# United States Court of Appeals

FOR THE DISTRICT OF COLUMBIA CIRCUIT

Argued November 8, 2019 Decided July 31, 2020

No. 19

- 5048

A MERICAN H OSPITAL A SSOCIATION
, ET AL
., A PPELLEES

v.

A LEX M ICHAEL A ZAR
, II, IN HIS OFFICIAL CAPACITY AS THE S ECRETARY OF H EALTH AND H UMAN S ERVICES AND U NITED

S TATES D EPARTMENT OF H EALTH AND H UMAN S ERVICES
, A PPELLANTS

Consolidated with 19

- 5198

Appeals from the United States District Court
for the District of Columbia (No. 1:18

- cv

- 02084)

Alisa B. Klein , A ttorney, U.S. Department of Justice, argued the cause for appellants. With her on the briefs were
Mark B. Stern and Laura E. Myron , Attorneys, Robert P.
Charrow , General Counsel, U.S. Department of Health & Human Services, Janice L. Hoffman , Associate Gen eral Counsel, Susan Maxson Lyons , Deputy Associate General Counsel for Litigation, and Robert W. Balderston , Attorney.2

Thomas R. Barker and Andrew M. London were on the
brief for amicus curiae Federation of American Hospitals in support of defendants

- appellants.

William B. Schultz argued the cause for plaintiffs

appellees. With him on the brief was Margaret M. Dotzel

.

Before: S RINIVASAN
, Chief Judge

, and M ILLETT and
P ILLARD
, Circuit Judges

.

Opinion for the Court filed by Chief Judge S RINIVASAN

.

Opinion dissenting in part filed by Circuit Judge P ILLARD

.

S RINIVASAN
, Chief Judge : When hospitals provide outpatient care to patients insured by Medicare Part B, the federal government reimburses the hospitals for the care . Until recently, the government reimbursed all hospitals at a uniform rate for providing covered drugs. In 2018, though, the Department of Health and Human Services reduced the reimbursement rate for covered drugs by 28.5% for certain hospitals known as “340B hospitals” by virtue of their participation in the federal 340B Drug Pricing Program for underserved populations. HHS cut the reimbursement rate for 340B hospitals because they can obtain drugs far more cheaply
than other hospitals. As HHS saw it, Medicare should not
reimburse hospitals more than they paid to acquire the drugs.

Several hospitals and hospital associations challenge
HHS’s decision, claiming that it rests on an impermissible

construc tion of the governing statute. The district court agreed with the plaintiffs that HHS had exceeded its statutory authority by reducing drug reimbursement rates for 340B hospitals. We disagree. We hold that HHS’s decision to lower3

drug reimbursement rate s for 340B hospitals rests on a reasonable interpretation of the Medicare statute.

I

.

A

.

T he Medicare program provides health insurance to the elderly and disabled. Medicare Part A provides coverage for inpatient care, i.e., care provided while a pati ent is admitted to a hospital or skilled nursing facility. Medicare Part B covers
various other services including outpatient ( or same

- day ) hospital care. Part B thus pays for certain drugs, such as immunosuppressants or chemotherapy drugs , administered in a hospital setting on an outpatient basis . Part B beneficiaries generally pay 20% of their bill out of pocket as coinsurance.

The Department of Health and Human Services (HHS) annually establishes Part B reimbursement rates through
notice

- and

- comment rulemaking. In setting the rates, HHS
uses the “ Outpatient Prospective Payment System ,” or OPPS.
See 42 U.S.C. § 1395 l (t). See generally Am. Hosp. Ass’n v. Azar , No. 19

- 5352, slip op. at 3

– 6 (D.C. Cir. July 17, 2020).
The OPPS requires HHS to fix the amounts it will pay providers for certain services before the year begins ( rather
than after the care has been provided ) . Congress moved to that prospective system to enhance HHS’s ability to control Part B

costs. See Medica re Program ; Prospective Payment System for Hospital Outpatient Services, 65 Fed. Reg. 18,434

, 18,436

– 37 (Apr. 7, 2000); Paladin Cmty. Mental Health Ctr. v. Sebelius

, 684 F.3d 527, 528

– 29 (5th Cir. 2012).

For most types of covered care, the Medicare stat ute instructs HHS to set annual OPPS reimbursement rates through a complex formula that gives the agency significant discretion.4

See 42 U.S.C. § 1395 l (t)(2). For certain kinds of services, however, the OPPS limits that discretion and sets out a specific methodology for calculating payment rates. That is the case for certain drugs covered by Part B, known as “specified covered outpatient drugs” or SCODs.

The statute requires HHS to calculate the reimbursement
rate for SCODs in one of two ways. First, under 42 U.S.C. § 1395 l (t)(14)(A)(iii)(I), which we will refer to as subclause (I), HHS may use “the average acquisition cost for the drug

. . . as determined by the Secretary taking into account

. . . hospital acquisition cost survey data.” Second, under 42 U.S.C. § 1395 l (t)(14)(A)(iii)(II), which we call subclause (II), “if hospital acquisition cost data are not available,” HHS must use “the average price for the drug” as est ablished by a separate

,
cross

- referenced statute. In the event HHS uses average price
under subclause (II), that price metric may be “adjusted by [HHS] as necessary for purposes of this paragraph.” Id.

Since 2006, when those two statutory pricing alte rnatives
took effect, HHS has not had the “hospital acquisition cost survey data” contemplated by subclause (I). As a result, HHS
has had to use the average price metric. See Medicare and Medicaid Programs: Hospital Outpatient Prospective Payment
and Amb ulatory Surgical Center Payment Systems and Quality Reporting Programs, 77 Fed. Reg. 68,210, 68,385

– 86 (Nov. 15, 2012). The parties here agree that, b y virtue of a statutory

cross

- reference, a drug’s default “average price” equals 106%
of its “average sal es price,” or ASP. See 42 U.S.C. § 1395 l (t)(14)(A)(iii)(II) ( citing 42 U.S.C

. § 1395w

- 3a(c) ). HHS calculates ASP every quarter using sales data confidentially provided by drug manufacturers.

HHS ’s average price “methodology

. . . has always yielded a finalized payment rate [for SCODs] in the range of5

ASP+4 percent to ASP+6 percent,” or 104% to 1 06% of ASP. 77 Fed. Reg. at 68,386. As a result , all hospitals have been paid
the same rate

— 104% to 106% of ASP

— for SCODs. Medicare Program: Hospital Outpatient Prospective Payment and Ambulatory Surgical Center Payment Systems and Quality Reporting Pro grams, 82 Fed. Reg. 52,356, 52,494

– 95 (Nov. 13, 2017). From 2013 to 2017, that rate was 106% of ASP, unadjusted from the statutory default average price.

B

.

That changed in late 2017, when HHS announced SCOD payment rates for the upcoming 2018 OPPS year . Invoking its subclause (II) authority to “adjust” the average price metric,
HHS for the first time established two separate rates : one rate for hospitals participating in a drug discount program known as the “340B program

, ” and another rate for all oth er hospitals.
The rate for non

- 340B hospitals remained at ASP+6%, or 106% of ASP. The rate for 340B hospitals was “adjusted”
down to ASP minus 22.5%, or 77.5% of ASP.

To understand HHS’s reasons for reducing SCOD reimbursement rates for 340B hospital s , it is helpful to review the background of the 340B program

. The program takes its
name from the section of the Public Health Service Act that
authorizes it. See Pub. L. No. 102

- 585

, § 602

, 106 Stat. 4943

, 4967

– 71 ( 1992). The program allows covered entities ( including eligible hospitals ) to purchase drugs from manufacturers at heavily discounted rates. See 42 U.S.C. § 256b(a)(4). The covered entities generally care for underserved populations, and the discounted rates enable the providers t o “stretch scarce Federal resources as far as possible.” H.R. Rep. No. 102

- 3 84 (II)

, at 12 (1992).6

The program requires manufacturers, as a condition of having their drugs covered by Medicaid, to sell each covered drug to 340B entities at a “ceiling pr ice” (set by statutory formula). 42 U.S.C. § 256b(a). The program covers at least 3,500 drugs, 82 Fed. Reg. at 52,494, and the government estimates that 340B sales make up approximately 2.8 % of the total U.S. drug market. Health Resources and Services
A dministration, Justification of Estimates for Appropriations
Committees Fiscal Year 2018 , at 244, https://www.hrsa.gov/ sites/default/files/hrsa/about/budget/budget

- justification

2018.pdf

.

Over the past several years, observers have raised concerns about the intersection of the 340B program with Medicare Part B. Government reports found that 340B hospitals typically pay
between 20% and 50% below ASP for covered drugs

. When hospitals provid e 340B drugs that qualify as SCODs to patients

, the hospitals then seek reimbursement from Medicare Part B. Until 2018, the reimbursement rate was 106% of ASP. There was thus a large gap between the amount a 340B hospital would spend to acquire a SCOD an d the higher amount Medicare would reimburse that hospital. The gap ranged from 25% to 55% of the cost of the drug. See

, e.g. , U.S. Government Accountability Off

. , GAO

- 15

- 442

, Medicare Part B Drugs:
Action Needed to Reduce Financial Incentives to Prescri be 340B Drugs at Participating Hospitals (June 2015), https://www.gao.gov/assets/680/670676.pdf

.

When it came time to set 2018 OPPS rates, HHS decided
to address the 340B

- Part B payment gap . HHS believed that the gap “allow[ed] [340B] providers to gene rate significant profits when they administer[ed] Part B drugs.” 82 Fed. Reg. at 52,494. Seeking to shrink those revenues , HHS imposed a 28.5% cut, from 106% of ASP to 77.5% of ASP, to the rates at which it would reimburse 340B hospitals for SCODs. See id.7

at 52,496. The new rate was based on a “conservative” estimate, presented by the Medicare Payment Advisory
Committee , that 22.5% below ASP equaled the “average minimum discount that a 340B participating hospital receive[d]” when purchasing SCODs. Id. HHS estimated that
its 28.5% cut to SCOD reimbursement rates for Part B hospitals would save Medicare $1.6 billion in 2018. Id. at 52,509. As
called for by the OPPS statute, HHS did not pocket the savings,
but instead redistributed them to all hospitals in a budget

neutral manner by raising other Part B reimbursement rates. Id. at 52,623; see 42 U.S.C. § 1395 l (t)(14)(H).

By addressing the 340B

- Part B p ayment gap , HHS hoped to mitigate “unnecessary utilization and potential overutilization of [Part B] drugs.” Medicare Program: Hospital Outpatient Prospective Payment and Ambulatory Surgical Center Payment Systems and Quality Reporting Programs, 82
Fed. R eg. 33

, 558, 33,633 (July 20, 2017)

. HHS cited a GAO study which found that 340B hospitals prescribed more drugs
than other hospitals , a disparity unexplained by salient distinctions between the hospitals or their patient populations

. Id. at 52,494. HHS also sought to reduce the disproportionate coinsurance payments borne by Medicare Part B beneficiaries (mostly elderly patients) for 340B SCODs: because the amount of a patient’s coinsurance payment is a fixed percentage of the medical bill as measured by the OPPS payment level, and because the latter amount for SCODs exceeded 340B hospitals’ actual costs to obtain the drugs, patients’ out

- of

- pocket coinsurance payments for SCODs became inflated, sometimes even exceeding a hospital’s costs to acquire the d rugs. See id.

Ultimately, HHS found it “ inappropriate for Medicare to subsidize other activities” by 340B hospitals

— as laudable as
those activities may be

— “through Medicare payments for [Part8

B] drugs.” Id. at 52,495. I n order to “better and more

appr opriately reflect the resources and acquisition costs that [340B] hospitals incur,” HHS acted to close the Part B

- 340B

gap. Id. (formatting modified). HHS relied on its authority to “adjust” the average price metric under subclause (II) of the

statute:

We believe our authority under section [1395 l ](t)(14)(A)(iii)(II) of the Act to “ calculate and adjust ” drug payments “ as necessary for purposes of this paragraph ” gives the Secretary broad discretion to adjust payments for drugs, which we believe includes an ability to adjust Medicare payment rates according to whether or not certain drugs are acquired at a significant
discount.

Id. at 52,499.

C

.

The plaint iffs here are three hospitals and three hospital
association s, to whom we will refer collectively as the Hospitals

. On November 13, 2017, the day HHS published the rule reducing 340B reimbursement rates for SCODs, the Hospitals brought a challenge to HHS’ s action

. See Am. Hosp. Ass’n v. Hargan , 289 F. Supp. 3d 45, 50 (D.D.C. 2017). The
district court dismissed the suit on the ground that the H ospitals had yet to present a concrete claim for payment to HHS, as required by statute. See id. at 47. We affi rmed. Am. Hosp. Ass’n v. Azar , 895 F.3d 822, 828 (D.C. Cir. 2018).

The H ospitals quickly submitted payment claims as required. HHS rejected them, claiming that the Medicare statute precludes administrative review of adjustments to OPPS9

payment rat es, including SCOD reimbursement rates. The Hospitals then filed this action. Before the district court ruled, HHS promulgated OPPS rates for fiscal year 2019, which
retained the 28.5% SCOD reimbursement cut for 340B hospitals that the Hospitals had init ially challenged. 53 Fed. Reg. 83,818 (Nov. 21, 2018). After submitting additional payment claims, the Hospitals filed a supplemental complaint challenging the 2019 Rule as well. See Suppl. Compl. ¶¶ 73

– 75 (Dkt. 39).

This time, the district court reached the merits. After concluding that the Medicare statute did not preclude its review
of the reductions in SCOD reimbursement, the court held that the rate cut exceeded HHS’s statutory authority to “adjust”
SCOD rates. Am. Hosp. Ass’n v. Azar , 348 F. Supp. 3d 62, 79 (D.D.C. 2018). The court remanded to the agency to come up
with a remedy in the first instance. The court then entered final judgment, paving the way for this appeal.

II

.

We must first address a threshol d challenge to our jurisdiction. The government asserts that paragraph
1395 l (t)(12) of the OPPS statute, 42 U.S.C. § 1395 l (t)(12), precludes judicial review of HHS’s adjustments to SCOD rates.
The district court disagree d, and so do we

. Unable to find “clear and convincing evidence that Congress intended” that result, as would be required to overcome the “strong presumption that Congress intends judicial review of
administrative action

, ” we conclude that the challenged rate adjustment is subject to judi cial review. Amgen, Inc. v. Smith

, 357 F.3d 103, 111 (D.C. Cir. 2004) ( quoting Bowen v. Mich. Acad. of Family Physicians , 4 76 U.S. 667, 67 0 (1986) )

.10

Paragraph 1395 l (t)(12) states that “[t]here shall be no administrative or judicial review” of certain en umerated
actions undertaken by HHS in administering the OPPS . The question is whether changes to SCOD reimbursement rates are

among the listed, nonreviewable actions. The government says yes, contending that changes to SCOD reimbursement rates fall
withi n two provisions of paragraph (12 ): subparagraph s (12)(A) and (12)(C).

The first provision, subparagraph (12)(A)

, bars review of
the “ development of the classification system under paragraph (2), including the establishment of groups and relative payment weights for covered OPD [outpatient department] services, of wage adjustment factors, other adjustments, and methods described in paragraph (2)(F).” 42 U.S.C. § 1395 l (t)(12)(A) ; see also Am. Hosp. Ass’n , No. 19

- 5352, slip op. at 11

. The second provision, s ubparagraph (12)(C)

, bars review of “periodic adjustments made under paragraph ([9]).” Id. § 1395 l (t)(12)(C). ( While the provision in fact refers to “paragraph ( 6 )

, ” a ll agree that the reference contains a
scrivener’s error and that Co ngress in fact intended to refer to paragraph (9) .) The reach of subparagraphs (12)(A) and (12)(C) turns on the scope of the provisions they cross

reference: paragraphs (2) and (9), respectively.

Begin with paragraph (2), which sets out the general

met hodology HHS must use to set standard OPPS payments. Under paragraph (2) , HHS “develop[s] a classification system.” Id. § 1395 l (t)(2)(A). In doing so, HHS groups certain medical services together that are “comparable clinically and with respect to the u se of resources.” Id. § 1395 l (t)(2)(B). The resulting groups are known as ambulatory payment classifications, or APCs. Next, HHS establishes “relative payment weights” for the grouped services in an APC based on hospital costs. Id. § 1395 l (t)(2)(C). H HS then sets default11

payment amounts for the services in each APC corresponding to the weights.

Paragraph (9) , meanwhile, requires HHS to annually review and adjust the standard OPPS payment rates initially set under paragraph (2). Specifically, HHS must reassess its grouping and weighting decisions, as well as the other separate payment adjustments it makes under paragraph (2) (such as
labor

- cost adjustments), to “take into account changes in medical practice, changes in technology, the addition of new services, new cost data, and other relevant information and
factors.” Id. § 1395 l (t)(9)(A).

HHS determines most annual OPPS payment levels through the exercise of paragraph (2) and (9) authority

. Recall, however, that the Medicare statute does not allow HHS to use
that discretion

- laden authority to establish payment rates for all
Part B services. R eimbursement rat es for specified covered outpatient drugs

— the rates at issue here

— instead must be keyed to one of two statutory formulas set out in paragraph
1395 l (t)(14): average acquisition cost (if hospital cost data are available) under subclause (I), or average pric e under subclause (II) . SCOD payments “shall be equal” to one of those two options. Id. § 1395 l (t)(14) (A)(iii).

Returning to our original question of whether HHS’s adjustment to SCOD reimbursement rates fall within the bars on judicial review set out in subparagraphs ( 12 ) (A) or ( 12 ) (C),
the answer is no as a textual matter. Neither (12)(A) nor (12)(C) addresses

— and thus neither purports to preclude

— any action taken by HHS under paragraph (14) of the statute. And
none of the actions described in subparagraphs (12)(A) or (12)(C) plausibly , let alone clearly, comprises SCOD
reimbursement adjustments

.12

In particular, s ubparagraph (12)(A) precludes rev iew of

“ the development of the [APC] classification system,” “the establishment of groups and relative payment weights,” “wage adjustment factors,” and “other adjustments.” Id. § 1395 (t)(12)(A). As just discussed, SCOD rates are not set using the paragra ph (2) grouping and weighting process, so a change to SCOD rates does not come under the first two of those descriptions

. Such a change is also not a “wage adjustment[].” Nor is it covered by the term “other adjustments,” which we have read to reach only the “adjustments

. . . necessary to ensure equitable payments”
under sub paragraph (2)(E) ( i.e., “equitable adjustments”)

, s ee Amgen , 357 F.3d at 113.

Subparagraph (12)(C), similarly, does not by its plain terms appear to cover SCOD payment reductions. It covers “periodic adjustments made under paragraph [9].” 42 U.S.C. § 1395 l (t) (12)(C). By the terms of paragraph (9), that annual adjustment power extends only to actions initially taken under paragraph (2). A nd a s just discussed, none of those actions textually corresponds to a decision to reduce SCOD rates.

Our analysis of the text draws support from Congress’s history of amendm ents to the OPPS statute. When adding new provisions to subsection 1395 l (t), Congress has tended to say expressly when it wishes to preclude judicial review of
decisions made under an added provision . In 1999, Congress added paragraphs (5), (6), and (7) to subsection (t). In the same legislation

, Congress also added clause (E) to paragraph (12), which provided that certain “determination [ s ] ” made under paragraphs (5) and (6), but not any decisions under paragraph (7), would not be judicially reviewable. See Pub. L. No. 106

- 113, § 201( d), 113 Stat. 1501 (1999 ). In 2015, Congress included a preclusion

- of

- judicial

- review provision directly within the newly added paragraph (21), rather than amending13

paragraph (12). See Pub. L. No. 114

- 74, § 603 , 129 Stat. 5 84, 598 (2015)

. By contrast, when Congress added paragraph (14) in 2003, it did so without any indication of an intention to preclude judicial review of SCOD rate

- setting decisions.

According to the government, though, Congress had no need to expressly preclude judicial review of actions taken under paragraph (14) because those actions are inherently ones under paragraphs (2) and (9) (and thus necessarily fall within the judicial

- revi ew bars in subparagraphs (12)(A) and (12)(C)). The nub of the government’s argument is that paragraph (14) does not in fact set up a “standalone payment regime” outside the general paragraph (2) system. Appellant’s Reply Br. 15. Rather, the government co ntends, paragraph (14) merely “provides instructions to HHS about how to exercise its paragraph 2 and 9 authority when setting and revising payments” for SCODs. Id. On that view , even though HHS must follow paragraph (14)’s specific commands when setting the SCOD reimbursement rate, when HHS does so , it exercises authority located not in (14) but in paragraphs (2) and (9).

Ultimately, it is the government’s burden to support that theory by “clear and convincing evidence ,” Amgen , 357 F.3d at 111, espec ially given the absence of statutory text unambiguously precluding judicial review . Applying that standard, we are insufficiently persuaded of the proposition that HHS’s authority to annually set SCOD rates is located in paragraphs (2) and (9) rather than paragraph (14)

.

First

, Congress on several occasions has specifically noted, directly in the statutory text, that certain OPPS

- related
decisions fall under paragraph (2). When Congress authorized HHS to make “outlier adjustments” and “pass

- through

payme nts

, ” it fleshed out how those actions would work in paragraphs (5) and (6) respectively, but lodged the authority to14

make the adjustments in the newly added subparagraph (2)(E).
See 42 U.S.C. § 1395 l (t)(2)(E). When Congress added paragraphs (13) and (18 ) , which address adjustments for rural and cancer hospitals, respectively, it similarly provided that those adjustments would fall under sub paragraph (2)(E). 42 U.S.C. § 1395 l (t)(13)(B) (“the Secretary shall provide for an appropriate adjustment under paragraph (2)(E)”); id. § 1395 l (t)(18)(B) (“the Secretary shall

. . . provide for an appropriate adjustment under paragraph (2)(E)”)

. But when Congress added the SCOD reimbursement provisions of paragraph (14) in 2003, it included no such language

r eferencing paragraph (2)

.

Second , both the statute’s text and HHS’s longstanding practice strongly suggest that paragraph (2) and (9)’s “adjustment” authorities do not encompass paragraph (14). If setting SCOD rates were an exercise of paragraph (2) auth ority,
HHS would be authorized to use its subparagraph (2)(E) equitable

- adjustment authority to change the rates. But it does not appear HHS may make such adjustments to SCOD rates.

As a matter of statutory text, paragraph (14) provides its
own authoriza tions for HHS to adjust SCOD rates. Subclause (I) of paragraph (14), which sets out the average

- acquisition

cost formula, says that the Secretary “may vary [the calculated reimbursement rate] by hospital group.” 42 U.S.C. § 1395 l (t)(14)(A)(iii)(I). Subclause (II), which requires SCOD reimbursement to reflect a drug’s average price, allows the Secretary to “calculate[] and adjust[] [the average price metric] as necessary for purposes of this paragraph.” Id. § 1395 l (t)(14)(A)(iii)(II). And both the a verage

- acquisition

cost and average

- price formulas are “subject to subparagraph (E),” which authorizes the Secretary to “adjust” SCOD payments to account for “overhead and related expenses, such as pharmacy services and handling costs.” Id.15

§ 1395 l (t)(14) (E). It would be odd for Congress in paragraph (14) to provide HHS with those specific authorities to “adjust”
SCOD rates if HHS nonetheless has the general authority to adjust those rates as it sees fit under paragraph (2) or (9).

HHS’s longstanding pra ctice, and the 2018 and 2019 Rules at issue here, corroborate that understanding . HHS has never purported to use its paragraph (2) or (9) authorities either to set
SCOD rates or to deviate from the default “average price” rate set out in subclause (II). And it did not do so here. Instead, in the 2018 Rule, HHS grounded its action in in the “calculate and adjust” provision of paragraph (14), subclause (II)

. 82 Fed. Reg. at 52, 499

– 500 . The government claims that HHS invoked its paragraph (9) authority in the 2018 Rule’s preamble. But the preamble stated only that the Rule would “describe [that] and various other statutory authorities in the relevant sections
of this final rule.” Id . at 52,362. And in the section of the Rule explaining HHS’s statutory a uthority to make the 340B

- related reduction to SCOD rates, t here is no reference to paragraph (9)

. See id. at 52,496, 52,499

– 502.

Of particular note, HHS made no claim that the rate cut at issue here was an exercise of its sub paragraph (2) (E) equitable

adjustment authority, even though the change might be seen to

serve equitable goals. HHS relied solely on its paragraph (14), subclause (II) adjustment authority, even as it invoked its subparagraph (2)(E) equitable

- adjustment power in connecti on with at least two other rate changes in the 2018 OPPS Rule

. See id. at 52,3 64

– 65 ( explaining that HHS makes an additional payment for radioisotopes used in diagnostic imaging “based on the authority set forth at section [1395 l ](t)(2)(E)”) ; id. at 52,42 1 (“ w e are using our equitable adjustment authority” to change reimbursement for retinal procedure).16

Third , paragraph (14) operates as a standalone payment regime for all practical purposes . The statute contemplates that HHS will set SCOD payment rates i n a vacuum, without taking
into account other OPPS rate

- setting decisions. SCOD rates are not set through relative weighting with rates for other reimbursable care. And if HHS changes the payment weights for other APCs, SCOD prices need not change becaus e SCOD

rates are un affected by the statute’s budget

- neutrality requirement. Recall that SCOD rates must equal either average acquisition cost or average price. Although subparagraph (14)(H) requires that “ [ a ] dditional expenditures resulting from this par agraph” be “taken into account” for overall budget neutrality for the OPPS, that language recognizes that the expenditures “resulting” from the application of paragraph (14) will be calculated first, irrespective of other adjustments made to other OPPS pay ments. 42 U.S.C. § 1395 l (t)(14)( H). Only
then are those set

- in

- stone numbers put into the budget

neutrality calculator.

On this score, HHS again has consistently read the statute the way we do. See, e.g. , 77 Fed. Reg. at 68,262 (“Payments for [SCODs] are included in the budget neutrality adjustments

. . . but the budget neutral weight scaler is not applied to their payment s because they are developed through a separate methodology, outside the relative payment weight based process.”). That understanding of the statute’s structure sits uncomfortably, to say the least, with HHS’s position in this

case that paragraph (14) doe s no more than instruct HHS how to exercise its paragraph (2) and (9) authorities.

The government lastly relies on subparagraph (14)(H)

, reading that provision to indicate that setting of SCOD rates is an exercise of paragraph (9)’s annual

- adjustment authority. Subparagraph (14)(H), enacted along with the rest of paragraph (14) in 2003, requires that SCOD payments be counted for17

budget

- neutrality purposes in years after 2005, but specifies
that the payments “shall not be taken into account” for budget

neutrality purposes in 2004 and 2005. 42 U.S.C. § 1395 l (t)(14)(H) (emphasis added); see also id. § 1395 l (t)(9)(B). According to the government

, the specification that SCOD payments would not be subject to budget neutrality in 2004 and 2005 suggests that budget neutrality otherwise appl ies , which would be the case if SCOD

rate

- setting were an exercise of paragraph (9) authority (given that all paragraph (9) adjustm ents must be budget neutral

, s ee id. § 1395l(t)(9)(B) ).

We disagree with the premise that SCOD rates can factor into OPPS budget neutrality only if the setting of SCOD rates is an exercise of paragraph (9) authority. It is at least possible, if not proba ble, that Congress conceived of the SCOD rate

setting program as entirely distinct from the general paragraph (2) and (9) program, yet still wanted the output of the SCOD program to matter for overall budget neutrality. Recall that Congress required HHS t o move to the prospective OPPS system, constrained by a budget

- neutrality requirement, in
order to control Medicare Part B spending and promote more predictable annual growth

. In view of those goals, Congress, when creating a standalone payment regime for SCODs

, might
still have want ed to achieve budget neutrality for Part B payments as a whole. Thus , Congress’s choice to make that desire explicit for years after 2005 (and to carve out the two prior years) does not necessarily imply that HHS exercises

par agraph (9) authority whenever it adjusts SCOD rates

.

To sum up: subparagraphs (12)(A) and (12)(C) do not, by their terms, clearly cover HHS’s decision to cut SCOD reimbursement to 340B hospitals. While the government argues that SCOD rate

- setting is mer ely a species of general
OPPS rate

- setting under paragraph s (2) and (9), and that18

Congress thus intended SCOD payment decisions to be similarly insulated from review , that account, a t a minimum, is

not clearly correct

. As a result , the government has fail ed to “overcom[e] the strong presumption that Congress did not mean to prohibit” our review. Bowen , 4 76 U.S. at 672.

III

.

Proceeding to the merits, the sole question before us is
whether HHS ha d statutory authority to impose its 28.5% cut

to SCOD reimbursement rates for 340B hospitals

. HHS located its authority in subclause (II) of paragraph (14) of the
OPPS statute

. Under that provision , when HHS sets SCOD payment amounts tethered to average drug prices, HHS has express authority to “adjust []” the amounts “ as necessary for purposes of this paragraph.” 42 U.S.C. § 1395 l (t)(14)(A)(iii)(II). In our view , HHS reasonably interpreted subclause (II) ’s adjustment authority to enable reducing SCOD payments to 340B hospitals

, so as to avoid reimbursing those hospitals at much higher levels than their
actual costs to acquire the drugs.

On that issue of statutory interpretation , HHS is entitled to
Chevron deference, which it has invoked here ( although it did
not do so expressly until a post

- argument letter submitted to the
Court ). See Chevron U.S.A.

, Inc. v. Nat. Res. Def. Council,
Inc. , 467 U.S. 837, 842 (1984). When an agency “interpret[s] a statute it is charged with administering in a manner (and through a process) evincing an exe rcise of its lawmaking authority,” that interpretation is entitled to Chevron treatment, and the agency cannot forfeit Chevron ’s applicability

. SoundExchange, Inc. v. Copyright Royalty Board , 904 F.3d 41,
54

– 55 (D.C. Cir. 2018)

. HHS established SCOD
reim bursement rates for 340B hospitals through notice

- and

comment rulemaking and explained why it “believe[d] that [its]19

proposal [was] within [its] statutory authority to promulgate.” 82 Fed. Reg. at 52,499. HHS’s understanding of its statutory authority thus is entitled to Chevron deference

. See Am. Hosp.
Ass’n , No. 19

- 5352, slip op. at 14; Tenet HealthSystems
HealthCor p. v. Thompson , 254 F.3d 238, 248 (D.C. Cir. 2001) ;

see also Barnhart v. Walton , 535 U.S. 212, 222 (2002)

.

Under Chevron , we first ask whether “Congress has directly spoken to the precise question at issue.” Chevron , 467
U.S. at 842

. Here, the “precise question at issue” is whether HHS’s adjustment authority in subclause (II) encompasses a reduction to SCOD reimbursement rates aimed at bring ing
reimbursements to 340B hospitals into line with their actual costs to acquire the drugs. If the statute does not directly
foreclose HHS’s understanding

, we defer to the agency’s reasonable interpretation. See id. at 844. We concl ude that HHS’s interpretation of subclause (II) is not directly foreclosed
and is reasonable

.

By way of brief review , paragraph (14) , as its title confirms, addresses “[d]rug

. . . payment rates”

— specifically,
the rates at which hospitals are reimbursed for SCODs
furnished to beneficiaries in supplying covered care. 42 U.S.C. § 1395 l (t)(14)

. Under subclause (I) of the paragraph , the “amount of payment ,” as a default matter, “ shall be equa l ” to hospitals’ “ average acquisition cos t for the drug.” Id. § 1395 l (t)(14)(A)(iii)(I)

. But if pertinent “hospital acquisition
cost data are not available,” then payment levels are determined under subclause (II) . U nder that provision, the amount of payment equal s “the average price for the drug”

— which, by statutory cross

- reference, is the drug’s average sales price ( ASP ) charged by manufacturers

— but subject to “adjust[ment]

. . . as necessary for purpose s of this paragraph .”
Id. § 1395 l (t)(14)(A)(iii)( II).20

Much is undisputed about HHS’s application of subclause (II)’s adjustment authority to reduce SCOD payment rates to 340B hospitals. First, HHS properly found that the “hospital acquisition cost data” contemplated by subclause (I) wa s unavailable , such that HHS needed to determine payment rates
in accordance with subclause (II)’s fallback reliance on average drug prices. Second, 340B hospitals obtain SCODs at substantially lower cost than other providers, such that reimbursing those hospitals at the same rate as other providers
would give sizable revenu es to the hospitals . Third, HHS’s 28.5% SCOD rate reduction for 340B hospitals is a fair, or even conservative, measure of the reduction needed to bring payments to those hospitals int o parity with their costs to obtain the drugs. See 82 Fed. Reg. at 52,500. Fourth

, absent the reduction, at least some Medicare beneficiaries served by 340B hospitals (generally underserved populations) would pay out

of

- pocket copayments for the drugs that substantially exceed the normal copay share of provider s’ cost to obtain the drugs

— with beneficiaries’ copayments sometimes exceeding 340B hospitals’ full cost to purchase the drugs. And fifth, the roughly $1.6 billion in savings from reducing SCOD r eimbursement payments to 340B hospitals is not kept by the agency but is redistributed to all providers as additional reimbursement payments for other services. See generally pp. 6

– 8

, supra

.

That is the backdrop against which we consider whether
HHS p ermissibly understood its subclause (II) adjustment authority to encompass its reduction to reimbursement
payments to 340B hospitals for SCODs

. Was HHS obligated to continue reimbursing 340B hospitals for SCODs in amounts substantially exceeding their cos ts to obtain the drugs, with the
result ing effect s that concerned the agency on out

- of

- pocket copayments owed by Medicare beneficiaries? We think the agency was not compelled to continue doing so

.21

The central question is whether HHS permissibly
conceived of the “purposes of this paragraph,” i.e.

, paragraph (14) , in exercising its subclause (II) authority to “adjust[]” payment rates “as necessary for the purposes of this paragraph

, ” 42 U.S.C. § 1395 l (t)(14)(A)(iii)( II). According to

t he agency, a “ manifest purpose of paragraph 14 is to compensate providers for the average acquisition cost” of
SCODs. Appellant’s Br. 30. In accordance with that understanding, HHS explained in the 2018 Rule that “a payment amount of ASP minus 22.5 perce nt for drugs acquired under the 340B Program is better aligned to hospitals’ acquisition costs and thus this adjustment

. . . is necessary for Medicare OPPS payment policy.” 82 Fed. Reg. at 52,501.

Paragraph (14)’s structure supports HHS’s understanding that the provision’s core purposes include reimbursing hospitals for their costs to acquire SCODs. Paragraph (14)’s primary (and default) instruction for determining SCOD payment amounts, set out in subclause (I), is to equate them to “average acquisition cost.” 42 U.S.C. § 1395 l (t)(14)(A)(iii)(I)

. That alone indicates that Congress’s primary goal is to reimburse providers for their acquisition costs. And i f direct acquisition

- cost data of a kind contemplated by subclause (I ) is unavailable, HHS must then, as a fallback matter under subclause (II), equate payment amounts to “average price,” subject to adjustment. 42 U.S.C. § 1395 l (t)(14)(A)(iii)(I I). By prescribing the use of ASP as a backup when the requisite acquisition

- c ost data is unavailable, Congress signaled that average price functions as a stand

- in for costs.

HHS has long understood average price under subclause (II) to serve as a “proxy for average acquisition cost.” 77 Fed. Reg. at 68,386. HHS has used ASP since 2006, stating then and all along that its “intent ” in using ASP was “ to pay for drugs and biologicals based on their hospital acquisition costs.”22

Medicare Program; Changes to the Hospital Outpatient Prospective Payment System and Calendar Year 2006 Payment Rates, 70 Fed. Reg. 68,516, 68,642 (Nov. 10, 2005). For non

340B hospitals, ASP is an accurate approximation of acquisition costs : HHS ’s Inspector Gener al has found that , for

non

- 340B hospitals, ASP comes within roughly 1% of acquisition costs. HHS Office of Inspector General, Memorandum Report: Payment for Drugs Under the Hospital Outpatient Prospective Payment System 1, 9 (Oct. 22, 2010).
But for 340B hospitals, ASP substantially exceeded SCOD acquisition cost s by the time of the 2018 Rule

— hence the need for an adjustment under subclause (II) to bring payments to 340B hospitals into line with their costs.

The OPPS statute exhibits in other ways Congr ess’s
evident purpose of aligning SCOD reimbursement with hospital costs . Paragraph (14) itself expressly authorizes a separate a djustment to SCOD payment rates to account for
“overhead costs” and “related expenses” (“such as pharmacy
services and handling costs”)

. Id. § 1395 l (t)(14 )(E). And more broadly, many other OPPS provisions reflect the goal of aligning payments to hospitals with their costs

. See id. § 1395 l (t)(2)(C) (grouping and weighting under paragraph (2)
must be “based on median

. . . hospital costs”); id. § 1395 l (t)(2)(D) (“wage adjustment factor” must account for
“relative differences in labor and labor

- related costs”); id

. § 1395 l (t)(5) (B) (“outlier adjustments” must “approximate the marginal cost of care”); id. § 1395 l (t)(9) (A) (“ periodic

. . . adjustments” must be based on “new cost data”); id. § 1395 l (t)(13) (A) (authorizing adjustments if “ costs incurred by hospitals located in rural areas

. . . exceed those costs incurred by hospitals located in urban areas”); id. § 1395 l (t)(18) (B) (same for cancer hospitals).23

All of that supports HHS’s understanding that the “purposes” of paragraph 14 for which the agency can “adjust[]”
SCOD payments under subclause (II) include aligning
payment s to hospitals with their drug acquisition costs. Id. § 1395 l (t)(14)(A)(iii)(II) . That is precisely what HHS did when it imposed its 28.5% reduction in payments to 340B hospitals for SCODs.

In arguing that HHS lacked authority under subclause (II)

to un dertake that measure, the Hospitals focus on subclause (I)’s requirement that, if payment amounts are keyed to “average acquisition cost” under that provision

— as opposed to average price under subclause (II)

— then the agency must take “into account the hosp ital acquisition cost survey data under subparagraph (D).” Id. § 1395 l (t)(14)(A)(iii)(I ). And subparagraph (D ) imposes stringent data

- quality requirements

, mandating that the cost surveys “shall have a large sample of hospitals that is sufficient to generate a statistically significant estimate of the average hospital acquisition cost for each [ SCOD].” Id. § 1395 l (t)(14)(D) (iii)

.

Because Congress required HHS to “tak[e] into ac count” robust study data when setting SCOD rates at average acquisition cost under subclause (I), the Hospitals argu e, HHS

cannot use its subclause (II) authority to adjust ASP in order to approximate acquisition cost. As the Hospitals see it, if HHS

want s to set SCOD rates based on the cost to hospitals to acquire the drugs

, the agency must get the data contemplated by subclause ( I). If it were otherwise

, the Hospitals contend

, subclause (I)’s requirement to take into account the data collected under subparagraph (D) would be meaningless : HHS could simply forgo the study required by subclause (I) and
instead use subclause (II) to approximate drug acquisition

costs. Our dissenting colleague, too, stresses the same point.
Dis sent ing Op. 5.24

That argument

, on which the district court relied, see Azar

, 348 F. Supp. 3d at 82

– 83

, is not without force. We, though, are ultimately unpersuaded. For the Hospitals’ argument to carry the day under Chevron , we would need to conclude th at Congress unambiguously barred HHS from seeking to align reimbursements with acquisition costs under subclause (II) , or that HHS’s belief that it could do was unreasonable

. And HHS would be barred from doing so even if, as here, it is undisputed both that payment amounts otherwise would substantially exceed hospitals’ costs and that the proposed adjustment accurately and reliably approximates procurement cost s

.

Given that the survey data contemplated by subcla use (I) aims to assure the reliability of cost

- acquisition data, we do not read the statute to foreclose an adjustment to ASP under subclause (II) that is based on reliable cost measures of the kind undisputedly at issue here. That is particularly so beca use, whereas the Hospitals question whether HHS’s interpretation could enable sidestepping subclause (I)’s data

- reliability requirements altogether , the Hospitals’ own reading raises a similar interpretive dilemma

. Subclause (II) , as explained, expressly empowers HHS to “adjust” payments based on ASP “as necessary for purposes of” paragraph (14). And u nder the Hospitals’ reading, those “purposes” cannot include the goal of approximating hospital acquisition costs. But the Hospitals point to no other “pur pose” that could permissibly support an adjustment. The Hospitals’ argument thus renders subclause (II)’s adjustment authority superfluous.

T he Hospitals submit that “[t]he purpose of paragraph (14) is to establish the rate for separately payable drugs.” Appellees’ Br. 42

– 43. That may be true at a high level of generality

— indeed, the title of paragraph (14) is “Drug APC
payment rates ”

— but it is unhelpful to the Hospitals for our25

p urpose s . After all, HHS’s rate reduction for payments to 340B hospitals does “establish the rate for separately payable drugs.”

T he Hospitals also suggest that subclause (II)’s adjustment authority enables adjustments to account for overhead costs. Appe llees’ Br. 49. But that reading would leave subclause (II)’s adjustment authority duplicative of authority already conferred by subparagraph (14)(E)

. That subparagraph , as noted, authorizes HHS to make adjustment s to account for

“ overhead and related expenses, such as pharmacy services and handling costs.” 42 U.S.C. § 1395 l (t)(14)(E) (i)

. If subclause (II)’s adjustment authority were merely meant to reinforce subparagraph (14) (E)’s authority to account for overhead costs,
then why would subclause (II) not simply say so , in comparable language ? Instead, subclause (II) frames its grant of authority
in notably broader terms addressed to the overall purposes of paragraph (14), not just the specific , “overhead and related expenses” foc us of subparagraph (14) (E)

.

The Hospitals’ reading of subclause (II) ’s adjustment authority as addressed to overhead costs , it bears noting, would necessarily mean that the purpose of granting that authority is to enable bringing ASP closer to drug acquisition costs

— precisely what the Hospitals otherwise say the agency cannot aim to do when exercising its subclause (II) authority. But under the Hospitals’ evident understanding, the agency can try

to get ASP closer to actual costs only to the extent of taking into account overhead costs, without going further to bring
ASP all the way into alignment with acquisition costs

. That
half

- measure understanding of subclause (II)’s adjustment authority is incompatible with its broad terms , which speak generally to the “purposes” of paragraph (14), including, in particular, approximating drug acquisition costs

.26

Our dissenting colleague nonetheless endorses the Hospitals’ suggestion that subclause (II)’s adjustment authority , while framed generally, should be read as focused on
overhead costs. Dissent ing Op. 5

– 8

. Our colleague briefly suggests that there may be no redundancy between subclause (II) and subparagraph (14)(E) under that reading because, she posits, the two provisions both allow for adjustments to account
for overhead costs

, but at different times, with (14)(E) in the
nature of a time

- limited , naturally

- expiring allowance and subparagraph (II) an ensuing, ongoing one. Id. at 5

– 6

. Again, though, if the provisions were designed to cover the same terrain (even if at different times), one would expect them to use similar language in defining the territory , which they conspicuously do not . And at any rate, the statutory text confirms that the provisions are designed to work side

- by

- side contemporaneously, not at different times: Congress rendered
subclause (II)’s provisions expressly “subject to paragraph (E),” such that the agency, when acting under subclause (II), could make adjustments to ASP both under that provision’s own, broadly

- framed adjustment authority and under subparagraph (14)(E)’s more specif ic authority addressed to
overhead costs. 42 U.S.C. § 1395 l (t)(14)( A )

.

Our dissenting colleague ultimately allows that the Hospitals’ overhead

- costs interpretation of subclause (II)’s adjustment authority means that the provision may reiterate

— i.e., make “double sure”

— subparagraph (14)(E)’s express authority to account for overhead costs

. Dissent ing Op. 6. But our colleague still believes that the Hospitals’ reading of the

statute is unambiguously compelled at Chevron step one. Id.

at 1. In her evident view, any superfluity occasioned by that reading is less substantial than the superfluity occasioned by the agency’s reading. Id. at 8

– 9. But even assuming there is a reliable metric for comparing degrees of superfluity across readings in that fashion, that kind of comparison is not the stuff27

of a Chevron step one resolu tion. Rather, when competing readings of a statute would each occasion their own notable superfluity, that manifests the kind of statutory ambiguity that
Chevron permits the agency to weigh and resolve. Se e National Ass’n of Home Builders v. Defenders of Wildlife , 551 U.S. 644, 666 (2007) ; Peter Pan Bus Line s , Inc. v. Fed. Motor Carrier Safety Admin. , 471 F.3d 1350, 1354 (D.C. Cir. 2006) (“[S]ection 13902 contains surplusage under either reading and, as a result, we cannot say that either proffered construction reflects the Congress’s unambiguously expressed intent.”)

.

The Hospitals separately suggested in oral argument that subclause (II) ’s adjustm ent authority could pertain to improving the accuracy of the sales

- price metric specifically for hospitals (as opposed to other providers). ASP reflects
sales prices to all manner of medical providers, including pharmacies, clinics, independent physician practices, and the
like. See 42 U.S.C. § 1395w

- 3a(c). As the Hospitals see it,
HHS can adjust ASP to arrive at a metric that better reflect s the prices paid by hospitals alone

. But nothing in subclause (II)’s general adjustment authority suggests that it is so narrowly
focused. And in any event , to the extent HHS might adjust ASP

to more accurately reflect prices paid by hospitals, it is unclear whether there would then remain any apprecia ble difference between such a hospital

- specific ASP and hospital acquisition costs. Yet the Hospitals’ whole point is that HHS cannot rely on its subclause (II) adjustment authority to approximate acquisition costs.

Especially i n view of the Hospitals’ i nability to present an interpretation of HHS’s subclause (II) adjustment authority that would give it meaningful independent content, we cannot conclude that the statute forecloses HHS from reducing SCOD reimbursement rates for 340B hospitals with the object of bring ing payments into alignment with acquisition costs.28

Rather, in the specific circumstances of this case, HHS permissibly read the statute to allow it to implement the 340B payment reduction

. Although subclause (I) calls for the
“av erage acquisition cost” payment metric to “tak[e] into
account” subparagraph (D)’s survey data

, here, HHS relied on data of undisputed reliability

. Moreover, the agency acted on
that data in a cautious way, adopting a “conservative, lower

bound estimate” of the 340B discount’s size

. 82 Fed. Reg. at 52,504 (quotation marks omitted). In those circumstances, HHS reasonably concluded that it need not continue subsidizing 340B providers with Part B (i.e. taxpayer) funds and Medicare beneficiaries’ copayments

. We of course do not consider the wisdom of that decision as a policy matter in the
first instance , but only whether the agency had statutory authority to reach it. See Chevron , 467 U.S. at 845. We
conclude that the agency’s decision rests on a permissible understanding of its statutory authority.

Shifting tack, t he Hospitals contend that even if HHS can seek to approximate acquisition costs in exercising its subclause (II) adjustment authority, HHS’s 28.5% rate cut is simply too large and swee ping to qualify as an “adjustment.”
That argument falls short under a straightforward application
of Chevron

. The statutory term “adjust” is ambiguous as to
size. The Hospitals offer various definitions of “adjust” that
include qualifiers such as “slightly

, ” e.g. , Adjust , Oxford Dictionaries, https://www.lexico.com/definition/adjust (“alter or move (something) slightly in order to achieve the desired fit, appearance, or result”)

, but HHS responds with many definitions that lack such qualif iers

, e.g., Adjust , Merriam

Webster, https://www.merriam

- webster.com/dictionary/ adjust (“to bring to a more satisfactory state”)

.

The Hospitals poin t to our decision in Amgen , which
considered a n “adjustment” under HHS’s subparagraph (2)(E)29

authority to make equitable adjustments. In the course of upholding the challenged adjustment

, we observed that “similar limits inhere in the term ‘adjustments’ to those the Supreme Court found in the word ‘modify’” in MCI
Telecomms

. Corp v. Am. Tel. & Tel. Co. , 512 U.S. 218, 225 (1994). Amgen , 357 F.3d at 117. And the MCI Court stated
that “ modify ” means “to change moderately or in minor
fashion.” MCI , 512 U.S. at 225. But we do not read Amgen to prescribe that “adjust” in the OP PS statute refers only to minor changes. To the contrary, Amgen explained that it “ha[d] no occasion to engage in line drawing to determine when ‘adjustments’ cease being ‘ adjustments. ’ ” 357 F.3d at 117.
Even if there are limits to what HHS could permissibly
consider an “adjustment,” that line has not been crossed here

, where the agen cy acted on a conservative estimate drawn from data of undisputed reliability.

The Hospitals’ last argument is that HHS’s subclause (II) adjustment authority does not allow adjusting reimbursement rates for 340B hospitals alone

. A ccording to the Hospita ls , the reimbursement rate set under subclause (II) must be uniform across all hospitals

. The Hospitals rely on subclause (I)’s statement that payment rates set under that provision must equal “ t he average acquisition cost for the drug for that year (whic h, at the option of the Secretary, may vary by hospital

group (as defined by the Secretary based on volume of covered OPD services or other relevant characteristics)).” 42 U.S.C. § 1395 l (t)(14)(A)(iii)(I) (emphasis added)

. The Hospitals
stress that subclause (II), by comparison, says nothing about authority to vary the average price metric by hospital group. That silence, to the Hospitals, means that when HHS sets SCOD reimbursement rates under subclause (II)

, it must apply
the same rate to every re cipient hospital.30

Congress , however, was not silent about HHS’s adjustment power in subclause (II)

. Whereas subclause (I) does not grant HHS any general authority to adjust reimbursement rates, subclause (II) affirmatively grant s HHS general adjustment authority for deployment “as necessary for purposes of” paragraph (14). And as explained, HHS

reason ably believes that a central purpose of paragraph (14) is to accurately reimburse hospitals for their acquisition costs. There is no reason to think that HHS’s general adjustment authority when acting under subclause (II) excludes the more
focused license to vary rates by hospital group when acting under subclause (I). In particular, t he Hospitals provide no reason why , if HHS knows that a certain group of hospitals has far lower (or far higher) costs than others, Congress would want to preclude HHS from acting on that information in a suitably tailored fashion when exercising its adjustment authority under subclause (II)

. At a minimum, the statute does not clearly preclude HHS from adjusting the SCO D rate in a
focused manner to address problems with reimbursement rates applicable only to certain types of hospitals

. That is enough to reject the Hospitals’ argument under Chevron

.

* * * * *

For the foregoing reasons , we reverse the judgment of the
district court.

So ordered

.

### P ILLARD


### , Circuit Judge , dissenting in part: I agree with my colleagues that the Medicare O utpatient P rospective
P ayment S ystem (OPPS) statute does not preclude judicial
review of HHS’s 28.5% reduction in reimbursement rates to 340B hospitals that administer Specified Covered Outpatient Drugs (SCODs) . On the merits, however, I disagree that subclause (II) authorized HHS to implement for 340B hospitals
alone the challenged rate reductions in its 2018 and 2019 OPPS
rules.

The statute sets forth two alternative bases for HHS’s
calculation of the relevant reimbursement rates: It may set
those rates under subclause (I) based on average acquisition cost ( reflecting the average cost that hospitals actually incurred in purchasing the drug ), or under subclause (II) based on

average sales price ( reflecting the average price , updated quarterly, at which manufacturers s old the drug to m ost purchasers , not limited to hospitals ). See 42 U.S.C. § 1395 l (t)(14)(A)(iii)(I)

- (II). When the two subclauses at issu e here are read together, the conclusion is unavoidable that HHS may institute its large reductions, tailored for a distinct hospital group, only under subclause (I), which requires the agency to
take into account specific data undisputedly absent here

.
The majority conclu des that HHS may act on other data (not meeting Congress’ specifications) to make those
reductions pursuant to subclause (II ) . That reading impermissibly nullifies subclause (I) and the data requirements spelled out at length in subparagraph (D)

. See id

. § 1395 l (t)(14)(D). I would therefore hold that the agency’s interpretati on of subclause (II) is foreclosed at Chevron step

one. Because HHS’ s actions cannot be squared with the text of the OPPS statute, I respectfully dissent from part III of the majority opinion.

* * *

### 2

Reproduced in full, subclauses (I) and (II) prov ide that, for every year after 2005, the reimbursement rate “shall be equal, subject to subparagraph (E)”

—

(I) to the average acquisition cost for the drug for that year (which, at the option of the Secretary, may vary by hospital group (as defined by the Secretary based on the volume of covered [outpatient department] services or other relevant characteristics)), as determined by the Secretary taking into account the hospital acquisition cost survey data under subparagraph (D); or

(II) if hospital acquisition cost data are not available, the average price for the drug in the year established under section 1395u(o) of this title,
section 1395w

- 3a of this title, or section 1395w

- 3b of this title, as the case may be, as calculated and adjusted by the Secretary as necessary for purposes of this paragraph.

42 U.S.C. § 1395 l (t)(14)(A)(iii). Subparagraph (E) in turn authorizes the Secretary to make “adjustment[s] in payment rates for overhead costs,” for instance to account for “pharmacy
services and handling costs

, ” based on the findings of a 2005 Medicare Payment Advisory Commission (MedPAC) report

. Id

. § 1395 l (t)(14)(E)

.

The two subclauses together provide that, if HHS sets reimbursements rates based on hospitals’ actual average acquisition co sts, HHS must consider congressionally specified acquisition

- cost data

. See id . § 1395 l (t)(14)(D). And

— crucial
for the challenged differential reimbursement rate for 340B hospitals

— HHS may only segment reimbursement rates by hospital group if it has collected the specified data and set the rates keyed to hospital acquisition cost s in view of that data

.

### 3

The two subclauses operate as alternatives : S ubclause (I) lays out what the agency ma y do when it has
collected and taken into account the “hospital a cquisition cost survey data under subparagraph (D)

, ” whereas s ubclause (II) lays out what the agency may do “if the hospital acquisition
cost data are not available.” Id

. § 1395 l (t)(14)(A)(iii)

. If the agency has th at data, it may set reimbursement rates based on the “average acquisition cost for the drug for that year,” and “vary by hospital group ” any reimbursement rates

. Id

. § 1395 l (t)(14)(A)(iii)(I). But “if hospital acquisition cost data are not available,” i d . § 1395 l (t)(14)(A)( iii)(II), the agency

must set reimbursement amounts under subclause (II) by resort to what it has previously called the “statutory default” rate for a given drug in a given year

, s ee, e.g. , 2013 OPPS Rule

, 77 Fed. Reg. 68,210, 68,386 (Nov. 15, 2012) . That statutory default rate is the drug’s average sales price charged to hospitals, clinics, pharmacies, and other providers , drawn from data that drug manufacturers submit to HHS every quarter

. S ee id

. § § 1395w

- 3a(c), 1396r

- 8 (b)(3)(A)(iii). Subclause (II) provides for the average sales price to be “adjusted . . . as necessary for purposes of this paragraph” but , unlike
subclause (I), grants no authority to vary the reimbursement rates by hospital group

. Id . § 1395 l (t)(14)(A) (iii)(II)

.
As everyone agrees, HHS has never collected the “hospital acquisition cost data” that the statute contemplates, so must proceed under its subclause (II) authority to set reimbursement
rates for the 2018 and 2019 OPPS rules

. See, e.g. , HHS Br. 9 ; 2018 Proposed OPPS Rule, 82 Fed. Reg. 33,558, 33,634 ( proposed July 20, 2017). The question before us is whether the agency may set and vary by hospital group SCOD
reimbursement rates in the manner that subclause (I)
authorizes , without collecting and considering the data that subclause (I) specifies

, b y invoking its authority under subclause (II) to adjust the average

- sales

- price

- based

### 4

reimbursement rate and, in effect, simply deem that to be a rate reflecting hospitals’ average acquisit ion cost

. The majority concludes that the agency’s circumvention of subclause (I) in this manner is a permissible construction of the statute for several reasons, none of which I find persuasive.

First, the majority argues, based primarily on the text of subclause (I) and other provisions in the OPPS statute , that Congress’ “primary goal is to reimburse providers for their acquisition costs.” Maj. Op. at 21. But the statute’s overarching goal is not its only goal, to be achieved however the agency se es fit. When it comes to Medicare Part B payments for SCODs, p aragraph (14) specifically tells us when
and how Congress intended HHS to pursue acquisition

- cost

based reimbursement. Only subclause (I), not subclause (II)

, authorizes HHS to set different reimbursement rates for distinct hospital groups

— rather than a uniform, drug

- by

- drug “average price for the drug in the year

, ” 42 U .S.C. § 1395 l (t)(14)(A)(iii)(II)

— and to do so only by taking into
account the different acquisition costs identified in the robust, hospital

- specific data that Congress requir ed the agency to
collect.

The majority finds it inconceivable that Congress would require the same sales

- price

- based reimbursement rate for all types of hospitals whe n hospitals’ acquisition costs vary widely. See, e.g.

, Maj. Op. at 24. But in authorizing the

average

- sales

- price methodology , which takes account of most discounts and rebates that purchasers receive

, Congress was
attuned to the many factors rendering non

- uniform the amounts different hospitals actually pay for the same drugs

. Given Congress’ awareness that various hospitals

— not only 340B hospitals

— pay mor e or less than others, I see nothing inconceivable about Congress requiring disparities in
reimbursement rates to certain types of hospitals to be

### 5

identified and acted upon based only on the most complete and

accurate data.

If Congress wanted HHS, in the a bsence of subclause (I) ’s hospital

- specific data regarding average acquisition cost s , just

to do its best to approximate those costs and then vary them by hospital groups according to its unchecked policy judgment , it easily could have written the statute to say so. Instead, subclause (II) mandate s that the base reimbursement rate “shall be equal” to the specified drug’s statutory def ault rate premised on average sales price , subject to adjustments, and entirely omits the authority granted in subclause (I) to “vary by hospital group” the pricing data or resultant rate . 42 U.S.C. § 1395 l (t)(14)(A)(iii). I cannot discern in the statute any congressional intention that the adjustment authority be used to

set markedly different prices for different hospital groups . I
would instead affirm the district court’s conclusion that HHS “cannot fundamentally rework the statutory scheme

— by applyin g a different methodology than the provision requires

— to achieve under sub[clause] (II) what [it] could not do under sub[clause] (I) for lack of adequate data.” Am. Hosp. Ass’n v. Azar , 348 F. Supp. 3d 62, 82 (D.D.C. 2018).

Second, the majority reasons that this data

- sensitive reading of the two subclauses cannot be correct because it “renders subclause (II)’s adjustment authority superfluous.” Maj. Op. at 24

. But the Hospitals’ reading of the subclause ( II ) adjustment authority as primarily cr oss

- referencing
incremental modifications like the overhead

- cost adjustment described in subparagraph (E) does not make the former altogether redundant. As the Hospitals explain, subparagraph (E) authorized adjustments for overhead with
reference to a one

- time, 2005 MedPAC report , whereas subclause (II)’s authority to make “adjust[ments]

. . . as necessary for purposes of this paragraph

, ” 42 U.S.C.

### 6

§ 1395 l (t)(14)(A)(iii)(II)

, encompasses “adjustments” for
overhead in the same manner on an ongoing basis

. See Hospitals Br. 5

- 6, 49.

In any event, reading section 1395 l (t)(14 ) to contain overlapping references to a limited adjustment authority

— making “double sure” the point is made

— does not create the
kind of superfluity that renders a statute ambiguo us. Mercy Hosp., Inc. v. Azar , 891 F.3d 1062, 1068 (D.C. Cir. 2018) (quoting Fla. Health Scis. Ctr., Inc. v. HHS , 830 F.3d 515, 520 (D.C. Cir. 2016)). A s we have recognized with respect to th e Medicare statute, a “little overlap, either by accident or design, is to be expected in any complex statutory scheme with interdependent provisions” and does not alone create ambigu ity

. Id

. The fact that average price data lumps together pharmaceutical sales to hospitals f rom sales to non

- hospital providers seems to explain Congress’ clear decision to omit
from subclause (II) the authority in subclause (I) to vary reimbursement by hospital group . W ithout subclause (I)’s hospital

- specific cost data, billion

- dollar decisions differentiating among particular hospital groups c ould rest on significantly less exact information

.

Moreover , to the extent that past agency practice bears on the question of statutory construction before us, it only confirms the Hospitals’ reading that the agency’s
subclause (II) adjustment authority references overhead adjustment s like th ose contemplated by subparagraph (E). As the agency described at length in 2012, during the preceding six years HHS had made no adjustments to its estimate of average sales prices other than occasional small tweaks to account for overhead costs (and, in any case, purported to rely only o n its subclause (I) authority). See 2013 OPPS Rule, 77 Fed. Reg. at 68,383

- 86 (explaining the agency’s methodology year by year over this period); see also 2016 OPPS Rule, 80

### 7

Fed. Reg. 70,298, 70,439 (Nov. 13, 2015) (providing a similar summary of the age ncy’s past methodology); Hospitals Br. 49 (“[W]hen HHS previously made adjustments to the ASP

- plus

6% rate, it explained at the time that it was doing so to account for estimates of overhead.”). Indeed, the focus of the agency in those years was on collec ting more accurate overhead

- cost data to better tailor its adjustments. See, e.g.

, 2013 OPPS Rule, 77 Fed. Reg. at 68,385. And, in the five years before the two challenged rules at issue, the agency simply adopted the statutory default rate of 106% of th e average sales price under subclause (II) without making any adjustments at all. See 2018 OPPS Rule, 82 Fed. Reg. 52,362, 52,490 (Nov. 13, 2017).

In sum , at no point in any of the materials that the majority
cites

— and at no point of which I am aware

— has HHS ever previously used its subclause (II) adjustment authority to make adjustments that are not modest changes to account for overhead. HHS itself has not claimed otherwise in its briefing before us. And HHS certainly has never used that adjustment

aut hority to implement variations by hospital group. See, e.g.

, HHS Br. 13 (“The final rule for 2018 established a new sub

classification for drugs purchased by 340B providers

. . . .” (emphasis added)).

T h e Hospitals’ limited reading of the adjustment authority that subclause (II) confers is supported by our previous caution that the term “adjustment” in this statute

— like the term “modify” at issue in MCI Telecommunications Corp. v. AT&T
Co. , 512 U.S. 218, 225 (1994), which the Court held “means to change moderately or in minor fashion”

— cannot permit “basic and fundamental changes in the scheme.” Amgen, Inc. v.
Smith , 357 F.3d 103, 117 (D.C

. Cir. 2004) (quoting MCI

, 512 U.S. at 225). The majority distinguishes Amgen by quoting our ob servation there that we had “no occasion to engage in line drawing to determine when ‘adjustments’ cease

### 8

being ‘adjustments.’” Id

. But that observation made eminent sense in a dispute “involving only the payment amount for a single drug,” and w e went on to warn that a “more substantial departure from the default amounts would, at some point, violate the Secretary’s obligation to make such payments and cease to be an ‘adjustment

. ’” I d

. (alteration omitted). Given the scale and segmentation of the rate cut at issue

— reducing SCOD reimbursements by nearly a third , thereby eliminating $1.6 billion annually in reimbursements to many of the most financially vulnerable hospitals in the Medicare program

— I
dis agree th at, “ [e] ven if there are limits to what HHS could permissibly consider an ‘adjustment,’ that line has not been
crossed here.” Maj. Op. at 29

.
Not only is the majority wrong to reject the Hospitals’ reading as creating unexplained surplusage

, see Maj. Op.

at 2 4

- 2 7

, but the superfluity concern s cut decisively the other

way. As discussed above, t he majority essentially read s subclause (I) out of the statute by permitting the agency to do under subclause (II) without the requisite data what
subclause (I) authorizes only with that data

. The majority also renders superfluous the entirety of subparagraph (D)

. See
42 U.S.C. § 1395 l (t)(14)(D). That s ubparagraph, occupying nearly a full column in the U.S. Code, specifies in detail how the “[a]cquisition cost survey for hospital outpatient drugs” is
to be conducted , first by the G overnment A ccountability O ffice (GAO) and later by HHS , after that agency has “tak[en] into
account” the Co m ptroller General’s “recommendations” as to the “frequency and methodology of subsequent surveys.” I d

. § 1395 l (t)(14)(D)(i)

- (ii). S ub paragraph (D) further includes a provision dealing with “survey requirements

, ” mandating that
the GAO and HHS surveys “shall have a large sample of hospitals that is sufficient to generate a statistically significant estimate of the average hospital acquisition cost for each specified covered outpatient drug

. ” Id

. § 1395 l (t)(14)(D)(iii).

### 9

A nd a later c lause details how acquisition

- cost variations by hospital group are to be identified in GAO’s initial surveys if they are to justify reimbursement

- rate variation s , noting that
the Comptroller General “shall determine and report to Congress if there is (and the extent of any) variation in hospital acquisition costs for drugs among hospitals based on the volume of covered [outpatient department] services performed by such hospitals or other relevant characteristics of such hospitals (as defined by the Comptroller General).” Id

. § 1395 l (t)(14)(D)(iv).

The majority’s reading drains each of these provisions of meaning

. It allow s the agency simply to purport to approximate hospital acqui sition costs , and to claim authority

to vary reimbursement rates by hospital group, based on adjusted average price data that HHS recasts as acquisition cost data, but that lacks the characteristics and process of collection that Congress specified in subclause (I)

. T he Hospitals ’ reading does give distinct meaning to subclause (II) ’s allowance for adjustment ; it is the majority’s reading that occasions significant superfluity without regard to Congress’
structural decision to mak e subclause s (I) and (II) distinct
alternatives

.
Finally, the majority repeatedly justifies its reading by reference to the policy benefits of the agency’s rate reductions and the reasonableness of the agency’s alternative data and resulting estimates. See, e.g.

, Maj. Op. at 18, 20, 2 2

, 24, 2 7

- 28

. T he majority views it as relevant “backdrop,” for example, tha t

one result of the agency’s proposed cuts will be to lower

copay ment s for Medicare beneficiaries served by 340B hospitals , and to avoid the prospect of any beneficiary possibly paying more in a copayment than the hospital pa id to buy the prescribe d drugs. Id. at 20 ; but see HHS Off

. of Inspector Gen

. , OEI

- 12

- 14

- 00030, Part B Payments for 340B

- Purchased

### 10

Drugs 9 n.26 (Nov. 2015) (OIG Report) (noting that 340B hospitals “may waive all or part of the beneficiary’s coinsurance”). And the majority notes HHS’s worries that 340B hospitals might overprescribe drugs that bring
reimbursement revenue. See Maj. Op. at 7; but see U.S. Gov’t Accountability Off

. , GAO

- 15

- 442, Medicare Part B Drugs:
Action Needed to Reduce Financial Incentives to Prescribe 340B Drugs at Participating Hospitals 31 (June 2015) (noting HHS’s view that “higher spending for Part B drugs at 340B hospitals” might “lead to better clinical outcomes” for patients served by those safety

- net hospitals, who often are in
“me aningful[ly]” poorer health than other patients). T he majority also expresses confidence that the agency examined

“ data of undisputed reliability, ” Maj. Op. at 28

, “acted on that data in a cautious way,” id

. , and implemented a “fair, or even conservative, measure of the reduction needed to bring payments to those hospitals in parity with their costs to obtain the drugs,” id

. at 20 . “In those circumstances,” the majority
declares , “HHS reasonably concluded that it need not continue subsidizing 340B providers with Part B (i.e. taxpayer) fund s and Medicare beneficiaries’ copayments.” Id

. at 2 8

.

Those circumstances would perhaps be relevant were this

a challenge to the agency’s rule s as arbitrary and capricious

. But concerns about the program ’s effect s , and confidence in
the agency’s care in us ing data other than those the statute requires

, c annot somehow authori ze the agency to do what th e
statute does not

. As the Supreme Court has held, an “agency has no power to ‘tailor’ legislation to bureaucratic policy goals by rewriting unambiguous statutory terms.” Util. Air Regulatory Grp v. EPA , 573 U.S. 302, 325 (2014). And, unmoored from the statute’s express data

- quality requirements, the asserted reliability of the quite different data HHS gathered here provides no assurance for its next rulemaking

. Whether
HHS’s actions might have perceptible policy advantages do es

### 11

n ot affect whether the statute authorizes what the agency has
done.

It bears noting that, e ven were they relevant, the claimed policy benefits of the agency’s new rate reductions are far from
clear. The Section 340B drug discount program, enacted in
1992 a s part of the Public Health Service Act, see 42 U.S.C. § 256b, permits 340B hospitals to “generate revenue” through “insurance reimbursement[] that may exceed the 340B price paid for the drugs.” U.S. Gov’t Accountability Off

. , GAO

- 11

- 836, Manufacturer Dis counts in the 340B Program Offer Benefits, But Federal Oversight Needs Improvement 2 (2011) (GAO Report)

. As HHS itself has recognized, Congress anticipated that such above

- cost reimbursement revenue would help to fund the public and n onprofit safety

- net hospitals that qualify for 340B pricing : “ Under the design of the 340B Program and Part B payment rules, the difference between what Medicare pays and what it costs to acquire the drugs is fully retained by the participating covered entities, allowing
them to stretch scarce Federal dollars in service to their
communities. ” OIG R eport i ( E xecutive S ummary) ; see also
HHS Off

. of Inspector Gen

. Memorandum Report: Payment for Drugs Under the Hospital Outpatient Prospective Payment System 8 (Oct. 2 2, 2010) (describing above

- cost SCOD reimbursements to 340B hospitals as “an expected result given the purpose of the 340B Program”)

.
The challenged rule s took a major bite out of 340B hospitals’ funding

. Often operating at substantial losses, 340B hospitals rely on the revenue that Medicare Part B provides in
the form of standard drug

- reimbursement payments that exceed those hospitals’ acquisition costs. 340B hospitals “have used
the additional resources to provide critical healthcare services to communities with underserved populations that could not otherwise afford these services.” Hospitals Br. 9 (citing GAO

### 12

Report at 17

- 18) ; see also Cares Cmty. Health v. HHS

, 944 F.3d 950, 955 (D.C. Cir. 2019)

. Alt hough stakeholders
have debated “ whether statutory changes should be made to enable Medicare and/or Medicaid to share in these savings ,” OIG Report 2, Congress has not made any such change. A nd

,
a s written, subparagraph (E) does not empower the Secretary to “adjust” away from 340B hospitals substantial annual

revenue the y garner under the separate, unchallenged 340B

statute to provide care to underserved communities

.

T he net effect of HHS’s 2018 and 2019 OPPS rules is to
redistribute funds from financially strapped

, public and nonprofit safety

- net hospitals serving vulnerable populations

— including patients without any insurance at all

— to facilities
and individuals who are relatively better off. If that is a result
that Co ngress intended to authorize

, it remains free to say so. But because the statute as it is written does not permit the challenged rate reductions, I respectfully dissent.