Kaiser Foundation Hospitals v. Kathleen Sebelius , 708 F.3d 226 ( 2013 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued November 7, 2012             Decided March 5, 2013
    No. 12-5037
    KAISER FOUNDATION HOSPITALS, DOING BUSINESS AS KAISER
    FOUNDATION HOSPITAL - ANAHEIM, DOING BUSINESS AS
    KAISER FOUNDATION HOSPITAL - BELLFLOWER, DOING
    BUSINESS AS KAISER FOUNDATION HOSPITAL - FONTANA,
    DOING BUSINESS AS KAISER FOUNDATION HOSPITAL - HARBOR
    CITY, DOING BUSINESS AS KAISER FOUNDATION
    HOSPITAL - PANORAMA CITY, DOING BUSINESS AS KAISER
    FOUNDATION HOSPITAL - RIVERSIDE, DOING BUSINESS AS
    KAISER FOUNDATION HOSPITAL - SAN DIEGO, DOING BUSINESS
    AS KAISER FOUNDATION HOSPITAL - SUNSET, DOING BUSINESS
    AS KAISER FOUNDATION HOSPITAL - WEST LOS ANGELES,
    DOING BUSINESS AS KAISER FOUNDATION
    HOSPITAL - WOODLAND HILLS,
    APPELLEE
    v.
    KATHLEEN SEBELIUS, SECRETARY OF THE UNITED STATES
    DEPARTMENT OF HEALTH AND HUMAN SERVICES,
    APPELLANT
    Appeal from the United States District Court
    for the District of Columbia
    (No. 1:11-cv-00092)
    2
    Howard S. Scher, Attorney, U.S. Department of Justice,
    argued the cause for appellant. With him on the briefs were
    Stuart F. Delery, Acting Assistant Attorney General, Ronald
    C. Machen Jr., U.S. Attorney, and Michael S. Raab, Attorney.
    R. Craig Lawrence, Assistant U.S. Attorney, entered an
    appearance.
    Jordan B. Keville argued the cause for appellee. With
    him on the brief was Jonathan P. Neustadter. Harry R. Silver
    entered an appearance.
    Before: ROGERS, BROWN and KAVANAUGH, Circuit
    Judges.
    Opinion for the Court filed by Circuit Judge BROWN.
    BROWN, Circuit Judge: The Kaiser plaintiffs (“Kaiser”)
    are a consortium of ten teaching hospitals located in Southern
    California that receive Medicare payments to offset the costs
    associated with training “full-time equivalent” residents and
    intern physicians (“FTEs”). In 1997, Congress capped those
    payments in such a way that the number of FTEs the hospitals
    trained in 1996 would dictate the maximum reimbursement in
    all future years. Although Kaiser and the Health and Human
    Services Secretary (“Secretary”) agree the 1996 data is not
    accurate, the Secretary believes this predicate fact cannot be
    corrected outside the three-year reopening window, 
    42 C.F.R. § 405.1885.1
     Concluding otherwise, the District Court granted
    Kaiser’s motion for summary judgment and remanded to the
    agency. Kaiser Found. Hosps. v. Sebelius, 
    828 F. Supp. 2d 1
    Technically, the Secretary has adopted the views of the
    Administrator of the Centers for Medicare and Medicaid Services
    (“CMS”).
    3
    193, 204 (D.D.C. 2011). Unpersuaded by the Secretary’s
    narrow, arbitrarily applied interpretation, we affirm.
    I
    A
    As the District Court explained:
    The Medicare program, established under Title
    XVIII of the Social Security Act and administered
    through CMS, provides federally funded health
    insurance to eligible aged or disabled persons. See
    generally 
    42 U.S.C. § 1395
     et seq. Under the
    program, the Department of Health and Human
    Services “reimburses medical providers for services
    they supply to eligible patients.” Northeast Hosp.
    Corp. v. Sebelius, 
    657 F.3d 1
    , 2 (D.C. Cir. 2011); see
    generally 
    42 U.S.C. § 1395
     et seq. In order to be
    reimbursed, hospitals must submit an annual cost
    report detailing the expenses they incurred during the
    past fiscal year. See 
    42 C.F.R. §§ 413.20
    , 413.24. The
    Secretary has contracted with fiscal intermediaries to
    audit cost reports, determine how much Medicare
    owes each provider, and issue interim payments. See
    42 U.S.C. § 1395h; 
    42 C.F.R. § 405.1803
    .
    Among other things, Medicare reimburses
    approved teaching hospitals for the direct costs of
    graduate medical education (GME) — e.g., salaries
    and benefits for residents and interns. See 
    42 C.F.R. § 413.75
    . The amount of GME reimbursement is
    based in part on the number of FTEs in the hospital’s
    training      program.       See       42      U.S.C.
    § 1395ww(d)(5)(B)(ii); 
    42 C.F.R. § 413.79
    (d). In
    4
    1997, Congress imposed a cap on the number of
    FTEs a hospital may include for purposes of
    calculating future GME payment, which is known as
    the “GME FTE cap.” See 42 U.S.C.
    [§] 1395ww(h)(4)(F); 
    42 C.F.R. § 413.79
    (c)(2)(i).
    Specifically, for cost-report periods beginning on or
    after October 1, 1997, the hospital’s unweighted FTE
    count — meaning the actual number of FTEs before
    applying statutorily specified weighting factors —
    “may not exceed the number . . . of such full-time
    equivalent residents for the hospital’s most recent
    cost reporting period ending on or before December
    31, 1996.” 42 U.S.C. [§] 1395ww(h)(4)(F). In other
    words, the FTE count a hospital included in its latest
    pre-1997 report would determine its cap (and thereby
    affect its reimbursement) for the indefinite future.
    Hospitals’ pre-1997 reports included only a
    weighted FTE count. See 
    62 Fed. Reg. 46,004
    (V)(I)(2)(a). Because the FTE cap is calculated
    based on the unweighted count, and additional data
    needed to be collected to calculate that figure, the
    caps were not established until the providers’ first
    cost report for the period beginning on or after
    October 1, 1997 — which for [Kaiser] was filed in
    1998. 
    Id. at 46,004, 46,005
    ; see also 
    42 C.F.R. § 413.79
    . “FTE count,” therefore, refers to the
    weighted figure provided in the hospitals’ pre-1997
    cost reports, and “FTE cap” refers to the cap
    established thereafter based on the unweighted FTE
    count.
    Once the GME FTE cap is established, the
    intermediary takes it into account when reviewing a
    hospital’s cost reports. See 
    42 C.F.R. § 413.79
    . After
    5
    such review, the intermediary issues a “notice of
    program reimbursement” (NPR) indicating how much
    Medicare owes the hospital for the fiscal year covered
    by the report. See 
    42 C.F.R. § 405.1803
    . The hospital
    has 180 days from receipt of the NPR to request a
    review by the Provider Reimbursement Review
    Board (PRRB). See 42 U.S.C. § 1395oo(a). If the
    hospital does not timely appeal the NPR, the cost
    report is considered final. See 
    42 C.F.R. § 405.1807
    (c).
    The     reimbursement     determination      may
    nevertheless be reopened — upon a provider’s
    request or at the intermediary’s own initiative —
    within three years of the date of the NPR. . . . Once
    three years has passed, the intermediary’s
    determination is deemed “closed” and can no longer
    be reopened.
    Kaiser, 828 F. Supp. 2d at 195–96.
    B
    Before this litigation began, a separate group of Northern
    California-based Kaiser hospitals complained clinic-based
    residents were mistakenly excluded from their “Indirect
    Medical Education” (“IME”) resident FTE count. The PRRB
    agreed these residents should be included, see Kaiser Found.
    Grp. v. Aetna Life Ins. Co., PRRB Dec. No. 96-D50 (Aug. 14,
    1996), and the CMS affirmed, see Kaiser Found. Grp. v.
    Aetna Life Ins. Co., HCFA Administrator Decision (Oct. 21,
    1996) reprinted in [1996–2 Transfer Binder] Medicare &
    Medicaid Guide (CCH) ¶ 44,980. Following suit, the present
    Kaiser plaintiffs requested a similar adjustment in their own
    IME resident FTE count but “did not request a similar
    6
    adjustment for GME purposes in their 1996 cost reports.”
    Appellant Br. at 14.
    This oversight would haunt Kaiser. For years, Kaiser’s
    intermediary used the inaccurate resident FTE count from the
    1996 cost report coupled with additional data from the 1998
    cost report — the “predicate facts” — to generate artificially
    low GME FTE caps.2 Kaiser only challenged the errant data
    in its appeal of the intermediary’s handling of the 1999–2003
    cost reporting years. By then, however, the 1996 and 1998
    cost reporting years were “closed.” They had fallen outside of
    the three-year reopening window.
    Accepting as much, Kaiser forswears any direct
    challenge to the 1996 and 1998 cost reports. Although the
    intermediary would have to adjust the total reimbursement for
    the open cost reporting years 1999–2003 using the corrected
    GME FTE cap, nothing, Kaiser maintains, would necessitate
    an adjustment to the total reimbursement from either closed
    reporting period. In other words, Kasier does not believe its
    challenge would have improper retroactive effect because the
    intermediary would not have to reopen any closed cost report.
    See Appellee Br. at 11.
    The intermediary was unconvinced. Any modification of
    the data underlying the 1996/1998 GME FTE cap, it reasoned,
    would constitute a reopening of closed years even if it did not
    affect Kaiser’s final reimbursement determination. See
    Kaiser, 828 F. Supp. 2d at 197. The PRRB agreed with
    Kaiser’s position. See Kaiser Found. Hosps. v. Palmetto
    GBA/First Coast Serv. Options, PRRB Dec. No. 2011-D1
    (Oct. 1, 2010). But the CMS Administrator, after sua sponte
    2
    A higher FTE cap would have allowed Kaiser to claim —
    and presumably obtain — greater reimbursements.
    7
    review, did not. See Kaiser Found. Hosps. v. Palmetto
    GBA/First Coast Serv. Options, HCFA Administrator
    Decision (Nov. 30, 2010). Because the Administrator’s
    reversal constituted the final decision of the Secretary, see 42
    U.S.C. § 1395oo(f), Kaiser renewed its challenge in the
    District Court.
    Finding in Kaiser’s favor, the District Court granted
    Kaiser’s motion for summary judgment and remanded the
    matter to the agency. See Kaiser, 828 F. Supp. 2d at 204.
    Assuming arguendo that the FTE cap was tied to a specific
    cost report, the court concluded modifying FTE counts in
    closed years did not constitute a “reopening.” The Secretary’s
    interpretation ran afoul of the plain language of the reopening
    regulation, id. at 199–200, and, among other shortcomings,
    contravened recent cases in which the Secretary took contrary
    positions, id. at 200–02. The Secretary appealed.
    On appeal, the agency advances two sets of arguments.
    First, changes to predicate facts in closed years constitute an
    impermissible reopening under § 405.1885. Second, and in
    the alternative, even if the modification of predicate facts in a
    closed year does not itself amount to a reopening, the change
    will necessitate an adjustment of that year’s reimbursement,
    which all parties agree constitutes an impermissible
    reopening. We consider each argument in turn.3
    II
    A
    3
    Like the District Court, we assume arguendo that the cap is
    tied to particular cost reports. Kaiser, 828 F. Supp. 2d at 199.
    8
    In relevant part, the Secretary’s reopening regulation
    provides:
    A determination of an intermediary . . . may be reopened
    with respect to findings on matters at issue in such
    determination . . . . Any such request to reopen must be
    made within 3 years of the date of the notice of the
    intermediary . . . decision . . . .
    
    42 C.F.R. § 405.1885
    (a) (2001).4 For a provider like Kaiser
    that has filed cost reports pursuant to 42 C.F.R §§ 413.20 and
    413.24(f), “Intermediary determination” is defined as:
    a determination of the amount of total reimbursement due
    the provider, pursuant to § 405.1803 following the close
    of the provider’s cost reporting period, for items and
    services furnished to [Medicare] beneficiaries for which
    reimbursement may be made on a reasonable cost basis
    under Medicare for the period covered by the cost report.
    
    42 C.F.R. § 405.1801
    (a). In simpler terms, § 405.1801(a)
    speaks of inputs and outputs — the “items and services
    furnished” and the “amount of total reimbursement due,”
    respectively.
    In Kaiser’s view, the reference to “total amount of
    reimbursement” establishes that “a cost report [is] only . . .
    ‘reopened’ . . . where there is a change to the total amount of
    4
    Although the reopening regulation was amended in 2008, the
    court below “cited to this version without explanation.” Appellant
    Br. at 5 n.3. We agree with the Secretary, however, that the
    “oversight is irrelevant.” Id. The operative language remained the
    same. Compare 
    42 C.F.R. § 405.1885
    (a) (2001), with 
    42 C.F.R. § 405.1885
    (a)(1), (b)(2) (2010).
    9
    Medicare compensation paid to a provider.” Appellee Br. at
    21. In contrast, “reconsideration of predicate factual issues”
    with no effect on closed reimbursements does not reopen the
    report. 
    Id.
     Meaning, the intermediary will only have reopened
    a “determination” subject to the three-year reopening window
    if it adjusts the output, not the inputs.
    The Secretary, by contrast, believes inputs matter
    independently of the output. In her view, toggling an input
    would constitute a reopening of an “Intermediary
    determination” irrespective of its effect on the output.
    Consequently, any alteration of predicate facts must be done
    within the three-year reopening window. The Secretary
    argues the output language cannot be read without reference
    to the input language since it is “difficult to imagine that the
    ‘amount owed’ can in any sense be separated from the data
    upon which it is based.” Appellant Br. at 25, 28. In like vein,
    the Secretary also maintains that § 405.1801(a)’s cross-
    reference to 
    42 C.F.R. § 405.1803
     is suggestive because the
    latter’s requirement of notice “[e]xplain[ing] the
    intermediary’s determination of total program reimbursement
    due,” 
    id.
     § 405.1803(a)(1)(i), “will necessarily refer to the
    data (or predicate facts) upon which the total reimbursement
    is based.” Appellant Br. at 25.
    The Secretary thinks her interpretation is entitled to
    deference under Bowles v. Seminole Rock & Sand Co., 
    325 U.S. 410
     (1945), and its progeny. We disagree. Although
    courts will normally give “controlling weight” to an agency’s
    interpretation of its own regulations, Thomas Jefferson Univ.
    v. Shalala, 
    512 U.S. 504
    , 512 (1994) (internal quotation
    marks omitted), deference is unmerited where the
    interpretation is “plainly erroneous or inconsistent with the
    regulation . . . .” Ass’n of Private Sector Colls. & Univs. v.
    Duncan, 
    681 F.3d 427
    , 442 (D.C. Cir. 2012) (internal
    10
    quotation marks and citations omitted). Believing the
    Secretary’s interpretation to be inconsistent with her own
    regulations, we decline the invitation to defer.
    To start, we think the plain language of § 405.1801(a)(1),
    which defines “determination of an intermediary,” a phrase
    that appears in the reopening regulation, too suggestive to
    ignore. Where the term “determination” is both spatially
    proximate to — and logically bound with — “total
    reimbursement,” an output, the mere mention of inputs in a
    separate, subsequent clause does not automatically render
    those inputs material to the definition.5 Indeed, contextual
    clues lead us to believe that the reference to inputs is more
    likely illustrative than essential. Consider, for example, the
    structure of § 405.1801(a), which consists of four context-
    dependent definitions of “Intermediary determination.” When
    speaking of “a hospital that receives payments for inpatient
    hospital services under the prospective payment system,” the
    phrase is defined as:
    a determination of the total amount of payment due the
    hospital, pursuant to § 405.1803 following the close of the
    hospital’s cost reporting period, under that system for the
    period covered by the determination.
    
    42 C.F.R. § 405.1801
    (a)(2). But for the descriptive final
    clause, the operative language in this provision and
    § 405.1801(a)(1) would be functionally indistinguishable.
    5
    Both parties agree that the “total reimbursement” is
    “material” because any effort to adjust this figure would necessarily
    constitute a reopening of an intermediary determination. Their
    dispute turns instead on whether the intermediary’s toggling of the
    inputs would, on its own, do the same. This is what we mean when
    we speak of materiality — an intermediary action capable of
    triggering § 405.1801(a)(1) and, in turn, the reopening provision.
    11
    Compare id. § 405.1801(a)(1) (“a determination of the
    amount of total reimbursement due the provider), with id.
    § 405.1801(a)(2) (“a determination of the total amount of
    payment due the hospital”). This is by no means dispositive
    indicium of the agency’s intent, but we do think it suggestive.
    A functional explanation for the inclusion of the “items and
    services” language — to differentiate among contexts — cuts
    against the Secretary’s a priori argument that the mere
    presence of the input clause is itself proof of its materiality.6
    Even assuming § 405.1801 could bear the Secretary’s
    strained interpretation, the reopening regulation cannot. Under
    § 405.1885(a), an intermediary determination can “be
    reopened with respect to findings on matters at issue in such
    determination” if challenged within the three-year window.
    As the Eighth Circuit explained in HealthEast, “[i]t would
    make no sense to say that an intermediary determination . . .
    could be reopened ‘with respect to’ predicate factual
    questions that do not alter the total reimbursement amount.”
    HealthEast Bethesda Lutheran Hosp. & Rehab. Ctr. v.
    Shalala, 
    164 F.3d 415
    , 418 (8th Cir. 1998). It is only when
    alteration of the “matters at issue” could change the total
    reimbursement determination that it “make[s] sense to say
    that a determination could be reopened ‘with respect to’
    them.” 
    Id.
     This interpretation, the court concluded, “is the
    6
    The Secretary’s argument regarding the intervening citation
    to § 405.1803 suffers from the same conceptual shortcomings. That
    provision is entirely procedural. It identifies the steps the
    intermediary must take to issue a determination but offers no
    insight as to what constitutes a reopening. Again, the Secretary has
    proffered nothing to convince us that the mere reference to inputs
    somehow imbues them with independent, material significance.
    12
    only interpretation logically consistent with the regulatory
    language.” Id. 7 We concur.
    Nor do we believe Regions Hospital v. Shalala, 
    522 U.S. 448
     (1998), compels a contrary result. The issue before the
    Court in that case was a narrow one: did Congress intend “to
    prohibit the Secretary from ensuring an accurate GME base-
    year amount by reauditing a provider’s statement of 1984
    GME costs for past errors, outside the Secretary’s three-year
    reopening window.” 
    Id. at 457
    . Having found ambiguity in
    the relevant statutory language at Chevron Step One, the
    Court proceeded to determine the reasonableness vel non of
    the Secretary’s reaudit regulation. See 
    id.
     at 457–60.
    “The key point of Regions,” the Secretary contends, “is
    the validity of the reaudit regulation; without that regulatory
    authority the reaudit of the [closed] cost reports would have
    been barred by the reopening regulation.” Reply Br. at 26.
    The inferential argument might be restated thusly: the
    agency’s decision to promulgate a reauditing provision is
    proof that reopening regulation does not, by its own terms,
    allow modification of predicate facts in closed years. We
    7
    The Secretary in HealthEast agreed. With language mirroring
    Kaiser’s own, the Secretary concluded that § 405.1801(a) — the
    very provision at issue here — “did not apply” to closed year loans
    “because the regulation limits reopening only with respect to
    ‘intermediary determinations,’ which are defined as the final
    determinations of the amount a hospital will be reimbursed.”
    HealthEast, 
    164 F.3d at 417
    . “Since the amounts of the
    reimbursements for the [closed year] interest payments were not
    disturbed, the Secretary argued, the ‘intermediary determination’
    was not improperly reopened.” 
    Id.
     The PRRB likewise agreed in
    Edgemont Hospital v. Mutual of Omaha Insurance Co., PRRB Dec.
    No. 95-D34 (Apr. 6, 1995), a decision the Secretary did not reverse
    sua sponte.
    13
    disagree. At most, Regions and its analogue in this Court,
    Administrators of Tulane Educational Fund v. Shalala, 
    987 F.2d 790
     (D.C. Cir. 1993), stand only for the proposition that
    the Secretary acted reasonably in promulgating a reauditing
    regulation in light of statutory silence. We fail to see how the
    Secretary’s decision to announce its policy through
    rulemaking — a potentially pragmatic decision on the
    Secretary’s part8 — would necessarily foreclose the agency
    from interpreting the reopening regulation to the same effect.
    The Secretary is not unfamiliar with this argument,
    having made it as recently as 2009. Citing Regions, the
    Secretary indicated that “even if the intermediary had
    reaudited and revised the IME FTE determination made in the
    1996 base year cost report — and it did not — the Supreme
    Court has already held that such reauditing and revision is
    reasonable.” Hillcrest Riverside, Inc. v. Sebelius, No. 09-cv-
    00018, Memorandum of Points and Authorities in Support of
    Defendant’s Cross-Motion for Summary Judgment and
    Opposition to Plaintiff’s Motion for Summary Judgment at 19
    n.9 (D.D.C. Oct. 2, 2009). Seeing no reason to depart from the
    Secretary’s recent wisdom, we hold that the reopening
    regulation allows for modification of predicate facts in closed
    years provided the change will only impact the total
    reimbursement determination in open years.
    Alternatively, we agree with the District Court that the
    Secretary has acted arbitrarily in treating similarly situated
    8
    A case-by-case approach would have been unwieldy and
    inefficient where the Secretary had “reason to believe some
    ‘questionable’ GME costs had been ‘erroneously reimbursed’ to
    providers for their 1984 fiscal year,” Regions, 
    522 U.S. at 454
    , and
    was obligated to communicate that shortcoming — as well as all
    new changes in the methodology for Medicare payments — to
    private fiscal intermediaries.
    14
    parties differently. Kaiser, 828 F. Supp. 2d at 203; see also
    Eagle Broad. Grp., Ltd. v. FCC, 
    563 F.3d 543
    , 551 (D.C. Cir.
    2009) (“[A]n agency may not treat like cases differently.”
    (internal quotation marks omitted)); Kreis v. Sec’y of the Air
    Force, 
    406 F.3d 684
    , 687 (D.C. Cir. 2005) (“[A]n agency
    must treat similar cases in a similar manner unless it can
    provide a legitimate reason for failing to do so.” (internal
    quotation marks omitted)). HHS routinely championed a
    permissive interpretation of the reopening regulation when
    correction of the predicate facts would have resulted in a
    windfall for the agency, see, e.g., HealthEast, 
    164 F.3d at 416
    , but adopted a contrary view here, where the benefits
    would inure to the provider. At bottom, the Secretary has
    given us no reason to think that this inherently suspicious
    record was the product of reasoned, good faith
    decisionmaking. She has distinguished the cases on their
    facts, but these are distinctions without difference. Whether
    the reimbursement scheme in HealthEast is distinct from the
    one-off “data capture” here, Appellant Br. at 30, for example,
    is an entirely moot point; that fact played an inessential role in
    how the Secretary interpreted the reopening regulation.
    B
    The Secretary next argues that “the Medicare Act would
    not allow the intermediary to change the 1996 GME resident
    count . . . without . . . changing the corresponding
    reimbursement amount,” Appellant Br. at 26, which all parties
    concede would constitute a reopening of an “Intermediary
    determination.”
    The District Court rejected this claim out of hand, noting
    that the Secretary offered “no legal support for her claim that
    the caps cannot be increased without modifying the total
    reimbursement for closed years, particularly where Plaintiffs
    15
    have disclaimed such sums.” Kaiser, 828 F. Supp. 2d at 201.
    On appeal, the Secretary attempts to fill the legal void with
    three generic provisions of the Medicare statute that allegedly
    “entitle[] the provider to the reimbursement due under the
    GME . . . formulas.” Appellant Br. at 26.9
    We are unmoved. As a threshold matter, the Secretary
    has failed spectacularly to square this bold claim with — or
    otherwise justify the departure from — HealthEast, Regions,
    and (among others) Tulane. See, e.g., Motor Vehicle Mfrs.
    Ass’n v. State Farm Mut. Auto Ins. Co., 
    463 U.S. 29
    , 42
    (1983); E. Ky. Power Co-op, Inc. v. FERC, 
    489 F.3d 1299
    ,
    1306 (D.C. Cir. 2007) (explaining that an agency “must
    provide reasoned analysis indicating that prior policies and
    standards are being deliberately changed, not casually
    ignored” (internal quotation marks omitted)). Those cases
    assumed alterations to predicate facts would not trigger a
    mandatory reauditing of closed year reimbursements, see,
    e.g., Regions, 
    522 U.S. at 462
    , and the Secretary agreed.
    III
    For the foregoing reasons, the decision of the lower court is
    Affirmed.
    9
    They include 42 U.S.C. §§ 1395ww(h)(1) (“[T]he Secretary
    shall provide for payments for [GME] costs in accordance with [42
    U.S.C. § 1395ww(h)(3)]”), 1395ww(d)(5)(B) (“The Secretary shall
    provide for an additional payment amount for . . . indirect costs of
    medical education.”), and 1395g(a) (“The Secretary shall
    periodically determine the amount which should be paid under this
    part to each provider of services . . . with necessary adjustments on
    account of previously made overpayments or underpayments.”).