims. 18 U.S.C. § 3553(a)(1), (3)–(7).
    In determining whether to sentence a defendant outside the guidelines, a
    district court must “consider the extent of the deviation and ensure that the
    justification is sufficiently compelling to support the degree of the variance.” Gall
    v. United States, 
    552 U.S. 38
    , 50 (2007). “[A] major departure should be supported
    by a more significant justification than a minor one,” and the district court “must
    adequately explain the chosen sentence to allow for meaningful appellate review
    and to promote the perception of fair sentencing.”
    Id. Here, the
    district court’s statement that it would have imposed the same
    sentence did not render the alleged Guidelines errors harmless. If Ruan succeeded
    on his Guideline challenges, the offense level would be 25, which, with a criminal
    history score of I, results in a lower guideline range of 57 to 71 months. The
    district court did not provide sufficient fact-finding or explanation to support an
    upward variance from 71 to 252 months. See 
    Gall, 552 U.S. at 50
    . Thus, the
    sentence would have been substantively unreasonable, so the alleged Guidelines
    errors were not harmless. See 
    Keene, 470 F.3d at 1349
    .
    2.     Drug Quantity Calculation
    123
    Case: 17-12653      Date Filed: 07/10/2020    Page: 124 of 137
    Next, we address each of Ruan’s arguments in turn. First, Ruan argues that
    the district court clearly erred in finding that at least 10.6% of the prescriptions
    written were illegal. When reviewing for procedural reasonableness, we consider
    legal issues de novo, review factual findings for clear error, and apply the
    guidelines to the facts with due deference, which is akin to clear error review.
    United States v. Rothenberg, 
    610 F.3d 621
    , 624 (11th Cir. 2010). The district
    court’s determination of the quantity of drugs used to establish a base offense level
    for sentencing purposes is reviewed for clear error. United States v. Reeves,
    
    742 F.3d 487
    , 506 (11th Cir. 2014). We may affirm for any reason supported by
    the record, even if not relied upon by the district court. United States v. Chitwood,
    
    676 F.3d 971
    , 975 (11th Cir. 2012).
    To be clearly erroneous, a finding must leave us with a “definite and firm
    conviction that a mistake has been committed.” 
    Rothenberg, 610 F.3d at 624
    (quoting United States v. Rodriguez-Lopez, 
    363 F.3d 1134
    , 1137 (11th Cir. 2004)).
    A factual finding cannot be clearly erroneous when the factfinder is choosing
    between two permissible views of the evidence. United States v. Saingerard,
    
    621 F.3d 1341
    , 1343 (11th Cir. 2010) (per curiam). “‘We accord great deference to
    the district court’s credibility determinations’ of drug-quantity witnesses.” United
    States v. Barsoum, 
    763 F.3d 1321
    , 1333 (11th Cir. 2014) (quoting United States v.
    Gregg, 
    179 F.3d 1321
    , 1316 (11th Cir. 1999)).
    124
    Case: 17-12653     Date Filed: 07/10/2020    Page: 125 of 137
    The government bears the burden of establishing drug quantity by a
    preponderance of the evidence. United States v. Rodriguez, 
    398 F.3d 1291
    , 1296
    (11th Cir. 2005). The district court must ensure that the government “carries this
    burden by presenting reliable and specific evidence.” United States v. Lawrence,
    
    47 F.3d 1559
    , 1566 (11th Cir. 1995). In the medical context, drug distribution
    requires proof that either: (a) the prescription was not for a legitimate medical
    purpose; or (b) the prescription was not made in the “usual course of professional
    practice.” 
    Joseph, 709 F.3d at 1102
    .
    When the drug amount that is seized does not reflect the scale of the offense,
    the district court must approximate the drug quantity. United States v. Frazier,
    
    89 F.3d 1501
    , 1506 (11th Cir. 1996). In estimating the drug quantity attributable to
    the defendant, the court may rely on evidence demonstrating the average frequency
    and amount of a defendant’s drug sales over a given period.
    Id. This determination
    “may be based on fair, accurate, and conservative estimates of the quantity of
    drugs attributable to a defendant . . . [but] cannot be based on calculations of drug
    quantities that are merely speculative.” United States v. Zapata, 
    139 F.3d 1355
    ,
    1359 (11th Cir. 1998) (per curiam).
    The drug guideline, § 2D1.1(a)(1), calculates a base offense level based on
    the total “marihuana equivalent” of all drugs involved in all the defendants’
    offenses. U.S.S.G. § 2D1.1 cmt. nn.7, 8(B). The highest base offense level (38)
    125
    Case: 17-12653      Date Filed: 07/10/2020    Page: 126 of 137
    applies for quantities over 90,000 kilograms; that is what the PSR applied here.
    PSR ¶ 65; U.S.S.G. § 2D1.1(c)(1). The marijuana equivalent of all the morphine,
    oxycodone, methadone, hydromorphone, oxymorphone, and fentanyl defendants
    prescribed over the course of the conspiracy was almost 855,000 kilograms. Here,
    the district court did not clearly err in concluding that at least 10.6% of the
    prescriptions were illegal. Testimony from two nurse practitioners, Palmer and
    Parker, suggested that half of the clinic’s patients were overmedicated, and given
    those nurses’ qualifications and length of employment at the clinic, the district
    court was entitled to credit that testimony. 
    Barsoum, 763 F.3d at 1333
    . Moreover,
    the evidence at trial indicated that significant amounts of Ruan and Couch’s
    practice occurred outside the usual course of professional practice, including:
    altering prescription habits to further their financial interests; allowing a nurse
    practitioner to forge prescriptions for his and other nurses’ patients; leaving pre-
    signed prescription pads for nurses to use when the doctors were out of the office;
    insufficiently safeguarding high-risk patients; ignoring signs of potential drug
    diversion; failing to adequately get informed consent for prescriptions, especially
    for off-label prescriptions; not conducting adequate examinations to diagnose
    patients; and not first attempting more conservative care. The sheer breadth of
    improper conduct at the clinic means that the district court did not clearly err in
    concluding that at least 10.6% of the prescriptions were illegal.
    126
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    3.     Obstruction-of-Justice Enhancement
    Ruan next argues that the district court clearly erred in finding that he
    obstructed justice. In reviewing the district court’s imposition of the
    obstruction-of-justice enhancement under U.S.S.G. § 3C1.1, we review the district
    court’s factual findings for clear error and its application of those findings to the
    Guidelines de novo. United States v. Doe, 
    661 F.3d 550
    , 565 (11th Cir. 2011). We
    accord great deference to a district court’s credibility determinations when
    applying the obstruction-of-justice enhancement based on perjury. United States v.
    Banks, 
    347 F.3d 1266
    , 1269 (11th Cir. 2003).
    Pursuant to § 3C1.1, a defendant’s offense level is increased by two levels if
    the defendant “willfully obstructed or impeded . . . the administration of justice
    with respect to the investigation, prosecution, or sentencing of the instant offense
    of conviction,” such as by committing perjury. U.S.S.G. § 3C1.1 & cmt. n.4(B).
    Perjury occurs where a witness gives deliberately false testimony regarding a
    material matter, which is not caused by confusion, mistake, or faulty memory.
    United States v. Dunnigan, 
    507 U.S. 87
    , 94 (1993).
    “[I]f a defendant objects to a sentence enhancement resulting from [his] trial
    testimony, a district court must review the evidence and make independent
    findings necessary to establish a willful impediment to or obstruction of
    justice . . . .”
    Id. at 95.
    To apply the enhancement, the district court must make a
    127
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    factual finding that the defendant gave perjured testimony on a material matter.
    United States v. Vallejo, 
    297 F.3d 1154
    , 1168 (11th Cir. 2002).
    Here, the district court’s finding that Ruan testified falsely about knowing
    about Palmer’s forgery is not clearly erroneous. In his email to Couch, Ruan
    directed him to “talk to [Palmer] on cutting down” on the use of red flag drugs.
    This email can reasonably be read to demonstrate that Ruan knew Palmer was
    illicitly prescribing medication, especially when considered with the testimony that
    others, who worked both in and outside the office, were aware that Palmer was
    writing prescriptions. Because the district court was entitled to choose between two
    reasonable constructions of the evidence, it did not clearly err in finding that Ruan
    testified falsely. See 
    Saingerard, 621 F.3d at 1343
    . Accordingly, we affirm as to
    this issue.
    4.    Money Laundering Conviction Enhancement
    Next, Ruan argues for the first time on appeal that the district court erred in
    applying a § 2S1.1(b)(2)(B) enhancement because he was convicted under
    § 1956(h). A failure to preserve a procedural objection at sentencing means that we
    only review for plain error. United States v. Vandergrift, 
    754 F.3d 1303
    , 1307
    (11th Cir. 2014). Under plain error review, we consider whether (1) an error
    occurred, (2) the error was plain, and (3) the error affects substantial rights. United
    States v. Olano, 
    507 U.S. 725
    , 732–36 (1993). When these factors are met, we may
    128
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    exercise discretion and correct the error if it “seriously affects the fairness,
    integrity or public reputation of judicial proceedings.”
    Id. at 736.
    Under U.S.S.G. § 2S1.1(b)(2)(B), a two-level sentencing enhancement
    applies if a defendant was convicted under 18 U.S.C. § 1956. U.S.S.G.
    § 2S1.1(b)(2)(B). However, that enhancement does not apply “if the defendant was
    convicted of a conspiracy under 18 U.S.C. § 1956(h) and the sole object of that
    conspiracy was to commit an offense set forth in 18 U.S.C. § 1957.” U.S.S.G.
    § 2S1.1 cmt. n.3(C). If a defendant is convicted under § 1957, a one-level
    enhancement applies. U.S.S.G. § 2S1.1(b)(2)(A).
    Here, the district court erred in applying the two-level sentencing
    enhancement under § 2S1.1(b)(2)(B), and it should have applied the one-level
    enhancement under § 2S1.1(b)(2)(A). However, this error did not affect Ruan’s
    substantial rights. Ruan’s original offense level was 44, which was treated as 43
    because that is the maximum offense level used by the Guidelines. Because
    applying the correct enhancement would only reduce his offense level to 43, it
    would not have changed the calculation of the guideline range. Accordingly, the
    district court’s error did not affect Ruan’s substantial rights, so we affirm as to this
    issue.
    5.     Restitution Calculation
    129
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    Next, Ruan argues that the district court’s restitution calculation was clearly
    erroneous. “The district court’s factual finding as to the specific amount of
    restitution is reviewed for clear error.” United States v. Futrell, 
    209 F.3d 1286
    ,
    1289 (11th Cir. 2000) (per curiam). “The district court’s decision to allow an
    estimate of the victim’s loss in a particular case” is reviewed for “abuse of
    discretion.”
    Id. The Mandatory
    Victims Restitution Act (“MVRA”) provides that, in the
    case of certain offenses, a defendant must make restitution to the victim of the
    offense. 18 U.S.C. § 3663A(a)(1). In particular, the MVRA applies where a
    defendant has been adjudicated guilty of: (1) a crime of violence; (2) an offense
    against property or under 21 U.S.C. § 856(a), including offenses committed by
    fraud or deceit; (3) an offense under 18 U.S.C. § 1365; or (4) an offense under
    18 U.S.C. § 670.
    Id. § 3663A(c)(1)(A)(i)–(iv).
    The amount of restitution ordered by a district court “must be based on the
    amount of loss actually caused by the defendant’s conduct.” United States v. Liss,
    
    265 F.3d 1220
    , 1231 (11th Cir. 2001). The government must establish the loss
    amount by a preponderance of the evidence. 18 U.S.C. § 3664(e); United States v.
    Valladares, 
    544 F.3d 1257
    , 1269 (11th Cir. 2008) (per curiam). This burden
    “simply requires the trier of fact to believe that the existence of a fact is more
    probable than its nonexistence.” United States v. Trainor, 
    376 F.3d 1325
    , 1331
    130
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    (11th Cir. 2004) (quoting Concrete Pipe & Prods. of Cal., Inc. v. Constr. Laborers
    Pension Tr. for So. Cal., 
    508 U.S. 602
    , 622 (1993)). Additionally, because
    “criminals rarely keep detailed records of their lawless dealings, totaling up every
    column and accounting for every misbegotten dollar . . . the preponderance
    standard must be applied in a practical, common-sense way.” 
    Futrell, 209 F.3d at 1292
    (quoting United States v. Savoie, 
    985 F.2d 612
    , 617 (1st Cir. 1993)). As the
    determination of the restitution amount is an “inexact science,” the government
    “need not calculate the victim’s actual loss with laser-like precision, but may
    instead provide a ‘reasonable estimate’ of that amount.” United States v. Martin,
    
    803 F.3d 581
    , 595 (11th Cir. 2015) (first quoting United States v. Huff, 
    609 F.3d 1240
    , 1248 (11th Cir. 2010); then quoting 
    Futrell, 209 F.3d at 1290
    ).
    Notwithstanding the government’s burden to prove the restitution amount, “[t]he
    defendant bears the burden to prove the value of any goods or services he provided
    that he claims should not be included in the restitution amount.” United States v.
    Foster, 
    878 F.3d 1297
    , 1308 (11th Cir. 2018) (ellipsis omitted) (quoting United
    States v. Bane, 
    720 F.3d 818
    , 829 n.10 (11th Cir. 2013)).
    When a district court orders restitution, it “must explain its findings with
    sufficient clarity to enable this [C]ourt to adequately perform its function on
    appellate review.” 
    Huff, 609 F.3d at 1248
    . To that end, the district court must
    131
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    specifically find “whether the victim suffered a loss and the amount of those actual
    losses.”
    Id. at 1249
    (emphasis omitted).
    Here, the district court ordered restitution to insurers BCBS, United
    Healthcare, Medicare, and TriCare for 85% of the payments each insurer made for
    TIRF medications that Ruan and Couch prescribed during the indictment period.
    This percentage was based on evidence that no more than 15% of PPSA patients
    had active cancer and that TIRF medications were indicated only for cancer-related
    pain. Ruan argues that the 85% figure is overstated.
    At sentencing, Ruan and Couch objected to the 85% figure, pointing out that
    Dr. Aultman had opined that it was not inherently illegal to prescribe medications
    off-label and that there was testimony from a BCBS representative that BCBS
    sometimes approved TIRFs for a non-cancer diagnosis. The government responded
    that even if non-cancer patients needed some kind of medication to control their
    pain, there was ample evidence that Ruan and Couch prescribed Abstral and
    Subsys to enrich themselves because they had a financial interest, not for
    appropriate patient care, and that such conduct was also outside the usual course of
    professional practice. Ruan now adds to his argument for the first time that
    deducting only 15% for cancer patients is not enough because the government’s
    charts showed that out of the 25 patients to whom each doctor was prescribing the
    132
    Case: 17-12653       Date Filed: 07/10/2020       Page: 133 of 137
    most TIRF medications, 44% of those patients, or 11 for each doctor, did have
    cancer.
    The evidence at trial does not point to any precise number of TIRF
    prescriptions that were illegal. There is a possibility that PPSA’s few cancer
    patients were prescribed TIRF medications at higher rates than its patients who did
    not have cancer. There may also have been some patients without a cancer
    diagnosis who were legitimately prescribed TIRFs off-label to control extreme
    pain. However, in light of the impracticality of determining which of the thousands
    of TIRF prescriptions were illegal,27 and when one also considers the abundant
    evidence that the appellants prescribed millions of doses of TIRFs for their own
    financial gain (i.e., their investments in Galena stock and their payments as Insys
    speakers) rather than for the legitimate needs of their patients—a practice that
    made them some of the top TIRF prescribers nationwide—we find that 85% of all
    TIRF medications paid for by each insurer is a “reasonable estimate” of the actual
    loss to those insurers. See 
    Martin, 803 F.3d at 595
    .
    27
    We imagine that the only way to compute the exact losses that each insurer incurred by
    paying for TIRF prescriptions written at PPSA would be to present testimony from all of the
    patients who were prescribed TIRFs (over 1,000 during the indictment period) or opinions from
    medical experts who have reviewed their files. A consideration of each patient’s medical needs
    would be necessary to determine whether the prescriptions written were illegal or legitimate. The
    MVRA does not require such “laser-like precision.” 
    Martin, 803 F.3d at 595
    .
    133
    Case: 17-12653     Date Filed: 07/10/2020    Page: 134 of 137
    Moreover, it was Ruan’s burden “to prove the value of any goods or services
    he provided that he claims should not be included in the restitution amount.”
    
    Foster, 878 F.3d at 1308
    (quoting 
    Bane, 720 F.3d at 829
    n.10). But when asked by
    the district court at Couch’s sentencing, which was held first and in which Ruan
    participated and adopted Couch’s counsel’s arguments, “What do you think is a
    more appropriate figure?”, Couch’s counsel stated: “Your honor, I don’t have an
    alternative figure.” It was not enough for Ruan to assert that the government’s
    estimate of the insurers’ loss amount was improper, when that estimate was
    reasonable based on the facts presented at trial. Ruan had to show the value of the
    TIRF prescriptions he wrote that he claims were medically necessary, in order to
    enable the district court to offset them against the restitution amount. See 
    Foster, 878 F.3d at 1308
    ; United States v. Bryant, 
    655 F.3d 232
    , 254 (3d Cir. 2011)
    (emphasizing that the defendant has the burden of establishing offsets to restitution
    because he is in the best position to know the value of the legitimate goods or
    services provided to his victims). Ruan failed to carry that burden.
    Ruan also separately argues that it was error for the district court to have
    ordered restitution to be paid to insurers BCBS, United Healthcare, Medicare, and
    TriCare for 50% of each insurer’s payments for the remaining Schedule II
    prescriptions dispensed by PPSA during the relevant period. This percentage was
    based on trial testimony from Palmer and Parker that at least half of PPSA’s
    134
    Case: 17-12653     Date Filed: 07/10/2020    Page: 135 of 137
    patients were overmedicated or had received prescriptions for larger doses of drugs
    than they needed.
    At sentencing, the government stated that some of the victim insurers felt
    they were entitled to more than 50%—for instance, United Healthcare felt it was
    entitled to 80%—but all four insurers ultimately agreed with the government that
    50% was a fair and accurate calculation based on the trial testimony. The
    government argued that it would be impossible to calculate which particular
    Schedule II prescriptions were illegal and that 50% was a reasonable estimate
    based on the evidence. Ruan and Couch disagreed, arguing that restitution should
    only be ordered for the value of specific prescriptions experts had testified were
    written outside the usual course of professional practice or not for a legitimate
    medical purpose, describing those amounts as “miniscule.”
    As with the TIRF prescriptions, the evidence at trial did not point to any
    precise number of the remaining Schedule II prescriptions as being illegal.
    Calculating the exact amount of loss to each of the four insurers would be
    impractical, if not impossible. The MVRA justifies the use of approximation in
    cases like this, provided the estimate is reasonable and based on a preponderance
    of the evidence. Here, two different nurse practitioners, who had firsthand
    knowledge of PPSA’s patients for years, each testified that at least half of the
    patients were overmedicated or had received prescriptions for larger quantities of
    135
    Case: 17-12653     Date Filed: 07/10/2020   Page: 136 of 137
    drugs than they needed. This testimony was bolstered by the abundant evidence
    that Ruan and Couch’s prescribing habits were consistently outside the usual
    course of professional practice during the indictment period, as evidenced by their
    allowing Palmer to forge prescriptions; leaving pre-signed prescriptions for nurses
    to use; failing to obtain informed consent from patients before writing multiple
    prescriptions for high doses of Schedule II drugs; and ignoring signs of drug
    diversion. Additionally, the 50% estimate was conservative because all of the
    illegal prescriptions were not included in calculating the restitution amount—only
    those for Schedule II drugs, which does not include drugs like benzodiazepines and
    Soma, the other two components of the dangerous “Holy Trinity” cocktail that the
    appellants prescribed so often. See 
    Futrell, 209 F.3d at 1292
    (“So long as the basis
    for reasonable approximation is at hand, difficulties in achieving exact
    measurements will not preclude a trial court from ordering restitution.”). We thus
    cannot say that the district court’s estimate that the insurers were each owed 50%
    of payments they made for Schedule II drugs was speculative to the point of being
    clearly erroneous.
    Additionally, we find that the district court explained its findings with
    sufficient clarity to enable us to perform our duty on appellate review. Ruan’s
    judgment of conviction breaks down the amount of restitution that is owed
    individually by Ruan to each insurer and the amount that Ruan owes jointly and
    136
    Case: 17-12653        Date Filed: 07/10/2020        Page: 137 of 137
    severally with Couch to each insurer. Ruan never objected to the actual losses
    sustained by any insurer, instead objecting only generally to the method of
    calculating the losses.
    For these reasons, the district court did not abuse its discretion in
    determining that the government had proven the restitution amount by a
    preponderance of the evidence.28
    III.   CONCLUSION
    For the foregoing reasons, we vacate Ruan and Couch’s convictions on
    Count 16 of the Superseding Indictment, and we remand the cases to the district
    court for resentencing. We affirm Ruan and Couch’s remaining convictions and
    sentences.
    AFFIRMED IN PART, VACATED AND REMANDED IN PART.
    28
    Ruan also argues that the district court erred in ordering forfeiture because insufficient
    evidence established a RICO Act violation. The government responds that Ruan’s forfeiture
    argument is waived because it was raised in a perfunctory manner without supporting arguments
    or citations, and that, in any event, the RICO conviction was valid. A party seeking to raise a
    claim or issue on appeal must raise it “plainly and prominently” or otherwise the issue is deemed
    abandoned. United States v. Jernigan, 
    341 F.3d 1273
    , 1283 n.8 (11th Cir. 2003). Ruan’s
    argument regarding forfeiture does not appear to be an independent claim that his forfeiture was
    illegal. Rather, his claim appears to be derivative of his claim that insufficient evidence supports
    his RICO conviction. Because we affirm the RICO conviction, we uphold the forfeiture order
    regarding the RICO violation.
    137
    

Document Info

Docket Number: 17-12653

Filed Date: 7/10/2020

Precedential Status: Precedential

Modified Date: 7/10/2020

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