Allina Health Services v. Thomas Price , 863 F.3d 937 ( 2017 )


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  •  United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued May 11, 2017                    Decided July 25, 2017
    No. 16-5255
    ALLINA HEALTH SERVICES, DOING BUSINESS AS UNITED
    HOSPITAL, DOING BUSINESS AS UNITY HOSPITAL, DOING
    BUSINESS AS ABBOTT NORTHWESTERN HOSPITAL, ET AL.,
    APPELLANTS
    v.
    THOMAS E. PRICE, SECRETARY, UNITED STATES DEPARTMENT
    OF HEALTH AND HUMAN SERVICES,
    APPELLEE
    Appeal from the United States District Court
    for the District of Columbia
    (No. 1:14-cv-01415)
    Stephanie A. Webster argued the cause for appellants.
    With her on the briefs were Pratik A. Shah, Christopher L.
    Keough, James H. Richards, and Hyland Hunt.
    Stephanie R. Marcus, Attorney, U.S. Department of
    Justice, argued the cause for appellee. With her on the brief
    was Mark B. Stern, Attorney.
    Before: HENDERSON, KAVANAUGH, and MILLETT, Circuit
    Judges.
    2
    Opinion for the Court filed by Circuit Judge KAVANAUGH.
    KAVANAUGH, Circuit Judge: Several hospitals have
    challenged the formula used by the Department of Health and
    Human Services for calculating certain Medicare
    reimbursement adjustments for fiscal year 2012. As relevant
    here, the hospitals argued before the District Court that HHS
    violated the Medicare Act by changing the reimbursement
    adjustment formula without providing the public with notice
    and opportunity for comment.
    The District Court ruled that HHS did not violate the
    Medicare Act’s procedural requirements. The District Court
    reasoned that (i) the Medicare Act incorporates the
    Administrative Procedure Act’s exception to notice-and-
    comment rulemaking for interpretive rules and (ii) HHS’s
    issuance of the reimbursement adjustment formula here
    constituted an interpretive rule. The District Court granted
    summary judgment to HHS.
    We disagree with the District Court. We conclude that
    HHS violated the Medicare Act when it changed its
    reimbursement adjustment formula without providing notice
    and opportunity for comment. We reverse the judgment of the
    District Court and remand for proceedings consistent with this
    opinion.
    I
    A
    Through the Medicare program, the Federal Government
    provides health insurance to Americans who are 65 or older, as
    well as to disabled Americans. See generally Social Security
    Amendments of 1965, Pub. L. No. 89-97, sec. 102, 79 Stat.
    3
    286, 291-332 (codified as amended at 42 U.S.C. § 1395 et
    seq.). The Department of Health and Human Services
    administers and oversees Medicare. Patients can obtain
    insurance under different Medicare “parts.” Two of those parts
    are relevant here. Medicare Part A provides Medicare
    enrollees with government-administered health insurance
    through which the Government makes direct payments to
    hospitals for healthcare services provided. See 42 U.S.C.
    §§ 1395c to 1395i–5. Part C provides enrollees with
    government-subsidized enrollment in private insurance plans.
    See 
    id. §§ 1395w–21
    to 1395w–29.
    HHS contracts with companies known as fiscal
    intermediaries to reimburse healthcare service providers for
    services rendered to Medicare Part A patients. Fiscal
    intermediaries make initial payments to hospitals for a given
    cost year. Those initial payments are based on estimates of the
    hospitals’ actual costs. The initial payments are later adjusted
    based on providers’ actual cost reports.
    A provider who disagrees with a fiscal intermediary’s
    reimbursement or adjustment decision may appeal that
    decision to the Provider Reimbursement Review Board within
    HHS. See 42 U.S.C. § 1395oo. The Board may affirm,
    modify, or reverse the fiscal intermediary’s decision. 
    Id. § 1395oo(d).
    But importantly, the Board does not have the
    authority to declare statutes or regulations invalid. See
    Bethesda Hospital Association v. Bowen, 
    485 U.S. 399
    , 406
    (1988); 42 C.F.R. § 405.1842(f)(2)(ii).
    As relevant here, the Medicare Act authorizes
    reimbursement adjustments in order to increase payments to
    hospitals that treat a disproportionately high number of low-
    income patients. See 42 U.S.C. § 1395ww(d)(5)(F)(i)(I). That
    adjustment is known as the “disproportionate share hospital
    4
    adjustment.” The adjustment is calculated for each hospital by
    adding two fractions that together approximate the proportion
    of low-income patients treated at that hospital over a certain
    time period. See 
    id. § 1395ww(d)(5)(F)(vi).
    HHS calculates
    and publishes one of those fractions – the Medicare fraction –
    for each hospital in the Nation every year. HHS requires the
    fiscal intermediaries to use HHS’s published Medicare
    fractions in calculating each hospital’s final reimbursement
    adjustment. See 42 C.F.R. § 412.106(b)(2), (5).
    Among other things, the Medicare fraction incorporates
    the number of each hospital’s patient days for patients “entitled
    to benefits under part A” of Medicare.               42 U.S.C.
    § 1395ww(d)(5)(F)(vi)(I). The meaning of that phrase has
    been the subject of much debate (and litigation). The dispute
    is over whether the phrase “entitled to benefits under Part A”
    should be read to refer not only to Part A enrollees, but also to
    patients enrolled in a Part C plan.
    For reasons that are beyond the scope of this opinion, HHS
    now believes that the phrase “entitled to benefits under Part A”
    should also include patients enrolled in a Part C plan. HHS
    therefore contends that Part C patient days should be included
    in the Medicare fractions. Many hospitals disagree. They
    argue that Part C enrollees are not “entitled to benefits under
    Part A” and that Part C days therefore should not be included
    in Medicare fractions.
    That difference in interpretation makes a huge difference
    in the real world. Part C enrollees tend to be wealthier than
    Part A enrollees. Including Part C days in Medicare fractions
    therefore tends to lead to lower reimbursement rates.
    Ultimately, hundreds of millions of dollars are at stake for the
    Government and the hospitals. See Northeast Hospital Corp.
    v. Sebelius, 
    657 F.3d 1
    , 5 (D.C. Cir. 2011).
    5
    Before 2004, HHS had not treated Part C enrollees as
    “entitled to benefits under Part A.” See 
    id. at 15.
    In 2004,
    however, HHS promulgated a rule announcing that Part C
    enrollees are “entitled to benefits under Part A” and that HHS
    would therefore include Part C days in Medicare fractions. See
    Medicare Program; Changes to the Hospital Inpatient
    Prospective Payment Systems and Fiscal Year 2005 Rates, 69
    Fed. Reg. 48,916, 49,099 (Aug. 11, 2004). That 2004 rule
    would have applied HHS’s changed interpretation
    prospectively to all Medicare fraction calculations from fiscal
    year 2005 onward. However, this Court vacated the 2004 rule
    on the grounds that it was not a logical outgrowth of the
    proposed rule and had therefore been improperly issued
    without notice and opportunity for comment. See Allina Health
    Services v. Sebelius, 
    746 F.3d 1102
    , 1107-09 (D.C. Cir. 2014).
    As a result, HHS can no longer rely on the 2004 interpretation.
    In 2013, HHS promulgated a new rule again announcing
    that HHS would treat Part C enrollees as “entitled to benefits
    under Part A” and that HHS would therefore include Part C
    days in Medicare fractions. See 78 Fed. Reg. 50,496, 50,614
    (Aug. 19, 2013). The 2013 rule is prospective only: It applies
    to Medicare fractions calculated for fiscal year 2014 and
    beyond. 
    Id. at 50,619.
    It does not address the definition of
    “entitled to benefits under Part A” for any fiscal years before
    2014. In sum, HHS has no promulgated rule governing the
    interpretation of “entitled to benefits under Part A” for the
    fiscal years before 2014.
    B
    In June 2014, HHS published the Medicare fractions to be
    used in calculating disproportionate share hospital adjustments
    for fiscal year 2012. At the top of the spreadsheet containing
    6
    those fractions, HHS noted that it had included Part C days in
    the Medicare fractions. The spreadsheet contained the 2012
    Medicare fractions for all hospitals nationwide.
    Plaintiffs in this case are hospitals that provide health care
    to low-income Medicare patients and that are therefore entitled
    to disproportionate share hospital adjustments. Those hospitals
    here challenge HHS’s June 2014 decision to include Part C
    days in the 2012 Medicare fractions.
    As required by statute, the hospitals first sought review by
    the Provider Reimbursement Review Board within HHS. But
    the hospitals believed that the Board did not have the authority
    to resolve the hospitals’ challenges because the hospitals’
    challenges related to the validity of several HHS regulations.
    Under HHS’s rules implementing the Medicare statute, the
    Board may not review challenges “either to the
    constitutionality of a provision of a statute, or to the substantive
    or procedural validity of a regulation.”                 42 C.F.R.
    § 405.1842(f)(1). The hospitals therefore sought expedited
    judicial review, which is available under the statute when the
    Board certifies that it does not have authority to resolve a
    provider’s challenge. When the Board so certifies, the provider
    may bring suit in district court without proceeding through the
    full Board review process. See 42 U.S.C. § 1395oo(f)(1).
    Here, the Board agreed with the hospitals that it did not
    have the authority to resolve the hospitals’ challenge. That no-
    authority determination allowed the hospitals to promptly bring
    suit in District Court challenging HHS’s decision to include
    Part C days in the Medicare fractions for fiscal year 2012.
    In the District Court, HHS moved to dismiss the hospitals’
    case on the ground that the case was premature. HHS argued
    that the Board’s no-authority determination was erroneous, and
    7
    that the District Court therefore did not have authority to
    consider the challenges to the Medicare fractions until the
    Board ruled on that claim. The hospitals responded that the
    Board’s no-authority determination was not reviewable by the
    District Court and that, in any event, the Board’s no-authority
    determination was correct. The District Court agreed with
    HHS that the District Court could review the Board’s no-
    authority determination. The District Court agreed with the
    hospitals, however, that the Board’s no-authority
    determination was correct. The District Court therefore denied
    HHS’s motion to dismiss.
    Both sides then moved for summary judgment on the
    merits of the hospitals’ challenges. The hospitals contended
    that HHS violated the Administrative Procedure Act and the
    Medicare Act by including Part C days in the fiscal year 2012
    Medicare fractions without first providing the public with
    notice and opportunity for comment. They also argued that the
    calculations were arbitrary and capricious. HHS responded
    that its decision was procedurally and substantively proper.
    The District Court granted summary judgment to HHS.
    First, the District Court held that the June 2014 decision to
    include Part C days in the 2012 Medicare fractions was an
    “interpretive rule” under the APA. As a result, the District
    Court concluded that HHS’s publication of the fiscal year 2012
    Medicare fractions was statutorily exempt from the APA’s
    notice-and-comment requirements. Second, the District Court
    held that the Medicare Act incorporated the APA’s notice-and-
    comment exception for interpretive rules. The District Court
    therefore held that HHS had not violated the Medicare Act’s
    procedural requirements. Third, the District Court held that
    HHS’s decision to include Part C days in the 2012 Medicare
    fractions was not arbitrary and capricious.
    8
    The hospitals now appeal the District Court’s grant of
    summary judgment to HHS. This Court reviews a district
    court’s grant of summary judgment de novo. See Southeast
    Alabama Medical Center v. Sebelius, 
    572 F.3d 912
    , 916 (D.C.
    Cir. 2009).
    II
    HHS’s Provider Reimbursement Review Board concluded
    that it lacked authority to decide this dispute. The Board
    therefore certified the case for expedited judicial review in the
    District Court. The District Court concluded that it had
    authority to decide the case. We must first consider whether
    the District Court correctly concluded that it had authority to
    decide the case now, or whether the dispute instead should have
    been decided first by HHS’s Provider Reimbursement Review
    Board.
    HHS argues that the dispute should have been decided first
    by the Board. The hospitals raise two alternative points in
    response. They contend that the District Court may not review
    the Board’s no-authority determination. The hospitals also
    argue in the alternative that even if the District Court may
    review the Board’s no-authority determination, the Board here
    was correct to conclude that it did not have authority to hear
    the hospitals’ challenge. We agree with the hospitals on both
    alternative arguments.
    To begin, the hospitals are correct that a district court may
    not review the Board’s no-authority determination at HHS’s
    request. The Medicare Act states that providers – and only
    providers – “shall” have “the right to obtain” expedited judicial
    review “whenever the Board determines . . . that it is without
    authority to decide” a particular question. 42 U.S.C.
    9
    § 1395oo(f)(1) (emphasis added).1 In other words, providers
    are guaranteed expedited judicial review when the Board
    makes a no-authority determination, as the Board did here.
    The statute conditions expedited judicial review in the district
    court on the existence of that no-authority determination, not
    on whether that determination is correct.
    The statutory structure confirms that reading of the text. A
    provider may bring suit in the district court even when the
    Board fails to make a timely determination of its authority to
    decide a case. See 
    id. (“If the
    Board fails to render such
    determination within such period, the provider may bring a
    civil action (within sixty days of the end of such period) with
    1
    As relevant here, the statutory provision for expedited judicial
    review reads: “Providers shall also have the right to obtain judicial
    review of any action of the fiscal intermediary which involves a
    question of law or regulations relevant to the matters in controversy
    whenever the Board determines (on its own motion or at the request
    of a provider of services as described in the following sentence) that
    it is without authority to decide the question, by a civil action
    commenced within sixty days of the date on which notification of
    such determination is received. If a provider of services may obtain
    a hearing under subsection (a) of this section and has filed a request
    for such a hearing, such provider may file a request for a
    determination by the Board of its authority to decide the question of
    law or regulations relevant to the matters in controversy
    (accompanied by such documents and materials as the Board shall
    require for purposes of rendering such determination). The Board
    shall render such determination in writing within thirty days after the
    Board receives the request and such accompanying documents and
    materials, and the determination shall be considered a final decision
    and not subject to review by the Secretary. If the Board fails to
    render such determination within such period, the provider may bring
    a civil action (within sixty days of the end of such period) with
    respect to the matter in controversy contained in such request for a
    hearing.” 42 U.S.C. § 1395oo(f)(1).
    10
    respect to the matter in controversy contained in such request
    for a hearing.”). As the hospitals rightly point out, it would be
    “nonsensical if judicial review could be defeated by
    disagreement with the Board’s no-authority decision, even
    though the Board’s failure to make such a decision
    undisputedly confers federal court jurisdiction.” Allina Reply
    Br. 5.
    Put simply, Congress has allowed providers to seek
    immediate judicial review when the Board concludes that an
    extensive and time-consuming administrative process before
    the Board would likely be pointless. Requiring parties in
    district court to fully brief and re-litigate the Board’s
    assessment of its own lack of authority – a question that may
    often be inextricably linked to the merits of a provider’s
    challenge – runs entirely counter to that statutory scheme.2
    In any event, even if we were wrong about that point, the
    Board here was correct in deciding that it did not have authority
    to resolve the hospitals’ challenge. Under HHS regulations
    implementing the statute’s expedited judicial review
    procedure, the Board “must grant” expedited judicial review if
    the legal question raised “is a challenge either to the
    constitutionality of a provision of a statute, or to the substantive
    or procedural validity of a regulation.”                 42 C.F.R.
    § 405.1842(f)(1). The hospitals here pressed two arguments
    before the Board. Both arguments challenged the “substantive
    or procedural validity” of different regulations.                 
    Id. § 405.1842(f)(1)(ii).
    First, the hospitals argued that HHS erred
    when it chose to apply the formula from the vacated 2004 rule
    2
    We recognize that our decision here breaks with other courts
    of appeals that have concluded that the Board’s no-authority
    determinations are reviewable. See, e.g., Providence Yakima
    Medical Center v. Sebelius, 
    611 F.3d 1181
    , 1187 n.7 (9th Cir. 2010).
    11
    in calculating the 2012 fractions. The hospitals’ first argument
    therefore raised the question of the 2004 rule’s continuing legal
    validity. Second, the hospitals argued that HHS violated
    various procedural requirements by promulgating a new
    regulation without notice-and-comment rulemaking. That
    argument turned on whether the decision to include Part C days
    in the 2012 Medicare fractions constituted a new regulation,
    and if it did, whether that new regulation was procedurally
    valid. Both of the hospitals’ arguments raise legal questions
    about the “substantive or procedural validity of a regulation.”
    
    Id. The Board’s
    no-authority determination was correct. The
    District Court correctly concluded that it had authority to
    decide the case now.
    III
    A
    We turn therefore to the hospitals’ claim that HHS violated
    the Medicare Act by failing to provide for notice and comment
    before including Part C days in the 2012 Medicare fractions.
    We agree with the hospitals that HHS unlawfully failed to
    provide for notice and comment.
    The Medicare Act describes in fairly straightforward
    language when notice and comment is necessary. Paragraph
    (2) of Section 1395hh(a) provides:
    No rule, requirement, or other statement of policy (other
    than a national coverage determination) that establishes or
    changes a substantive legal standard governing the scope
    of benefits, the payment for services, or the eligibility of
    individuals, entities, or organizations to furnish or receive
    services or benefits under this subchapter shall take effect
    12
    unless it is promulgated by the Secretary by regulation
    under paragraph (1).
    42 U.S.C. § 1395hh(a)(2). Paragraph (1), in turn, requires the
    HHS Secretary to “prescribe such regulations as may be
    necessary to carry out the administration of the insurance
    programs” under the Medicare Act. 
    Id. § 1395hh(a)(1).
    With
    a few exceptions not relevant here, “the Secretary shall provide
    for notice of the proposed regulation” to allow “for public
    comment thereon.” 
    Id. § 1395hh(b)(1).
    In other words, as relevant here, the Medicare Act requires
    notice-and-comment rulemaking for any (1) “rule,
    requirement, or other statement of policy” that (2) “establishes
    or changes” (3) a “substantive legal standard” that (4) governs
    “payment for services.” 
    Id. § 1395hh(a)(2).
    All four
    requirements are readily met here.
    First, HHS’s inclusion of Part C days in the fiscal year
    2012 Medicare fractions is, at the very least, a “requirement.”
    Fiscal intermediaries are commanded to use HHS’s Medicare
    fractions in calculating adjustment amounts. See 42 C.F.R.
    § 412.106(b)(2), (5). Those fractions treat Part C enrollees as
    “entitled to benefits under Part A.” The fiscal intermediaries
    are therefore required to include Part C days in their
    calculations as they determine reimbursement adjustments. In
    short, HHS promulgated a “requirement” when it announced
    that the 2012 Medicare fractions would include Part C days.
    Second, HHS’s inclusion of Part C days in the fiscal year
    2012 Medicare fractions represents a change in HHS’s
    standards. Before 2004, HHS’s standard practice was to
    exclude Part C days from Medicare fractions. See Northeast
    Hospital Corp. v. Sebelius, 
    657 F.3d 1
    , 15 (D.C. Cir. 2011).
    HHS’s 2004 rule attempted to change that standard so that the
    13
    Medicare fractions would include Part C days. 
    Id. at 14.
    But
    that rule was vacated. See Allina Health Services v. Sebelius,
    
    746 F.3d 1102
    , 1111 (D.C. Cir. 2014) (Allina I). Although
    HHS promulgated a new rule in 2013 that includes Part C days
    in Medicare fractions, that rule applies only prospectively to
    reimbursement adjustments for fiscal years 2014 and beyond.3
    As a result, the pre-2004 standard of excluding Part C days
    from Medicare fractions remains the baseline practice from
    which this Court must evaluate any decisions for 2012. The
    decision to include Part C days in the 2012 Medicare fractions
    is therefore a change from prior practice.
    Third, HHS’s inclusion of Part C days in the fiscal year
    2012 Medicare fractions establishes a “substantive legal
    standard.” “Substantive law” is law that “creates, defines, and
    regulates the rights, duties, and powers of parties.” BLACK’S
    LAW DICTIONARY (10th ed. 2014). A “substantive legal
    standard” at a minimum includes a standard that “creates,
    defines, and regulates the rights, duties, and powers of parties.”
    That is precisely what HHS’s 2012 Medicare fractions do. The
    fiscal intermediaries must use HHS’s published Medicare
    fractions in determining how much the hospitals will be
    reimbursed. HHS’s fractions therefore define the scope of
    hospitals’ legal rights to payment for treating low-income
    patients.
    Fourth, HHS’s inclusion of Part C days in the fiscal year
    2012 Medicare fractions governs “payment for services.” The
    fractions are used to calculate the payment that providers will
    receive for providing healthcare services to low-income
    patients. The inclusion of Part C days means that the providers
    will now receive lower payments.
    3
    The 2013 rule is the subject of pending litigation in the District
    Court. We express no views on the merits of that case.
    14
    In sum, HHS’s decision to include Part C days in the 2012
    Medicare fractions is covered by the text of
    Section 1395hh(a)(2). The Medicare Act therefore required
    HHS to engage in notice-and-comment rulemaking before
    deciding to include Part C days in the 2012 Medicare fractions.
    Because HHS did not undertake notice-and-comment
    rulemaking, the 2012 Medicare fractions are procedurally
    invalid.
    B
    HHS’s arguments to the contrary are not persuasive.
    First, HHS argues that the fractions are not a “rule,
    requirement, or statement of policy” because the fractions
    apply only to the parties in this particular case for the year
    2012. That argument is factually inaccurate. HHS published
    Medicare fractions for every hospital in the country. All of
    those fractions include Part C days. Indeed, during oral
    argument, HHS forthrightly acknowledged that it would
    “generally” maintain a “consistent interpretation” for all
    hospitals for a given year, meaning that the policy applied to
    the hospitals in this case would apply to all hospitals
    nationwide. Tr. of Oral Arg. at 29:20-21. Moreover, as the
    hospitals point out, the 2012 Medicare fractions will be the
    basis not just for 2012 adjustments, but also for interim 2013
    payments until HHS publishes the 2013 fractions. See 42
    C.F.R. § 413.64(e). In other words, the decision to include Part
    C days in the 2012 Medicare fractions affects more hospitals
    than just the parties in this particular case for this particular
    year.
    Second, HHS argues that the Medicare Act incorporates
    the APA’s exceptions to notice-and-comment requirements.
    15
    According to HHS, even if the decision to include Part C days
    in the fiscal year 2012 Medicare fractions is a rule, it is at most
    an “interpretive rule” for purposes of the APA. As a result, it
    is exempt from the APA’s – and, by extension, the Medicare
    Act’s – notice-and-comment requirements.
    The problem with that argument is that the Medicare Act
    does not incorporate the APA’s interpretive-rule exception to
    the notice-and-comment requirement. (Therefore, we need not
    decide whether HHS’s decision to include Part C days in the
    2012 Medicare fractions was in fact an interpretive rule.)
    Unlike the APA, the text of the Medicare Act does not
    exempt interpretive rules from notice-and-comment
    rulemaking. On the contrary, the text expressly requires
    notice-and-comment rulemaking. The Medicare Act states:
    “No rule, requirement, or other statement of policy . . . shall
    take effect unless it is promulgated” through notice-and-
    comment rulemaking. 42 U.S.C. § 1395hh(a)(2) (emphasis
    added); 
    id. § 1395hh(b)(1).
    The provision does not include an
    exception for interpretive rules. By contrast, the APA requires
    notice and comment only for “proposed rule making” and
    exempts “interpretative rules, general statements of policy,
    [and] rules of agency organization, procedure, or practice”
    from notice-and-comment requirements. 5 U.S.C. § 553(b).
    We must respect Congress’s use of different language and its
    establishment of different notice-and-comment requirements in
    the Medicare Act and the APA. Cf. WILLIAM N. ESKRIDGE JR.,
    INTERPRETING LAW: A PRIMER ON HOW TO READ STATUTES
    AND THE CONSTITUTION 109-10 (2016) (“Where a statute
    repeatedly uses one term or phrase, one expects that a
    materially different phraseology demands a different
    reading.”); ANTONIN SCALIA & BRYAN A. GARNER, READING
    LAW: THE INTERPRETATION OF LEGAL TEXTS 170 (2012) (“[A]
    material variation in terms suggests a variation in meaning.”).
    16
    Moreover, Congress knew how to incorporate the APA’s
    notice-and-comment exceptions into the Medicare Act when it
    wanted to. After all, the Medicare Act expressly incorporates
    other APA notice-and-comment exceptions. Specifically, the
    Medicare Act incorporates the APA’s “good cause” exception.
    See 42 U.S.C. § 1395hh(b)(2) (Notice-and-comment
    rulemaking requirement “shall not apply where— . . .
    subsection (b) of section 553 of title 5 does not apply pursuant
    to subparagraph (B) of such subsection.”). But in the Medicare
    Act, Congress did not incorporate the APA’s interpretive-rule
    exception to notice-and-comment requirements.
    We recognize that we are breaking with several other
    courts of appeals by holding that the Medicare Act does not
    incorporate all of the APA’s exceptions to the notice-and-
    comment requirement. See, e.g., Via Christi Regional Medical
    Center, Inc. v. Leavitt, 
    509 F.3d 1259
    , 1271 n.11 (10th Cir.
    2007); Baptist Health v. Thompson, 
    458 F.3d 768
    , 776 n.9 (8th
    Cir. 2006); Omni Manor Nursing Home v. Thompson, 151 Fed.
    App’x 427, 431 (6th Cir. 2005); Warder v. Shalala, 
    149 F.3d 73
    , 79 n.4 (1st Cir. 1998).4 But we respectfully disagree with
    those opinions. As discussed, we conclude that the Medicare
    Act does not incorporate the APA’s interpretive-rule exception
    to the notice-and-comment requirement.
    4
    As HHS points out, this Court’s prior decision in Monmouth
    Medical Center v. Thompson, 
    257 F.3d 807
    , 814 n.2 (D.C. Cir.
    2001), noted the question of whether the Medicare Act incorporates
    the APA’s interpretive-rule exception. But as HHS recognizes,
    Monmouth did not “expressly decide the question” raised here. HHS
    Br. 44.
    17
    C
    Finally, even if HHS were correct that the Medicare Act
    somehow incorporated the APA’s notice-and-comment
    exception for interpretive rules, HHS would still not prevail
    here. That is because another provision of the Medicare Act,
    Section 1395hh(a)(4), expressly required notice and comment
    in this case. Section 1395hh(a)(4) reads in full:
    If the Secretary publishes a final regulation that includes a
    provision that is not a logical outgrowth of a previously
    published notice of proposed rulemaking or interim final
    rule, such provision shall be treated as a proposed
    regulation and shall not take effect until there is the further
    opportunity for public comment and a publication of the
    provision again as a final regulation.
    42 U.S.C. § 1395hh(a)(4). In other words, if a regulation
    includes a “provision that is not a logical outgrowth of a
    previously published notice of proposed rulemaking,” that
    provision may not become legally operative until it has gone
    through notice-and-comment rulemaking. 
    Id. Section 1395hh(a)(4)
    applies with full force here. This
    Court vacated HHS’s 2004 rule treating Part C enrollees as
    “entitled to benefits under Part A” because the 2004 rule “was
    not a logical outgrowth of the proposed rule.” Allina 
    I, 746 F.3d at 1109
    . HHS therefore had to provide a “further
    opportunity for public comment and a publication of the
    provision again as a final regulation” before HHS could re-
    impose the rule. 42 U.S.C. § 1395hh(a)(4). HHS did not do
    so. And HHS could not circumvent this requirement by
    claiming that it was acting by way of adjudication rather than
    rulemaking. The statutory text says that the vacated rule may
    not “take effect” at all until there has been notice and comment.
    18
    *   * *
    Because we conclude that HHS has failed to provide notice
    and comment as required by the Medicare Act, we need not
    consider whether HHS’s decision was arbitrary and capricious.
    We reverse the judgment of the District Court and remand for
    proceedings consistent with this opinion.
    So ordered.