United States v. Hamada Makarita , 576 F. App'x 252 ( 2014 )


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  •                             UNPUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 13-4298
    UNITED STATES OF AMERICA,
    Plaintiff - Appellee,
    v.
    HAMADA MAKARITA,
    Defendant – Appellant.
    Appeal from the United States District Court for the Eastern
    District of Virginia, at Alexandria.     Leonie M. Brinkema,
    District Judge. (1:12-cr-00223-LMB-1)
    Submitted:   October 21, 2013              Decided:   June 26, 2014
    Before TRAXLER, Chief Judge, and GREGORY and THACKER, Circuit
    Judges.
    Affirmed by unpublished per curiam opinion.
    Peter D. Greenspun, Jonathan Shapiro, Mikhail N. Lopez,
    GREENSPUN SHAPIRO P.C., Fairfax, Virginia, for Appellant.   Dana
    J. Boente, Acting United States Attorney, Danya E. Atiyeh,
    Special Assistant United States Attorney, Mazen Basrawi, Special
    Assistant United States Attorney, Gene Rossi, Assistant United
    States   Attorney,  OFFICE   OF  THE  UNITED   STATES  ATTORNEY,
    Alexandria, Virginia, for Appellee.
    Unpublished opinions are not binding precedent in this circuit.
    PER CURIAM:
    Appellant Hamada Makarita (“Appellant”) was convicted
    after    a    jury   trial    of    one     count      of     conspiracy         to    illegally
    dispense       controlled         substances,          five       counts        of     illegally
    dispensing      controlled         substances,         one     count       of    health          care
    fraud, and one count of aggravated identity theft.                                   He appeals,
    raising three issues: (1) the district court should have granted
    his motion for a new trial based on the Government’s alleged
    Brady    v.    Maryland,     
    373 U.S. 83
         (1963),         violations;            (2)   the
    evidence presented at trial was insufficient to convict him; and
    (3) cumulative error deprived him of a fair trial.                                         We have
    reviewed the record and find no reversible error.                                Accordingly,
    we affirm.
    I.
    Appellant,      a    dentist,       owned       and    operated          a    dental
    practice in Oakton, Virginia, called “Fixasmile,” specializing
    in cosmetic dentistry.              On May 24, 2012, Appellant was charged
    in   a   15-count      indictment         with    one       count     of    conspiring            to
    dispense      controlled      substances,           in      violation       of        
    21 U.S.C. §§ 841
    (a)(1)         and    846    (Count        1);     12       counts    of        dispensing
    controlled substances, in violation of 
    21 U.S.C. § 841
    (a)(1)
    (Counts 2-13); one count of health care fraud, in violation of
    
    18 U.S.C. § 1347
        (Count       14);    and       one    count        of    aggravated
    identity theft, in violation of 18 U.S.C. § 1028A (Count 15).
    2
    The   indictment        charged     that     from      2007    to    2012,       Appellant
    “distributed      and    dispensed    thousands         of    dosages      of    scheduled
    medication, including, but not limited to, Dilaudid, Percocet,
    Vicodin, Fentanyl, Valium, Xanax, and other prescription pills,
    to    patients,     employees,        and        girlfriends,        all        without   a
    legitimate   dental       purpose    and     beyond     the    bounds       of   a   dental
    practice.”      J.A. 33. *    Further, the indictment charged Appellant
    with fraudulently billing the health care insurance provider,
    AETNA, for dental services he provided to his family members by
    billing these services under the name of another dentist.
    Appellant’s jury trial began on November 5, 2012, and
    on November 16, 2012, the jury returned guilty verdicts as to
    Counts 1-3, 10, and 12-15.            The jury found Appellant not guilty
    on the remaining seven specific distribution counts.                              On April
    12, 2013, Appellant was sentenced to 25 months imprisonment.
    A.
    At trial, the Government’s witnesses included, Karen
    Derder,   Appellant’s        former        office      manager;      Janet       Williams,
    Appellant’s current office manager; Janet Brumbaugh, Appellant’s
    patient   and    former    girlfriend;           and   Masooda      Azad,    Appellant’s
    former dental assistant.             The Government also presented expert
    *
    Citations to the “J.A.” refer to the Joint Appendix filed
    by the parties in this appeal.
    3
    testimony for each of the distribution counts from Dr. Lawrence
    Singer.       Below is a summary of the evidence presented to support
    each count of conviction.
    1.
    Count One
    Count 1 charged Appellant with conspiracy to illegally
    dispense       controlled            substances      by    directing           “employees     to
    pharmacies to pick up filled prescriptions written in the names
    of     employees         and     patients,       and      further    instruct[ing]           the
    employees to illegally distribute the prescription medications
    back    to    him    for       his   personal     use     and    further       distribution.”
    J.A.    35.         Karen      Derder,       Appellant’s        former    office       manager,
    testified that on April 23, 2009, she filled a prescription from
    Appellant for Fentanyl patches and witnessed him apply one of
    the patches to his body at his dental office.                                  Moreover, Ms.
    Derder       testified      that       she   printed      multiple       prescriptions       for
    controlled substances from the office computer for Appellant’s
    various family members, patients, and friends at the behest of
    Appellant.
    Masooda         Azad,    Appellant’s        former       dental     assistant,
    testified that on July 26, 2007, Appellant wrote a prescription
    for    Valium       in   her     name    and    instructed        her     to    pick    up   the
    medication and return it to him so he could distribute it to
    Reem Hammoud, his girlfriend.                    Ms. Azad also testified that on
    4
    January 24, 2008, Appellant wrote a prescription for Vicodin in
    her name and instructed her to pick it up and return it to him
    for his own personal use.                According to Ms. Azad, she discovered
    for the first time during the investigation of this case from a
    Virginia Prescription Monitoring Program (“PMP”) report shown to
    her by a federal agent that Appellant had written several other
    prescriptions       in       her    name    which    were    filled      at        various
    pharmacies.     Ms. Azad testified when she called Appellant to ask
    why federal agents were inquiring into her prescription history,
    he instructed her to tell the federal agents that he had given
    her some pain medication.                Ms. Azad testified this confused her
    because the only pain medicine Appellant had given her for her
    own use had been topical medication for a mouth sore.
    2.
    Counts Two and Three
    Counts       2    and    3     charged   Appellant    with        illegally
    distributing       or    dispensing         controlled      substances        to     Janet
    Brumbaugh     on     November        13,     2007,   and     January     23,         2008,
    respectively.        Ms. Brumbaugh testified that she began seeing
    Appellant for dental services in 2002, and her relationship with
    him became romantic in 2007.                According to Ms. Brumbaugh, after
    their relationship turned romantic, she would call Appellant to
    get prescriptions for Vicodin and Valium for recreational use,
    and she would consume these controlled substances as well as
    5
    alcohol while on dates with Appellant.                          It was her understanding
    that, in order to obtain the prescriptions, she had to “hang
    out” with Appellant.               J.A. 551.           Ms. Brumbaugh testified that on
    at    least    one        of   these   dates       she       combined       the   Vicodin       with
    alcohol       and    blacked       out.       Either         the     next    day     or    shortly
    thereafter, Appellant sent her photographs that he had taken of
    her while she was incapacitated, which depicted her nude except
    for a jacket and a single boot, lying apparently unconscious on
    his   bed.          The    photograph        was       admitted      into     evidence.          Ms.
    Brumbaugh      further           testified    that       she    was     suffering         from    no
    dental pain at the time and did not tell Appellant she was
    suffering from any dental pain; the medications were solely for
    recreational purposes, and Appellant was well aware that she was
    not using the medications for a legitimate medical purpose.
    Dr.        Lawrence        Singer,         the        Government’s          expert,
    testified that he reviewed Janet Brumbaugh’s patient file and in
    2007, Ms. Brumbaugh had minor dental procedures performed that
    would result in “mild discomfort” at most.                             J.A. 465.          Further,
    after reviewing Ms. Brumbaugh’s record from the Virginia PMP,
    Dr.    Singer        testified       that     between         2007    and     2008     Appellant
    prescribed          Ms.     Brumbaugh       “several         hundred        pills     total”      in
    prescriptions             that    “were      maybe       a    couple        dozen,”       and    Ms.
    Brumbaugh’s patient record was devoid of any clinical notes to
    support this treatment.                   J.A. 466.            Specifically, Dr. Singer
    6
    testified that the Vicodin prescriptions Appellant wrote for Ms.
    Brumbaugh on November 13, 2007, and January 23, 2008, were not
    written within the bounds of dental practice for a legitimate
    dental purpose because there were no records, notes, treatment,
    or anything else in the patient’s records to indicate that this
    treatment was required or even that Ms. Brumbaugh had any dental
    services performed by Appellant.
    3.
    Count Ten
    Count 10 charged Appellant with illegally distributing
    or dispensing a controlled substance to Karen Derder on April
    23, 2009.    Ms. Derder testified Appellant wrote a prescription
    for several boxes of Fentanyl patches in her name and asked her
    to fill it for his own personal use.     According to Ms. Derder,
    Appellant hand wrote the prescription, and she dropped it off at
    a pharmacy the night of April 22, 2009, and picked it up before
    work the next morning.     Ms. Derder testified that upon arriving
    at work the morning of April 23, 2009, she gave the three boxes
    of Fentanyl patches to Appellant and witnessed him apply one to
    his body.    Appellant himself corroborated Ms. Derder’s account.
    Appellant testified, “I was hoping this was something I could
    use as a treatment modality to use for any oral pain.       That’s
    why I used it on myself.    I said, ‘I want to see if it helps my
    back.’”   J.A. 1091.
    7
    Ms. Derder not only worked for Appellant, but was also
    his patient.           The Government’s expert, Dr. Singer, reviewed Ms.
    Derder         patient    file    and       record    from    the    Virginia      PMP.         Dr.
    Singer         testified       that    between       2007    and    2012    Appellant      wrote
    prescriptions for Ms. Derder for what “[a]ll amounted to a few
    hundred         --   several     hundred       doses    of     narcotics.”          J.A.    471.
    Specifically,            Dr.    Singer      testified        that    on    April    23,    2009,
    Appellant prescribed Ms. Derder Fentanyl patches, which are a
    “slow-release formulation of Fentanyl” in a patch applied to the
    skin.          J.A. 473.         According to Dr. Singer, this medicine is
    outside the scope of dentistry or oral surgery and “is only
    appropriate for a chronic pain patient who has cancer pain or .
    .    .    something       extremely         debilitating       and    may    be    chronically
    ill.”          J.A. 474.       Dr. Singer testified that the April 23, 2009
    Fentanyl patch prescription Appellant wrote for Ms. Derder was
    not       written      within         the    bounds     of    dental        practice      for    a
    legitimate dental purpose because there were no clinical notes
    in       her    file   that      would      support     this       treatment      and   because
    Fentanyl has no role in dentistry as it “is a chronic pain
    medication of the highest order.”                     J.A. 475.
    8
    4.
    Counts Twelve and Thirteen
    Counts    12   and   13       charged     Appellant   with    illegally
    distributing     or    dispensing       a    controlled      substance     to    Masooda
    Azad on July 26, 2007, and January 24, 2008, respectively.                            Ms.
    Azad was not only Appellant’s dental assistant, she was also his
    patient.       Ms. Azad testified that on two separate occasions,
    Appellant wrote prescriptions for controlled substances in her
    name,   and    then    asked   her   to      go    to   a   pharmacy,    pick    up   the
    medication, and bring it back to him -- once for Reem Hammoud,
    Appellant’s girlfriend, and once for his own use.                               Ms. Azad
    testified     that     the   first   time         she   complied,   and    brought     a
    prescription for Valium back to Appellant.                    However, she refused
    to fill the second prescription, which was for Vicodin.                            Janet
    Williams, Appellant’s current office manager, confirmed that the
    January 2008 prescription for Vicodin was written in Appellant’s
    handwriting.
    Dr. Singer, the Government’s expert, again testified
    that he reviewed Ms. Azad’s patient file and record from the
    Virginia PMP.         Dr. Singer testified that there were no clinical
    notes to support Appellant’s prescription of Valium on July 26,
    2007.   Dr. Singer emphasized that Ms. Azad was not Appellant’s
    patient until approximately a year after this prescription was
    written.      Dr. Singer also testified that there were no records
    9
    to support Appellant’s January 24, 2008 prescription of Vicodin
    to Ms. Azad.         Dr. Singer opined that these prescriptions were
    not     written     within    the     bounds       of    dental       practice        for     a
    legitimate    dental        purpose    “[b]ecause          there’s        no    treatment,
    there’s no records, and this is a scheduled substance that has a
    high potential for abuse, so there’s no treatment or records to
    support this or even that the patient was a patient of record at
    that time.”       J.A. 462-63.
    5.
    Counts Fourteen and Fifteen
    Counts 14 and 15 charged Appellant with health care
    fraud for billing AETNA, a health care insurance provider, for
    services he provided to his family members and for aggravated
    identity    theft,     respectively.           A    representative             from   AETNA,
    Kathy     Richer,     testified       that     AETNA       has     an     administrative
    services contract with World Bank.                      According to Ms. Richer,
    this means that World Bank pays their own employees’ claims, but
    AETNA    administers       the   contract      or       coverage      policy     and    pays
    claims according to the plan’s guidelines.                        In other words, an
    employee’s    insurance       “claim    is     submitted         by   a   provider,         and
    [AETNA] pay[s] the claim, but it’s actually World Banks’s money
    that’s    paying     the    claim.”      J.A.       403.      After       reviewing         the
    medical insurance plan between World Bank and its employees and
    the contract between World Bank and AETNA, Ms. Richer testified
    10
    that there is a specific exclusion in the documents “stating
    that services cannot be rendered to any family member or person
    related by blood or marriage” by a provider.                     J.A. 404; see also
    J.A. 1266.
    From    2007   to   2012,     World    Bank’s       AETNA-administered
    heath insurance plan provided dental insurance to Appellant’s
    parents.     Karen Derder, Appellant’s former office manager, and
    Janet   Williams,         Appellant’s      current        office    manager,      both
    testified     that    Appellant      was    aware    of    a     provision   in   his
    parent’s health insurance plan that excluded from reimbursement
    procedures performed on a patient by a doctor or dentist who was
    that patient’s family member.               The two also testified that in
    order   to   circumvent      this    provision,      Appellant       submitted     his
    requests for reimbursement for work done on his parents in the
    name of Dr. Sameh Kassem, a dentist who had previously been
    employed by the practice.               Ms. Williams and Ms. Derder both
    testified that when checks arrived from AETNA made out to Dr.
    Kassem, Appellant would forge Dr. Kassem’s signature in order to
    sign the check over to himself, and then deposit the check,
    sometimes    in     his   personal   bank       account    and   sometimes   in    the
    business bank account.           Dr. Kassem testified and confirmed that
    the signatures on the checks were not his, that he had not
    authorized Appellant to bill in his name or to sign checks on
    his behalf, and that he had not performed any dental work on
    11
    Appellant’s       parents.       According      to      Ms.   Richer,       Appellant
    received approximately $91,000 to which he was not entitled by
    engaging in this particular billing practice.
    B.
    After trial, Appellant filed motions for acquittal and
    for a new trial.         These motions alleged the Government committed
    a number of Brady v. Maryland, 
    373 U.S. 83
     (1963), discovery
    violations.        Specifically,       Appellant      claimed       the    Government
    failed to inform him that Karen Derder believed that in exchange
    for    her   testimony     in   this   case,    Special       Agent       Parker,   the
    federal agent investigating this case, would protect her from
    prosecution on unrelated charges for embezzlement in Culpeper
    County,      Virginia.       Appellant   further      claimed       the    Government
    failed to disclose the result of a negative drug test performed
    by    Pre-Trial    Services     on    Appellant      the    day    of     his   arrest.
    Finally,      Appellant      argued    the    Government          was   required    to
    subpoena Ms. Derder’s bank records and provide them to him.                         The
    district court held two post-trial evidentiary hearings before
    ultimately denying Appellant’s motions.
    Although the Government did not present any evidence
    in    response    to   Appellant’s     latter     two      arguments,      i.e.,    the
    negative drug test and Ms. Derder’s bank records, it argued to
    the district court that it had neither in its possession and,
    therefore, the evidence could not be considered Brady evidence.
    12
    The Government argued that the drug test did not fall under the
    purview    of   Brady       because      Appellant’s      counsel     had   actual
    knowledge of the negative result from Appellant himself and the
    result of the test was not within the control of the Government.
    The Government also argued that Ms. Derder’s bank records were
    not subject to Brady because they were also not in its control.
    Further, according to the Government, the bank records would
    have been cumulative impeachment material.
    With   regard     to   the      Culpeper   investigation,       Special
    Agent Parker testified at the first post-trial hearing on March
    15, 2013, that he had instructed Ms. Derder to cooperate and be
    truthful    with      the   Culpeper      investigators      in     order   to     be
    protected under her immunity agreement with the government.                       On
    cross-examination, Special Agent Parker admitted that Ms. Derder
    likely believed “that truthful equaled no prosecution.”                          J.A.
    1431.     However, Ms. Derder testified that she believed that her
    federal immunity agreement in this case would not affect the
    Culpeper investigation at all “[b]ecause the federal immunity
    only applied to the trial of [Appellant].                  It doesn’t apply to
    any context outside of that.”                J.A. 1506.      Further, Detective
    Maria Rodriguez, a detective for the Culpeper County Sheriff’s
    Office    and   the    detective      who     investigated    the    embezzlement
    accusations against Ms. Derder, testified that the federal case
    had no impact on her actions with regard to the investigation.
    13
    At the close of the second hearing, the district court
    denied Appellant’s motions.      With regard to Appellant’s motion
    for a new trial, the district court stated,
    the ultimate question about whether or not
    to grant a new trial is has there been a
    manifest injustice, has an innocent person
    been   wrongly  convicted,  and  you  don’t
    lightly set aside a trial unless there are
    some really significant problems such that
    if you look at the entire record, not just
    one little piece here and one little piece
    there in isolation, if you look at the
    entire record, does it suggest that there
    was, in fact, so many defects that the case
    itself has to be retried.
    J.A. 1590.     Ultimately, the district court concluded Appellant’s
    alleged Brady violations did not meet this standard.
    [M]ost of the issues that you have taken up
    in my view have to do with credibility and
    at most would have been cumulative of the
    significant amount of evidence that the
    . . . defense was able to present that would
    undermine the credibility of not just Derder
    but of the agent as well.
    And,   you    know,   again,   [Appellant’s
    counsel]   put    on   very   effective   cross-
    examination    of    all    the   [G]overnment’s
    witnesses, and they all had [a] certain
    amount of warts, but overall between the
    documentary evidence that was at the trial
    and the testimony of the witnesses, I think
    there is no basis to grant the motion for a
    new trial.      So I’m denying the motion
    . . . .
    J.A. 1612.
    The defendant now appeals to this Court.
    14
    II.
    Appellant          first     argues       the    district       court    erred    by
    denying his motion for a new trial based on the Government’s
    alleged Brady v. Maryland, 
    373 U.S. 83
     (1963), violations.                                  Rule
    33 of the Federal Rules of Criminal Procedure provides, such a
    motion may be granted “if the interest of justice so requires.”
    Fed. R. Crim. P. 33(a).                “We review the district court’s denial
    of   a   motion      for   a    new      trial       under    an    abuse    of     discretion
    standard.”      United States v. Bartko, 
    728 F.3d 327
    , 334 (4th Cir.
    2013).     “It is an abuse of discretion for the district court to
    commit a legal error -- such as improperly determining whether
    there    was    a    Brady      violation        --     and    that     underlying       legal
    determination is reviewed de novo.”                     
    Id. at 338
    .
    Brady held “that the suppression by the prosecution of
    evidence    favorable          to   an    accused       upon       request    violates       due
    process where the evidence is material either to guilt or to
    punishment, irrespective of the good faith or bad faith of the
    prosecution.”         
    373 U.S. at 87
    .                To succeed on his Brady claim,
    “the burden rest[s] on [Appellant] to show that the undisclosed
    evidence       was   (1)       favorable        to     him     either       because    it    is
    exculpatory, or because it is impeaching; (2) material to the
    defense,    i.e.,     prejudice          must    have       ensued;   and     (3)    that    the
    prosecution had materials and failed to disclose them.”                                Bartko,
    728 F.3d at 338 (internal quotation marks omitted).
    15
    Appellant argues the Government violated Brady when it
    (1)   failed     to     provide     information         about   Karen    Derder’s
    understanding of her federal immunity agreement; (2) failed to
    produce the result of Appellant’s negative drug test; and (3)
    failed to provide bank records showing Ms. Derder’s health care
    fraud.
    A.
    Federal Immunity Agreement
    According     to    Appellant,      the     Government      suppressed
    favorable, material evidence as to Karen Derder’s understanding
    of her federal immunity agreement.              Appellant characterizes Ms.
    Derder as a serial perpetrator of frauds and the Government’s
    key witness against him.          Appellant contends that at the time of
    the   trial,    Ms.    Derder     was   under   strong     suspicion     by   state
    authorities     in    Culpeper,    Virginia,     for    embezzlement     from   her
    daughter’s basketball team fund.              Appellant further asserts this
    embezzlement      occurred      well    after     Ms.     Derder    reached     her
    cooperation agreement with the Government, which provided her
    immunity from federal prosecution for her drug and fraud crimes.
    According to Appellant, as developed in the post-trial hearings,
    it was made clear to Ms. Derder by Special Agent Parker that as
    long as she cooperated with the Culpeper authorities, she was
    protected      from    prosecution      from    the     potential    charges    in
    Culpeper.      Appellant argues that this understanding was withheld
    16
    from him, and he was not permitted to pursue questions relating
    to it on cross examination.
    The    Government       disputes      Appellant’s           allegations
    claiming they did not suppress the evidence because it did not
    exist.    According to the Government, Ms. Derder had no belief
    that she would be protected from prosecution by the Culpeper
    authorities.        The Government further argues that even if Ms.
    Derder possessed some undisclosed perceived benefit, it did not
    violate Brady because the evidence was not material as it would
    have been cumulative impeachment of a witness whose credibility
    had already been thoroughly challenged.
    It is well settled law that “[i]mpeachment evidence,
    . . . as well as exculpatory evidence, falls within the Brady
    rule.     Such evidence is evidence favorable to an accused, so
    that,    if    disclosed    and     used    effectively,       it   may    make   the
    difference between conviction and acquittal.”                   United States v.
    Bagley, 
    473 U.S. 667
    , 676 (1985) (internal quotation marks and
    citations omitted).         Additionally, “[w]hen the reliability of a
    given witness may well be determinative of guilt or innocence,
    nondisclosure       of   evidence    affecting     credibility        falls    within
    this general rule.”         Giglio v. United States, 
    405 U.S. 150
    , 154
    (1972) (internal quotation marks omitted).                 To succeed on his
    claim,    however,       Appellant    must      still   show    the       suppressed,
    favorable evidence is material.                 See 
    id.
        Materiality exists
    17
    under the Brady rule “if there is a reasonable probability that,
    had the evidence been disclosed to the defense, the result of
    the proceeding would have been different.”                   Bagley, 
    473 U.S. at 682
    .    “A reasonable probability is a probability sufficient to
    undermine confidence in the outcome.”                 
    Id.
     (internal quotation
    marks omitted).
    Appellant’s        argument    with    respect       to    Karen   Derder’s
    federal immunity agreement fails for two reasons.                           First, Ms.
    Derder specifically testified at the post-trial hearings that
    she had no belief she would be protected from prosecution in the
    Culpeper matter “[b]ecause the federal immunity only applied to
    the trial of [Appellant].”            J.A. 1506.           Second, even assuming
    Ms.    Derder    had     the    requisite        belief    and        the   Government
    suppressed      it,    Appellant’s   argument       nonetheless          fails   as   to
    materiality.          Appellant failed to demonstrate that there is a
    reasonable probability that the outcome of the trial would have
    been different had the defense been able to impeach Ms. Derder
    using this additional material.
    Appellant’s         counsel        conducted     a        thorough   cross
    examination of Ms. Derder.                For example, Appellant’s counsel
    impeached her on the following:
    •    She was terminated by Appellant for making a false claim to
    an insurance company in 2010;
    18
    •     She    submitted         a   false       resume   to    a     doctor       in    Manassas,
    Virginia, in 2010;
    •     She billed an insurance company fraudulently for work not
    done     on    a    patient         and    received      the    money       herself           for
    personal use;
    •     She forged Appellant’s signature on prescriptions;
    •     She made inconsistent statements to the grand jury;
    •     She    made    fraudulent           insurance       claims     on     behalf         of     her
    sister;
    •     She was convicted of writing false checks in 1991; and
    •     She allegedly embezzled from Appellant’s 401(k) plan.
    Thus,    as    the     district       court       pointed      out    in    its     ruling,          Ms.
    Derder was zealously impeached with a variety of material, and
    this alleged          additional       area       of   impeachment,         even        if     it   did
    exist,        would       have       simply       been      cumulative.                 Therefore,
    Appellant’s       claim      fails         because     there     is    not     a    “reasonable
    probability          that,    had      the       evidence      been     disclosed            to     the
    defense,       the        result      of     the       proceeding          would        have        been
    different.”          Bagley, 
    473 U.S. at 682
    .
    B.
    Drug Test and Bank Records
    Next, Appellant argues the Government violated Brady
    when    it    failed       produce     the       result   of    a     negative          drug      test,
    19
    undermining its theme that Appellant abused drugs, and when it
    failed to produce Karen Derder’s bank records.                   According to
    Appellant, the Pre-Trial Services drug test taken on the day of
    Appellant’s arrest was negative, but the Government failed to
    provide the defense with this exculpatory evidence until the
    close   of    evidence.        The    jury   was   eventually     given   this
    information in the form of a jury instruction from the court.
    However, the Government had suggested throughout the trial that
    Appellant had Vicodin or hydrocodone in his system when he was
    arrested.     Furthermore, Appellant contends the Government should
    have produced Ms. Derder’s bank records.             Instead, Appellant was
    forced to subpoena the records himself, which he did not receive
    until the eve of closing argument.
    The Government argues that the drug test was not in
    the possession or control of the Government or any member of the
    trial team, and it did not have the test result in its file.
    Special Agent Parker mistakenly testified (and mistakenly told
    Appellant during his arrest) that the test was performed by the
    United States Marshals.         According to the Government, the test
    was actually performed at the courthouse by Pre-Trial Services,
    an arm of the court, and it was not aware of the result; and
    therefore,    according   to    the    Government,    it   had   no   duty   to
    disclose the result.       Additionally, the Government argues Ms.
    Derder’s bank records were also not in its possession, and the
    20
    Government is not required to affirmatively seek out information
    not already in its possession and deliver it to the defendant.
    Appellant’s claims with regard to the drug test and
    Ms. Derder’s bank records fail for the fundamental reason that
    Appellant failed to demonstrate “that the prosecution had [the]
    materials and failed to disclose them.”                       Bartko, 728 F.3d at
    338.     Brady does not require the Government to investigate the
    defense’s theory of the case or create evidence that might be
    helpful       to   the   defense.         This   fundamental        element       of    Brady
    requires Appellant to show that the Government “suppressed” the
    evidence in question, either willfully or inadvertently.                                  See
    United States v. King, 
    628 F.3d 693
    , 701-02 (4th Cir. 2011).
    Simply, “[s]uppressed evidence is ‘information which had been
    known to the prosecution but unknown to the defense.’”                                 Spicer
    v.   Roxbury       Corr.   Inst.,    
    194 F.3d 547
    ,     557   (4th        Cir.    1999)
    (quoting       United    States     v.    Agurs,    
    427 U.S. 97
    ,    103    (1976)).
    Neither the drug test result nor Ms. Derder’s bank records were
    suppressed by the Government as they were not information known
    to the prosecution but unknown to the defense.                            The Government
    is     only    obligated     to     disclose        favorable       evidence       in    its
    possession.        Therefore, Appellant’s claim here fails.
    Moreover,     the         district     court      gave       a     curative
    instruction to the jury concerning the result of Appellant’s
    drug test.         The district court’s instruction informed the jury
    21
    of the negative result of Appellant’s drug test and instructed
    them to disregard any testimony provided by federal agents that
    made    reference       to    and   suggested          Appellant      had      Vicodin    or
    hydrocodone in his system when he was arrested.                                Even if an
    inadvertent Brady violation had occurred, the district court’s
    curative    instruction        properly        cured    any   potential        prejudicial
    effect.     There is, therefore, no reasonable probability that a
    different verdict would have been resulted.
    III.
    Appellant additionally maintains that his convictions
    rest on insufficient evidence.                      “We review the sufficiency of
    the    evidence    de    novo.        A       defendant    bringing      a     sufficiency
    challenge      must     overcome      a       heavy    burden,     and      reversal     for
    insufficiency must be confined to cases where the prosecution’s
    failure is clear.”           United States v. McLean, 
    715 F.3d 129
    , 137
    (4th    Cir.     2013)       (internal         quotation      marks      and     citations
    omitted).        We   “affirm       the       jury    verdict    when,       ‘viewing    the
    evidence in the light most favorable to the prosecution, [it] is
    supported by ‘substantial evidence,’” United States v. Hager,
    
    721 F.3d 167
    , 179 (4th Cir. 2013) (quoting United States v.
    King, 
    628 F.3d 693
    , 700 (4th Cir. 2011)).                       “Substantial evidence
    consists    of    evidence     that       a    reasonable     finder     of    fact    could
    accept as adequate and sufficient to support a conclusion of a
    defendant’s guilt beyond a reasonable doubt.”                      King, 
    628 F.3d at
    22
    700 (internal quotation marks omitted).                             “As both the Supreme
    Court    and    this       Court     have    recognized,           appellate     reversal     on
    grounds of insufficient evidence will be confined to cases where
    the prosecution’s failure is clear.’”                          Hager, 721 F.3d at 179
    (internal quotation marks and alterations omitted).
    A.
    Controlled Substances Convictions
    Appellant       argues       there     was    insufficient         evidence    to
    support     his       conviction       for     conspiracy          because      the     evidence
    failed    to    demonstrate          any     agreement        to    illegally         distribute
    controlled          substances       between    him     and        any   other    individual.
    Appellant       contends       that     although        the       conspiracy      allegations
    centered on Masooda Azad and Karen Derder, there was never any
    agreement between the alleged members of the conspiracy.                                 To the
    contrary, the Government argues the evidence was sufficient to
    convict Appellant of conspiracy because both Ms. Azad and Ms.
    Derder     testified         they     agreed     to    pick        up    prescriptions       for
    Appellant.
    To    prove    a     conspiracy,       the     Government         must    present
    evidence       of     an    agreement        between        two     or   more     persons     to
    illegally distribute controlled substances.                              See United States
    v. Burgos, 
    94 F.3d 849
    , 860 (4th Cir. 1996) (en banc).                                      “The
    presence       of    a     knowing    and    voluntary        agreement         distinguishes
    conspiracy          from    the      completed      crime         and    is    therefore      an
    23
    essential element of the crime of conspiracy.”                         United States v.
    Hackley, 
    662 F.3d 671
    , 679 (4th Cir. 2011).
    Here, viewing the evidence in the light most favorable
    to    the   prosecution,        Appellant’s         conviction    for    conspiracy     is
    supported      by     substantial    evidence.             Testimony    from   both    Ms.
    Derder and Ms. Azad established that Appellant entered into an
    agreement with each of them to pick up prescriptions in their
    own    names    and    deliver    them    to    Appellant,        either   for   him    to
    illicitly      deliver     to    others,       or    for    his   own    personal     use.
    Although Appellant’s testimony contradicted the testimony of Ms.
    Derder and Ms. Azad, the jury elected to credit their testimony
    over Appellant’s.         We find no reason to overturn this reasonable
    determination by the finder of fact.
    Appellant also claims there was insufficient evidence
    to support his distribution offenses.                      However, after a careful
    review of the record, we conclude substantial evidence clearly
    supports that Appellant distributed and dispensed a variety of
    controlled substances for recreational purposes and not for a
    legitimate medical and dental purpose.                       Therefore, Appellant’s
    argument is without merit.
    B.
    Health Care Fraud Conviction
    As   previously      explained,        Appellant     performed    dental
    work    for     his     parents     and    submitted         insurance     claims      for
    24
    reimbursement to their medical insurance plan from World Bank,
    which was administered by AETNA, but he submitted the claims in
    the name of Dr. Kassem rather than in his own name.                                       According
    to the Government, Appellant submitted claims in Dr. Kassem’s
    name because he believed, based on his understanding of the plan
    provisions,          that     AETNA     would     not         reimburse           him    unless      he
    misrepresented          that    the     work     was        performed        by     a    non-family
    member.        By doing so, Appellant received reimbursement checks to
    which     he     was     not    entitled.              This         formed    the        basis      for
    Appellant’s conviction for health care fraud.
    Appellant challenges this conviction by first arguing
    there was insufficient evidence because the Government failed to
    prove     that       Appellant        was   a    party         to     the     AETNA       contract.
    According       to     Appellant,       because        he     was     not     a    party       to   the
    contract,        he     was    not      bound        by       its    terms        that     excluded
    reimbursement for work performed on family members.                                            Without
    this    foundation,           Appellant         argues         the     evidence          could      not
    establish that he formed the specific intent to defraud AETNA.
    We are not persuaded by this line of argument.
    The     health     care      fraud         statute       pursuant          to     which
    Appellant       was    convicted       makes      it      a    crime     to       “knowingly        and
    willfully       execute[],       or     attempt[]             to    execute,        a    scheme      or
    artifice . . . to defraud a health care benefit program.”                                            
    18 U.S.C. § 1347
    (a)(1); see also McLean, 715 F.3d at 136.                                              “The
    25
    specific intent to defraud may be inferred from the totality of
    the circumstances, and need not be proven by direct evidence.”
    McLean, 715 F.3d at 140.
    After careful review of the record, we conclude there
    was substantial evidence to support Appellant’s conviction for
    health care fraud.           As an initial matter, whether Appellant was
    a party to the insurance contract or not is not relevant to
    whether he       formed     the    specific         intent      to    commit    health      care
    fraud.        Indeed, the fraud occurred when Appellant submitted a
    claim    for    reimbursement           in    the    name    of      Dr.   Kassem     when   in
    reality Appellant himself performed the dental work.                                 Based on
    the    plan    itself      and    the    testimony         of   Kathy      Richer,     it    was
    evident       that   the     AETNA/World            Bank    plan      excluded       “services
    furnished by persons who are related to insured person in any
    way by blood or marriage.”                   J.A. 1266.           The testimony of both
    Karen Derder and Janet Williams established that Appellant was
    aware of this provision, and to circumvent it, he deliberately
    submitted claim forms for his parents to appear as though the
    work     he     performed         had        been     performed        by      Dr.    Kassem.
    Additionally, both Ms. Derder and Ms. Williams testified that
    Appellant received checks made out to Dr. Kassem and signed them
    over to himself.           The evidence was more than sufficient to show
    that Appellant made the false representations to AETNA knowingly
    26
    and   willfully,          in   order     to     receive       money    to    which     he    was
    otherwise not entitled.
    Appellant          further       argues       the    evidence         failed    to
    demonstrate that AETNA was a health care benefit program.                                     We
    disagree.
    A    “health       care    benefit       program”       is    defined    by    the
    statute as “any public or private plan or contract, affecting
    commerce, under which any medical benefit, item, or service is
    provided to any individual.”                  
    18 U.S.C. § 24
    (b).             After a review
    of the record, we conclude, there was substantial evidence to
    establish         AETNA    was    a     health       care    benefit       plan     under    the
    statute.      The evidence showed AETNA was the agent of World Bank
    for purposes of administering its health care plan, which was a
    public or private plan or contract, affecting commerce, under
    which   any       medical      benefit,       item,    or    service       was    provided    to
    individuals.              Substantial         evidence        demonstrated          that     the
    AETNA/World Bank plan provided health insurance coverage to the
    plan participants, that AETNA administered that plan, acting as
    World   Bank’s       agent,       and    that    AETNA        received      the     fraudulent
    insurance claims submitted by Appellant.                          Therefore, we conclude
    that, viewing the evidence in the light most favorable to the
    prosecution,        Appellant’s         conviction          for   health     care    fraud    is
    supported by substantial evidence.
    27
    C.
    After    careful    review          of   the     record,         we   further
    conclude   Appellant’s     claim     of    cumulative       error      based      on   the
    district court’s admission of a semi-explicit photograph and on
    the   district   court’s    limitation         on   the    amount      of    cumulative
    patient witnesses Appellant could call is without merit.
    IV.
    For     the   foregoing        reasons,        the    judgment        of    the
    district   court    is   affirmed.        We    dispense        with   oral      argument
    because the facts and legal contentions are adequately presented
    in the materials before this court and argument would not aid
    the decisional process.
    AFFIRMED
    28