Ronald Miller v. Comm'r of Social Security , 811 F.3d 825 ( 2016 )


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  •                                 RECOMMENDED FOR FULL-TEXT PUBLICATION
    Pursuant to Sixth Circuit I.O.P. 32.1(b)
    File Name: 16a0020p.06
    UNITED STATES COURT OF APPEALS
    FOR THE SIXTH CIRCUIT
    _________________
    RONALD MILLER,                                                    ┐
    Plaintiff-Appellant,      │
    │
    │
    v.                                                     │
    >        No. 15-1405
    │
    COMMISSIONER OF SOCIAL SECURITY,                                  │
    Defendant-Appellee.                    │
    ┘
    Appeal from the United States District Court
    for the Eastern District of Michigan at Detroit.
    No. 2:13-cv-11748—No. 2:13-cv-11748.
    Decided and Filed: January 29, 2016
    BEFORE: STRANCH, DONALD, LIPEZ,* Circuit Judges.
    _________________
    COUNSEL
    ON BRIEF: Ronald D. Glotta, GLOTTA & ASSOCIATES, P.C., Detroit, Michigan, for
    Appellant. Steven A. Budde, SOCIAL SECURITY ADMINISTRATION, Chicago, Illinois, for
    Appellee.
    _________________
    OPINION
    _________________
    LIPEZ, Circuit Judge. Claimant Ronald Miller seeks review of a denial of his application
    for Social Security benefits. On remand from the Appeals Council, an administrative law judge
    (ALJ) determined that Miller was not disabled within the meaning of the Social Security Act and
    *
    The Honorable Kermit V. Lipez, Circuit Judge for the United States Court of Appeals for the First Circuit,
    sitting by designation.
    1
    No. 15-1405                   Miller v. Comm’r of Social Security                   Page 2
    therefore did not qualify for benefits. Miller appealed the decision again, but the Appeals
    Council declined to review it. Miller sought judicial review in the district court, where Miller
    and the Commissioner cross-motioned for summary judgment. Accepting the magistrate judge’s
    recommendation in part and denying it in part, the district court denied Miller’s motion for
    summary judgment and granted the Commissioner of Social Security’s motion, affirming the
    Commissioner’s denial of benefits. Miller’s timely appeal followed.
    The ALJ’s decision is flawed in multiple respects. Hence we cannot conclude that the
    decision is supported by substantial evidence. We therefore vacate the district court’s ruling and
    remand with instructions that the case be returned to the Commissioner for further proceedings.
    I.
    Because Miller’s treatment record both precedes and follows his administrative
    proceedings, we present his treatment history and his claim’s procedural trajectory together in
    chronological order below. We divide this chronology into sections that reflect the information
    contained in the record at each stage of consideration.
    A. The Record Preceding the First ALJ Decision (2006-2008)
    Miller is a single father who, before his alleged disability, held positions as a security
    guard, machine operator, material handler, and a night-club bouncer. In January 2006, Miller
    visited a hospital emergency department with an injured left knee. Miller presented with mild
    degenerative changes and a contusion. Immediately following the injury, Miller did not return to
    work as a night-club bouncer. In May 2006, Miller submitted an application for a period of
    disability, disability insurance benefits, and supplemental security income.       Miller alleged
    disability based on “leg/knee/foot problems” on his left side, with an onset date of February 1,
    2006.
    In July 2006, Sonia Ramirez, M.D., and Mohammad Azimi, M.D., completed
    assessments of Miller in accordance with the Social Security benefits claim process.          Dr.
    Ramirez examined Miller and concluded that Miller was obese and had a “[f]oot drop of the left
    foot, probably secondary to injury and trauma.” Dr. Azimi reviewed Miller’s records and
    No. 15-1405                     Miller v. Comm’r of Social Security                       Page 3
    completed a physical residual functional capacity (RFC) assessment of Miller. Dr. Azimi listed
    diagnoses of left foot drop and obesity, and he determined that Miller could occasionally climb,
    balance, stoop, kneel, crouch, and crawl; stand for at least two hours and sit for at least six hours
    of an eight-hour day; and occasionally lift 20 pounds and frequently lift ten pounds.
    Later that year, Miller attempted to return to work at the night club, but eventually, in
    2007, his employer fired him because he was not able to carry out his responsibilities.
    Subsequently, Miller alleged disability due to depression, as well. In 2008, Miller sought
    treatment for depression at Southwest Counseling Solutions.               There, Leslie Leemgraven,
    L.L.M.S.W., recommended that Miller receive a psychiatric evaluation “due to the severity of
    this [sic] depressive symptoms” and diagnosed Miller with a depressive disorder; adjustment
    disorder with depressed mood; and unspecified drug dependence, in remission. Leemgraven
    assigned Miller a global assessment of functioning (GAF) score of 49. David Vila, M.D., then
    completed a psychiatric examination of Miller, observing that Miller was “tearful and
    depressed.”    Dr. Vila diagnosed Miller with “[m]ajor [d]epression, recurrent, moderate,”
    assigned Miller a GAF score of 50, and recommended a prescription for Paxil and Desyrel.
    In December 2008, an ALJ considered Miller’s claim and determined that he could
    perform a significant number of jobs in the national economy, and therefore he was not disabled
    within the meaning of the Social Security Act. Miller appealed the decision to the Appeals
    Council.
    B. The Appeals Council’s Decision to Remand
    In February 2011, the Appeals Council vacated the ALJ’s 2008 decision and remanded
    the case for further proceedings. The Appeals Council determined that the ALJ’s decision did
    not adequately evaluate Miller’s mental impairments, in part, because a GAF scale rating of
    49 “could indicate a serious impairment in social and occupational functioning.”1 The Appeals
    Council also found that the ALJ’s conclusions about Miller’s RFC—that he could “perform light
    work except for standing/walking for a maximum of 2 hours in an 8-hour day”—were not
    1
    The Appeals Council determined that the ALJ’s decision did not adequately evaluate Miller’s mental
    impairments in accordance with 20 C.F.R. §§ 404.1520a, 416.920a (“Evaluation of mental impairments”).
    No. 15-1405                        Miller v. Comm’r of Social Security                            Page 4
    consistent with the record or with Social Security Administration rulings and regulations.2 The
    Appeals Council ordered an ALJ, on remand, to obtain a consultative mental status evaluation
    and a consultative medical examination of Miller, further develop the vocational evaluation, rule
    in accordance with SSA rulings and regulations, and obtain updated medical records.
    C. The Remainder of the Record Preceding the Second ALJ Decision (2009-2011)
    From 2009 to 2011, Miller continued to seek treatment for his physical and mental
    impairments. This treatment, along with Miller’s consultative examinations ordered by the
    Appeals Council, make up the remainder of the record available to the ALJ who considered
    Miller’s claim on remand.
    In February 2009, Miller received a prescription for a walking cane to address his foot
    drop. The record also includes monthly progress notes for Miller that span a period from
    December 2009 to July 2011. The notes detail Miller’s “leg pain” and “anxiety,” as well as his
    coping methods and his children’s status in school. The identity of the evaluating source is
    unclear.
    In February 2011, “James White, M.D.,” completed a mental RFC assessment of Miller.
    White determined that Miller was either “moderately limited” or “markedly limited”—the most
    severe limitation level—in all but two of the assessment categories. The assessment categories
    measure understanding and memory, sustained concentration and persistence, social interaction,
    and adaptation. In his remarks, White indicated that Miller’s condition required “repetition and
    very close supervision.” The record also reflects that, in 2010, “James White, NP,” ordered
    laboratory testing on Miller. Additional notes reflect treatment in 2009, 2010, and 2011 but do
    not clearly reflect the identity of the provider.
    2
    The Appeals Council found that the ALJ’s conclusions regarding Miller’s functional capacity were not
    determined in accordance with 20 C.F.R. §§ 404.1545, 416.945, which outline the process for determining a
    claimant’s residual functional capacity, and Social Security Ruling 96-8p, which defines a residual functional
    capacity assessment as “an assessment of an individual’s ability to do sustained work-related physical and mental
    activities in a work setting on a regular and continuing basis,” SSR 96-8p, 
    1996 WL 374184
    , at *1 (July 2, 1996).
    The Appeals Council also found that the ALJ’s determination of jobs in the national economy available to Miller did
    not comply with SSR 00-4p, which clarifies the standards for use of vocational experts. SSR 00-4p, 
    2000 WL 1898704
    , at *1 (Dec. 4, 2000).
    No. 15-1405                        Miller v. Comm’r of Social Security                             Page 5
    In March 2011, and in accordance with the Appeals Council’s order, Miller underwent
    two consultative examinations—one from internal medicine physician Ernesto Bedia, M.D., and
    another from psychiatrist Luzbella Imasa, M.D. Dr. Bedia diagnosed Miller with left foot drop,
    hypertension, and type 2 diabetes. Dr. Bedia reported that Miller was “[a]mbulatory with a
    cane,” but that he could “walk without the cane.” Dr. Bedia also noted that Miller had “difficulty
    walking on his toes and heels on the left” and was obese. Dr. Bedia completed a medical source
    statement detailing Miller’s ability to perform work-related activities. Dr. Bedia determined that
    Miller could stand for four hours without interruption and for six hours, with breaks, in an eight-
    hour workday, and that Miller could frequently use both his right foot and his left foot.
    Psychiatrist Imasa recorded that Miller sees a therapist and that his primary care physician
    prescribes antidepressants and hypertension medication. Dr. Imasa indicated that Miller needed
    “therapeutic intervention and support services,” but also that he was able to manage funds. Dr.
    Imasa diagnosed Miller with “[m]ajor depressive disorder and [a] history of poly substance
    dependence in remission” and assigned Miller a GAF score of 50. In a mental medical source
    statement, Dr. Imasa also indicated that Miller had no restrictions interacting appropriately with
    the public, supervisors, or co-workers, but that he had a marked restriction responding
    “appropriately to usual work situations and to changes in a routine work setting.” Dr. Imasa
    attributed this limitation to Miller’s physical impairments.
    In July 2011, Karen Jordan, M.S.W., completed a mental RFC assessment of Miller.
    Jordan determined that Miller was either moderately limited or markedly limited in
    approximately two-thirds of the assessment categories and that he was either not significantly
    limited or exhibited no evidence of a limitation in the remaining categories.
    D. The 2011 ALJ Hearing and Decision
    In August 2011, Miller attended a hearing before a second ALJ to re-consider his claim
    for benefits. At the hearing, Miller testified that he lives with his two young children,3 who
    assist with household chores such as vacuuming and doing the laundry; that he helps his children
    with their kindergarten and first-grade homework; and that every Sunday, he and his children
    3
    Although Miller’s 2011 testimony indicated that he lives alone with his two children, Miller did, at some
    point, also live with his mother, according to the 2008 notes of Leslie Leemgraven, L.L.M.S.W.
    No. 15-1405                   Miller v. Comm’r of Social Security                    Page 6
    take the church-provided bus to attend services. Miller testified that his brother gave him a car
    so he could drive his kids to school, because “everybody knew I was in pain walking the kids
    back and forth to school.” Miller also testified that standing for 45 minutes caused him back and
    leg pain and that, with regard to his depression, he often finds himself crying and takes
    medication to treat his depression. Miller said that he does not stay in close touch with members
    of his family, other than his mother and children, and that he does not have contact with friends.
    A vocational expert (VE) also testified at the 2011 hearing and provided estimates of the
    available jobs for a hypothetical individual with impairments consistent with those claimed by
    Miller. The ALJ asked the VE if an unskilled worker who could walk, stand, and sit up to six
    hours in an eight-hour workday, and had various other limitations, could perform any work
    similar to Miller’s past work. Miller’s attorney objected to the hypothetical as one unsupported
    by the record. Nevertheless, the VE said such an individual would not be able to perform any of
    Miller’s past work and would only be able to work as a hand packager. The ALJ then adjusted
    the hypothetical in a variety of ways, including limiting the individual’s ability to walk to two
    hours (assuming the individual could still stand and sit for six hours), decreasing the exertion
    level, and requiring the individual’s use of a cane to ambulate. The VE testified that such
    restrictions would reduce the pool of jobs available. Finally, the ALJ asked the VE if there were
    any jobs available for an individual with “frequent episodes of pain, depression, memory deficits,
    and a combination of other impairments . . . and [who] could not sit, stand, and/or walk a total of
    eight hours/five days a week on a regular and continuing basis.” The VE testified that such a
    profile “would be preclusive of employment.”
    Following the hearing, the ALJ determined that Miller was not disabled and did not
    qualify for benefits under the Social Security Act because Miller could perform a significant
    number of jobs in the economy.         The ALJ found that Miller had the following severe
    impairments: “left foot drop, degenerative joint disease, hypertension, non-insulin-dependent
    diabetes, obesity, a history of polysubstance dependence, and depression.” However, when
    determining Miller’s residual functional capacity, the ALJ assigned “limited weight” to all but
    No. 15-1405                         Miller v. Comm’r of Social Security                             Page 7
    one of Miller’s medical assessments.4 The only opinion to which the ALJ assigned “significant
    weight” was that of Dr. Azimi. Dr. Azimi’s July 2006 non-examining physical RFC found that
    Miller could carry out a number of activities, including occasionally lifting 20 pounds, unlimited
    pushing and pulling, sitting for six hours, and standing/walking for two hours of an eight-hour
    day.     Dr. Azimi’s assessment of Miller’s postural limitations found that Miller could
    occasionally climb, balance, stoop, kneel, crouch, and crawl. The ALJ viewed Miller’s postural
    limitations as “slightly more restricted” than articulated by Dr. Azimi.
    The ALJ assigned limited weight to Dr. Bedia’s physical consultative examination, which
    found that Miller could stand for six hours in an eight-hour workday, because the ALJ favorably
    determined that Miller was “more restricted” than reflected in Dr. Bedia’s assessment. However,
    the ALJ attributed only limited weight to the 2008 GAF scores of 49 and 50, assigned
    respectively by Leemgraven, L.L.M.S.W., and Dr. Vila. A GAF score of 41–50 “reflects the
    assessor’s opinion that the subject has serious symptoms or serious impairment of social or
    occupational functioning.” Keeton v. Comm’r of Soc. Sec., 583 F. App’x 515, 520 n.2 (6th Cir.
    2014) (quoting Kornecky v. Comm’r of Soc. Sec., 167 F. App’x 496, 511 (6th Cir. 2006)). The
    ALJ explained that she assigned limited weight to the scores because the scores were “not
    proportionate” with Miller’s testimony that he “takes his children to school, he socializes with
    family and friends, and . . . he attends church on Sunday and Wednesday.”
    The ALJ provided similar reasoning for giving limited weight to Dr. Imasa’s March 2011
    GAF assessment of 50, Dr. James White’s 2011 mental RFC assessment, and Social Worker
    Karen Jordan’s 2011 mental RFC assessment. The ALJ also assigned limited weight to Jordan’s
    assessment because she was not a licensed psychiatrist or psychologist. As a result, the ALJ
    determined that, although Miller could not perform any of his past work, he had the residual
    functional capacity to perform light work, he could stand and sit up to six hours, and he could
    4
    An ALJ must “evaluate every medical opinion” she receives. 20 C.F.R. § 404.1527(c). Under the
    “treating physician rule,” an ALJ must accord a treating source’s opinion controlling weight if the opinion is well-
    supported and consistent with the record as a whole. Blakley v. Comm’r of Soc. Sec., 
    581 F.3d 399
    , 406 (6th Cir.
    2009). If an ALJ does not give controlling weight to a treating source’s opinion, when weighing all other
    opinions—i.e., non-treating source opinions—the ALJ must consider several factors when deciding the weight to
    assign to a medical opinion. See 20 C.F.R. § 404.1527(c). These factors include the length and nature of the
    treatment relationship, the supportability of the opinion, the consistency of the opinion with the entire record, and
    the specialization of the opining source. 
    Id. at §§
    404.1527(c)(1)–(6).
    No. 15-1405                       Miller v. Comm’r of Social Security                           Page 8
    walk up to two hours. Based on the VE’s testimony, the ALJ determined that Miller could
    perform jobs that exist in significant numbers in the national economy, such as an office helper
    or a locker room attendant, and therefore found him “not disabled.”
    E. Post-2011 Treatment & Proceedings
    Following the second ALJ’s denial of his claim, Miller received additional treatment
    from November 2011 through December 2012. In March 2013, the Appeals Council denied
    Miller’s request for review of the ALJ’s 2011 decision. Subsequently, Miller sought judicial
    review in district court. In 2015, the magistrate judge recommended that the district court deny
    the Commissioner’s motion for summary judgment and grant in part Miller’s motion for
    summary judgment to clarify James White’s credentials and reassess White’s opinions
    accordingly.5     The district court departed from the recommendation, however, and denied
    Miller’s motion for summary judgment in its entirety. The district court instead granted the
    Commissioner’s motion, finding that the ALJ’s decision was supported by substantial evidence.
    II.
    Miller argues that the ALJ violated Social Security Administration rulings and
    regulations when denying his claim for benefits and that the ALJ’s decision was not supported
    by substantial evidence. With regard to Miller’s physical impairments, Miller argues that the
    ALJ’s reliance on Dr. Azimi’s opinion is not supported by substantial evidence, and the ALJ
    violated Social Security rulings and regulations when she failed to adequately account for all of
    Miller’s impairments, particularly his obesity. Miller also argues that the ALJ’s determinations
    concerning Miller’s mental impairments are not supported by substantial evidence and that the
    ALJ violated Social Security rulings and regulations when she discounted Miller’s consistently
    low GAF scores.         In addition, Miller claims that the district court improperly introduced
    additional evidence concerning the credentials of James White and erred when determining that
    Miller had not established good cause to introduce new evidence about his most recent medical
    treatment.
    5
    As we discuss infra, the record is unclear as to whether James White, M.D., and James White, N.P., are
    the same person and whether treatment notes in the record may be attributed to either. This determination informs
    whether James White is a treating source and whether the ALJ must weigh his opinion accordingly.
    No. 15-1405                   Miller v. Comm’r of Social Security                   Page 9
    A. Standard of Review
    In Social Security cases, we review the district court’s decision de novo. Gentry v.
    Comm’r of Soc. Sec., 
    741 F.3d 708
    , 722 (6th Cir. 2014). Our review of an ALJ’s decision as to
    whether the claimant is disabled is “limited to whether the ALJ applied the correct legal
    standards and whether the findings of the ALJ are supported by substantial evidence.” 
    Blakley, 581 F.3d at 405
    –06. Substantial evidence requires “more than a mere scintilla” but less than a
    preponderance; substantial evidence is such “relevant evidence as a reasonable mind might
    accept as adequate to support a conclusion.” Buxton v. Halter, 
    246 F.3d 762
    , 772 (6th Cir.
    2001); accord 
    Gentry, 741 F.3d at 722
    . Where, however, an ALJ fails to follow agency rules
    and regulations, we find a lack of substantial evidence, “even where the conclusion of the ALJ
    may be justified based upon the record.” 
    Gentry, 741 F.3d at 722
    (quoting Cole v. Astrue,
    
    661 F.3d 931
    , 937 (6th Cir. 2011)).
    B. Physical Impairments
    1. Dr. Azimi
    The ALJ afforded “significant weight” to Dr. Azimi’s July 2006 RFC assessment that
    Miller could, among other things, “stand and/or walk for a total of at least two hours in an 8-hour
    workday, [and] sit for a total of about six hours in an 8-hour workday.” The ALJ found,
    however, that Miller was more restricted than Dr. Azimi’s assessment indicated with regard to
    postural limitations—Dr. Azimi found that Miller could “occasionally” climb, balance, stoop,
    kneel, crouch, and crawl.
    Dr. Azimi did not examine Miller before completing the RFC assessment.                Social
    Security regulations specify that “[g]enerally,” the ALJ assigns "more weight to the opinion of a
    source who has examined you than to the opinion of a source who has not examined you."
    20 C.F.R. § 404.1527(c)(1). The ALJ clearly did not do so here, when she assigned the most
    weight—in fact, the only grant of “significant weight”—to an opinion from Dr. Azimi, a non-
    treating, non-examining state agency medical consultant. To be sure, state agency medical
    consultants, such as Dr. Azimi, are “highly qualified physicians and psychologists who are
    experts in the evaluation of the medical issues in disability claims under the [Social Security]
    No. 15-1405                   Miller v. Comm’r of Social Security                   Page 10
    Act.” SSR 96-6p, 
    1996 WL 374180
    , at *2 (July 2, 1996). Thus, under certain circumstances, an
    ALJ may assign greater weight to a state agency consultant’s opinion than to that of a treating or
    examining source. See 
    id., at *3;
    see also 
    Blakley, 581 F.3d at 409
    . Such circumstances include
    where the non-examining source’s opinion “is based on a review of a complete case record.”
    SSR 96-6p, 
    1996 WL 374180
    , at *3.
    However, that is not the case here. Although the Commissioner explains that Dr. Azimi
    cited Miller’s January 2006 x-ray results and Dr. Ramirez’s 2006 examination findings to
    support his conclusions, Dr. Azimi’s RFC preceded Miller’s post-2006 treatment and could not
    account for subsequent assessments. See 
    Blakley, 581 F.3d at 409
    (finding that non-examining
    sources offered their opinions prior to subsequent assessments from treating sources and
    therefore did not evaluate the complete case record). Where the non-examining source did not
    review a complete case record, “we require some indication that the ALJ at least considered
    these facts before giving greater weight to an opinion” from the non-examining source. 
    Id. (quoting Fisk
    v. Astrue, 253 F. App’x 580, 585 (6th Cir. 2007)). The ALJ gave no such
    indication here and thus did not provide a sufficient explanation for assigning significant weight
    to a non-examining source’s opinion. See id.; see also 20 C.F.R. § 404.1527(c).
    Stranger yet, despite the ALJ’s assignment of significant weight to Dr. Azimi’s opinion,
    the ALJ found that Miller had a residual functional capacity allowing him to “stand up to six
    hours” in an eight-hour workday—exceeding Dr. Azimi’s assessment that Miller could stand “at
    least two hours.” In fact, the ALJ’s determination that Miller could stand for six hours was
    consistent with Dr. Bedia’s opinion, to which the ALJ assigned only limited weight because “the
    claimant is more restricted.” (emphasis added.) Thus, the ALJ’s determination concerning
    Miller’s residual functional capacity (particularly his ability to stand) does not comport with her
    own determination that Dr. Azimi’s assessment should be accorded significant weight.
    2. Obesity
    Miller claims that the ALJ did not consider his obesity in combination with his other
    impairments. Social Security Ruling 02-1p requires an ALJ to consider obesity at steps two
    No. 15-1405                        Miller v. Comm’r of Social Security                             Page 11
    through five of the sequential evaluation process used to determine if an individual is disabled.6
    SSR 02-1p, 
    2002 WL 34686281
    , at *3 (Sept. 12, 2002). The ruling “‘does not mandate a
    particular mode of analysis,’” but it “directs an ALJ to consider the claimant’s obesity, in
    combination with other impairments, at all stages of the sequential evaluation.” Nejat v. Comm’r
    of Soc. Sec., 359 F. App’x 574, 577 (6th Cir. 2009) (quoting Bledsoe v. Barnhart, 165 F. App’x
    408, 411–12 (6th Cir. 2006)). The ALJ satisfies this requirement so long as she credits “RFCs
    from physicians who explicitly accounted for [the claimant’s] obesity.” Coldiron v. Comm’r of
    Soc. Sec., 391 F. App’x 435, 443 (6th Cir. 2010); but see Shilo v. Comm’r of Soc. Sec., 600 F.
    App’x 956, 959 (6th Cir. 2015) (holding that obesity “must be considered throughout the ALJ’s
    determinations, ‘including when assessing an individual’s residual functional capacity’” (quoting
    SSR 02-1P, 
    2002 WL 34686281
    , at *1)).
    At step two, the ALJ took specific care to consider Miller’s obesity and determined that
    Miller’s severe impairments cause “more than minimal functional limitations.”                                  The
    Commissioner argues that although the ALJ’s discussion of obesity ended at step two, the ALJ
    satisfied the requirement to consider obesity at all stages because she relied on a medical opinion
    that acknowledged Miller’s obesity when she gave significant weight to Dr. Azimi’s RFC. See
    Coldiron, 391 F. App’x at 443.             As discussed above, however, we question the basis for
    assigning significant weight to the non-examining opinion of Dr. Azimi. Moreover, the ALJ’s
    findings with regard to Miller’s residual functional capacity did not directly correspond with the
    weight that she assigned to Dr. Azimi’s assessments. This leaves us unable to determine whether
    and to what extent the ALJ considered other parts of Dr. Azimi’s opinion—particularly the
    assessment of Miller's obesity—when determining his functional capacity.
    6
    The ALJ must engage in a five-step sequential evaluation process to determine whether a claimant is
    disabled. See 20 C.F.R. § 404.1520(a)(4). At step one, the ALJ must determine whether the claimant is engaging in
    substantial gainful activity; if the claimant is performing substantial gainful activity, then the claimant is not
    disabled. 
    Id. At step
    two, the ALJ must determine whether the claimant has a medically determinable impairment
    or combination of impairments that is “severe.” 
    Id. If the
    claimant does not have a severe impairment or
    combination of impairments, then the claimant is not disabled. 
    Id. At step
    three, the ALJ must determine whether
    the claimant’s impairment meets an impairment listed in 20 C.F.R. Part 404, Subpart P, Appendix 1. 
    Id. If the
    claimant’s impairment meets or equals one of the listings, then the ALJ will find the claimant disabled. 
    Id. Otherwise, the
    ALJ will proceed to the fourth step, where the ALJ must assess the claimant’s residual functional
    capacity and past work. 
    Id. If the
    claimant can still perform his or her past relevant work, the claimant is not
    disabled. 
    Id. If the
    claimant cannot perform past relevant work, the ALJ must determine whether the claimant can
    make an adjustment to other work at step five. 
    Id. If the
    claimant cannot make the adjustment, the ALJ will find the
    claimant disabled. 
    Id. No. 15-1405
                       Miller v. Comm’r of Social Security                 Page 12
    The ALJ’s limited discussion of Miller’s obesity arguably does not comply with SSR 02-
    1p and certainly casts additional doubt upon whether there exists substantial evidence to support
    the ALJ’s finding that Miller is not disabled.
    C. Mental Impairments
    Miller argues that when the ALJ assigned limited weight to his global assessment of
    functioning (GAF) scores, the ALJ ignored the Appeals Council’s order, incorrectly interpreted
    Miller’s testimony, and incorrectly applied Social Security Ruling 96-8p. A GAF score is a
    "subjective rating of an individual’s overall psychological functioning," which may assist an ALJ
    in assessing a claimant’s mental RFC. Kennedy v. Astrue, 247 F. App’x 761, 766 (6th Cir.
    2007). GAF scores are “not raw medical data,” 
    id., and “the
    Commissioner has declined to
    endorse the [GAF] score for use in” Social Security benefits programs, Lee v. Comm’r of Soc.
    Sec., 529 F. App’x 706, 716 (6th Cir. 2013) (quoting DeBoard v. Comm’r of Soc. Sec., 211 F.
    App’x 411 (6th Cir. 2006)). In spite of this assertion, the Appeals Council referenced Miller’s
    scores of 49 and 50 and their possible implications when it remanded his claim to a second ALJ.
    Thus, although a GAF score is "not essential to the RFC’s accuracy," it nevertheless "may be of
    considerable help to the ALJ in formulating the RFC." Howard v. Comm’r of Soc. Sec., 
    276 F.3d 235
    , 241 (6th Cir. 2002).
    We take a case-by-case approach to the value of GAF scores. Previously, we have
    refused to find that a low GAF score established that the ALJ’s decision was not supported by
    substantial evidence where the ALJ had reason to doubt the credibility of the assigning source;
    the claimant had conflicting GAF scores; the GAF scores were not accompanied by a suggestion
    that the claimant could not perform any work; substantial evidence supported the conclusion that
    the claimant was not disabled; and the VE testified that an individual with the claimant’s
    limitations could still perform a number of jobs. See Kornecky, 167 F. App’x 496, 511 (6th Cir.
    2006). On the other hand, we have looked to consistency among low GAF scores to determine
    that an ALJ minimized the severity of a claimant’s symptoms and failed to provide good reasons
    for assigning limited weight to a treating doctor’s opinion. See Keeton, 583 F. App’x at 529–30,
    530 n.6. We have also looked to the inconsistency between one doctor’s assigned GAF score
    No. 15-1405                        Miller v. Comm’r of Social Security                            Page 13
    and a different doctor’s opinion as a proper basis for rejecting the latter doctor’s opinion.
    See Gribbins v. Comm’r of Soc. Sec. Admin., 37 F. App’x 777, 779 (6th Cir. 2002).
    Miller received GAF scores from three sources: Leslie Leemgraven, L.L.M.S.W., Dr.
    David Vila, and Dr. Luzbella Imasa. All three sources assigned Miller a GAF score of 49 or 50.
    A GAF score of 41-50 "reflects the assessor’s opinion that the subject has serious symptoms or
    serious impairment of social or occupational functioning." Keeton, 583 F. App’x at 520 n.2
    (quoting Kornecky, 167 F. App’x at 511). The Appeals Council, when remanding Miller’s case
    to an ALJ, noted that the GAF score of 49, assigned by Leemgraven, “could indicate a serious
    impairment in social and occupational functioning,” and the evidence did not support the ALJ’s
    2008 finding that Miller’s depression will improve with treatment. The Appeals Council ordered
    a subsequent mental consultative examination; Dr. Imasa conducted the examination and
    assigned Miller a GAF score of 50.
    When determining how much weight to assign the opinion of a non-treating source, such
    as Leemgraven, Vila,7 and Imasa, “the ALJ should consider factors including the length and
    nature of the treatment relationship, the evidence that the physician offered in support of her
    opinion, how consistent the opinion is with the record as a whole, and whether the physician was
    practicing in her specialty.” Ealy v. Comm’r of Soc. Sec., 
    594 F.3d 504
    , 514 (6th Cir. 2010)
    (citing 20 C.F.R. § 404.1527(c)).           Unless an ALJ assigns controlling weight to a treating
    physician’s opinion, the ALJ must consider “all” of the above factors “in deciding the weight
    [the ALJ] give[s] to any medical opinion.”                   20 C.F.R. § 404.1527(c); see also 
    id. at §
    404.1527(e)(2)(ii). On remand, the ALJ assigned limited weight to all three consistent GAF
    scores because they were "not proportionate with the recitation of the claimant’s activities and
    social functioning."8 To support these decisions, the ALJ explained that Miller “testified that he
    7
    Miller argues that psychiatrist David Vila, M.D., is a treating source, whose opinion is entitled to
    controlling weight. See supra note 4. A “treating source” provides treatment to the claimant on an ongoing basis.
    See 20 C.F.R. § 404.1502. However, the record reflects that Dr. Vila treated Miller only once, and “a single visit
    does not constitute an ongoing treatment relationship.” Kornecky, 167 F. App’x at 506. Therefore, the ALJ did not
    err when she did not consider Dr. Vila as a treating source.
    8
    The ALJ did not discuss a separate assignment of weight to the non-GAF portions of Leemgraven, Vila, or
    Imasa’s assessments. However, the non-GAF portion of Dr. Imasa’s opinion, in particular, discusses Miller’s ability
    to interact with the public, supervisors, and co-workers, and the ALJ appears to have incorporated that non-GAF
    portion of the opinion into her determination that Miller could perform work “with occasional contact with the
    No. 15-1405                        Miller v. Comm’r of Social Security                            Page 14
    takes his children to school, he socializes with family and friends, and . . . he attends church on
    Sunday and Wednesday.”
    Miller’s 2011 hearing testimony is not consistent with this finding. Although Miller
    testified that he now drives his children to school, he did not testify that he socializes with family
    and friends. While he maintains some degree of contact with siblings, Miller explicitly said,
    when asked if he stayed in touch with friends, "No. I have -- all of my old friends are still doing
    some of the old things that people do and I have children and I have respect for my household
    and my lifestyle."       Furthermore, Miller testified that he and his children go to church on
    Sunday—not Sunday and Wednesday—and that the church bus picks them up.
    Miller’s 2006 self-completed function report did, however, mention that he went “to
    church on Sunday and Wendsday [sic] when stress and pain isn[’]t overw[h]elming.” He also
    indicated on the form that that he read “a lot,” sometimes watched television and listened to
    music, that “family and friends visit,” but that he did not take part in any social activities since
    his injuries. The ALJ’s reliance on choice excerpts from Miller’s five-year-old function report—
    much of which is superseded by his 2011 hearing testimony—to discount three consistent and
    contemporaneous assessments of Miller’s functional capacity is misplaced and not consistent
    with the record as a whole. See 20 C.F.R. § 404.1527(c)(4). The limited weight assigned does
    not account for consistency among the examining sources and the record as a whole, nor does it
    reflect consideration of the remaining required factors discussed above. Cf. Blankenship v.
    Comm’r of Soc. Sec., No. 14-2464, 
    2015 WL 5040223
    , at *7 (6th Cir. 2015) (“[T]he regulations
    dictate that ‘the more consistent an opinion is with the record as a whole, the more weight we
    will give to that opinion.’” (quoting 20 C.F.R. § 404.1527(c)(4)).
    Miller adds that to the extent the ALJ relied on testimony (regarding his social activity
    and ability to care for his children) to assign limited weight to the GAF scores and conclude that
    general public, coworkers, and supervisors.” While we may look to any evidence in the record to determine whether
    the ALJ’s decision was supported by substantial evidence, Engebrecht v. Comm’r of Soc. Sec., 572 F. App’x 392,
    396 (6th Cir. 2014), we cannot engage in a meaningful review of the ALJ’s decision to support her findings with an
    opinion to which she has not assigned any weight—aside from giving limited weight to the separate GAF portion of
    the opinion. See 20 U.S.C. § 404.1527(c); 
    id. at §
    404.1527(e)(2)(ii) (“Unless a treating source’s opinion is given
    controlling weight," the ALJ "must explain in the decision the weight given to . . . any opinions from treating
    sources, nontreating sources, and other nonexamining sources.”); see also Brooks v. Comm’r of Soc. Sec., 531 F.
    App’x 636, 643 (6th Cir. 2013).
    No. 15-1405                       Miller v. Comm’r of Social Security                           Page 15
    Miller has the functional capacity to perform work, the ALJ did not follow Social Security
    Ruling 96-8p. SSR 96-8p defines an RFC as “an assessment of an individual’s ability to do
    sustained work-related physical and mental activities in a work setting on a regular and
    continuing basis.” SSR 96-8p, 
    1996 WL 374184
    , at *1. “A ‘regular and continuing basis’
    means 8 hours a day, for 5 days a week, or an equivalent work schedule.” Id.; see also 20 C.F.R.
    § 404.1520a(c)(2) (“We will rate the degree of your functional limitation based on the extent to
    which your impairment(s) interferes with your ability to function independently, appropriately,
    effectively, and on a sustained basis.”). Although the ALJ may properly consider Miller’s
    household and social activities when “evaluating a claimant’s assertions of pain or ailments,”
    Keeton, 583 F. App’x at 532 (quoting Walters v. Comm’r of Soc. Sec., 
    127 F.3d 525
    , 532 (6th
    Cir. 1997)), the ALJ must establish that Miller could have performed such activities on a
    “sustained basis” when assessing Miller’s mental impairments, see Gayheart v. Comm’r of Soc.
    Sec., 
    710 F.3d 365
    , 377 (6th Cir. 2013). In Keeton, the court noted that the claimant "spends a
    great deal of time with his family, drives or walks to the local coffee shop, meets with other
    veterans on a daily basis, and assists in chores around the house." 583 F. App’x at 532. Miller,
    however, has no such daily, sustained social interactions, and relies on his small children and
    mother to take care of the home. Miller’s activities are more in line with the claimant in
    Gayheart, who was able to accompany his wife on shopping trips once a month and was able to
    
    drive. 710 F.3d at 377
    . In Gayheart, we held that the ALJ had not sufficiently established that
    such activities allowed the claimant to function independently on a sustained basis. 
    Id. at 377–
    78.
    Similarly, we conclude that the ALJ’s focus on isolated, often stale, portions of the record
    (1) does not offset the record’s consistency with regard to Miller’s assigned GAF scores and
    (2) is an insufficient basis to determine that Miller could conduct work activities on a sustained
    basis, especially in light of the Appeals Council’s original decision to remand for failure to
    adequately evaluate Miller’s mental impairments.9
    9
    With respect to the ALJ’s assessment of his mental impairments, Miller also argues that the ALJ erred
    when she discounted Social Worker Jordan’s mental RFC assessment of Miller, in part, because Jordan “is not a
    licensed psychiatrist or psychologist.” Miller argues that Jordan is a “psychotherapist,” whose opinion should be
    accorded significant weight as an “acceptable medical source.” However, Miller simply identifies Karen Jordan’s
    No. 15-1405                         Miller v. Comm’r of Social Security                             Page 16
    D. New Evidence
    1. Post-September 2011 Treatment Records
    Miller seeks consideration of treatment notes and records completed after the ALJ’s
    September 2011 decision. However, “evidence submitted to the Appeals Council after the ALJ’s
    decision cannot be considered part of the record for purposes of substantial evidence review.”
    Foster v. Halter, 
    279 F.3d 348
    , 357 (6th Cir. 2001). Miller argues that the district court should
    have considered the post-September 2011 treatment notes because the district court was willing
    to introduce its own sources from outside the record to evaluate the separate question of whether
    James White was an acceptable medical source. This tit-for-tat line of reasoning is unavailing.
    The district court simply was not in the position to consider new evidence in “deciding whether
    to uphold, modify, or reverse the ALJ’s decision.” Cline v. Comm’r of Soc. Sec., 
    96 F.3d 146
    ,
    148 (6th Cir. 1996).
    However, consideration of new evidence may be appropriate on remand if the claimant
    can show that the new evidence “is material and that there is good cause for the failure to
    incorporate such evidence into the record in a prior proceeding.” 42 U.S.C. § 405(g); see also
    
    Foster, 279 F.3d at 357
    (stating that the claimant bears the burden of showing that remand is
    appropriate). Miller argues that the evidence was "not available at the time of the original
    hearing," but he fails to establish materiality. New evidence is material “only if there is ‘a
    reasonable probability that the Secretary would have reached a different disposition of the
    disability claim if presented with the new evidence.’” 
    Foster, 279 F.3d at 357
    (quoting Sizemore
    v. Sec’y of Health & Human Servs., 
    865 F.2d 709
    , 711 (6th Cir. 1988)). Miller’s only statement
    to this effect is that “[t]he material subsequent to the ALJ’s decision merely confirmed the
    invalidity of the ALJ’s decision.” Without more, this statement does not establish that the new
    evidence was sufficiently material to require remand, and we therefore agree with the district
    court’s conclusion that Miller failed to demonstrate that remand was appropriate on that basis.
    credentials as “MSW,” and he furnishes no support for the proposition that Jordan meets the definition of a “licensed
    or certified psychologist.” See SSR 06-03, 
    2006 WL 2329939
    , at *1 (Aug. 9, 2006). According to Social Security
    Ruling 06-03p, even a licensed clinical social worker is “not an ‘acceptable medical source,’” and this designation
    may “justify” giving an opinion of an acceptable medical source greater weight. 
    Id. at *2,
    *5. Thus, SSR 06-03p
    does not support Miller’s conclusion that Karen Jordan is an acceptable medical source whose opinion is owed
    deferential weight.
    No. 15-1405                      Miller v. Comm’r of Social Security                     Page 17
    2. James White
    Miller argues that the district court “utilized the internet to establish additional evidence”
    regarding James White’s credentials as an M.D., Ph.D., and/or N.P. The magistrate judge
    recommended that the matter be remanded for clarification as to the identity of James White and
    for reassessment of White’s opinion based on that clarification. The district court declined to
    adopt the magistrate judge’s recommendation concerning the identity of James White, and
    instead found that “[a] simple check of licensed health professionals on the State of Michigan,
    Department of Licensing and Regulatory Affairs website,” identified that James White, Jr. held a
    nurse practitioner license and an expired and surrendered limited psychology license.
    When a court undertakes review of agency action, “consideration of evidence outside the
    administrative record is proper under some circumstances, e.g., ‘for background information . . .
    or for the limited purposes of ascertaining whether the agency considered all the relevant factors
    or fully explicated its course of conduct or grounds of decision.’” Norwich Eaton Pharms., Inc.
    v. Bowen, 
    808 F.2d 486
    , 489 (6th Cir. 1987) (alteration in original) (quoting Asarco, Inc. v. EPA,
    
    616 F.2d 1153
    , 1160 (9th Cir. 1980)). However, we have cautioned that "the reviewing court
    ‘must be careful not to allow such evidence to change the character of the hearing from one of
    review to a trial de novo.’” United States v. Akzo Coatings of Am., Inc., 
    949 F.2d 1409
    , 1428
    (6th Cir. 1991) (quoting Town of Burlington v. Dep’t of Educ., 
    736 F.2d 773
    , 791 (1st Cir.
    1984)).
    The determination of James White’s credentials extends beyond the examples cited in
    Norwich.       Further, in Norwich, the court did not use any evidence from beyond the
    administrative record in reaching its decision. See 
    Norwich, 808 F.2d at 489
    . The same cannot
    be said here, where the information that the district court introduced about James White formed
    the basis for the court’s conclusion that James White was not a treating medical source and the
    ALJ appropriately assigned his opinion limited weight. We therefore decline to accept the
    district court’s decision to introduce evidence outside of the administrative record and base its
    No. 15-1405                          Miller v. Comm’r of Social Security                              Page 18
    conclusion upon this evidence.10 We share the magistrate judge’s conclusion, and, on remand,
    the ALJ should (1) ask the parties to submit evidence that would permit the ALJ to clarify the
    identity or identities of James White, and (2) reassess James White’s opinion(s) in accordance
    with that determination.
    III.
    Although the ALJ’s decision was thorough and thoughtful, the decision’s misperceptions
    of the record and failure to properly follow relevant Social Security rulings and regulations
    prevent us from concluding that the ALJ’s decision is supported by substantial evidence.
    Nevertheless, the record does not allow us to conclude that the claimant is affirmatively entitled
    to an award of benefits, despite the prolonged nature of these proceedings. We therefore
    VACATE the judgment of the district court with instructions to REMAND to the Commissioner
    for further proceedings consistent with this opinion.
    So ordered.
    10
    The district court did not clearly identify its finding with regard to James White’s credentials as a matter
    of judicial notice, and we therefore forego an analysis of the applicability of Federal Rule of Evidence 201, which
    governs judicial notice, to appellate review of administrative decisions. In any event, we question whether this
    would be an appropriate circumstance for judicial notice given the commonality of the name “James White.”