Opinion for the Court by Senior Circuit Judge GINSBURG.
[816]*816Opinion concurring in part, dissenting in part, and dissenting from the judgment filed by Chief Judge SENTELLE.
Opinion dissenting in part, concurring in part, and concurring in the judgment filed by Senior Circuit Judge WILLIAMS.
GINSBURG, Senior Circuit Judge:
Michael Friedman, Paul Goldenheim, and Howard Udell were executives at the Purdue Frederick Company when it misbranded a drug, to wit, the painkiller Oxy-Contin, a schedule II controlled substance. The Company was convicted of fraudulent misbranding, a felony, whilst the executives were convicted under the “responsible corporate officer” doctrine of the misdemeanor of misbranding a drug. Based upon their convictions, the Secretary of Health and Human Services later excluded the individuals from participation in Federal health care programs for 12 years, pursuant to 42 U.S.C. § 1320a-7(b). They sought review of the Secretary’s decision in the district court, arguing section 1320a-7(b) does not authorize their exclusion and, in any event, the Secretary’s decision was unsupported by substantial evidence and was arbitrary and capricious because she failed to give a reasoned explanation for the allegedly unprecedented length of their exclusions. The district court granted summary judgment for the Secretary.
We hold the statute authorized the Secretary’s exclusion of the three executives but her decision was arbitrary and capricious for want of a reasoned explanation for the length of their exclusions. We therefore reverse the judgment of the district court and direct it to remand the matter to the Secretary for further proceedings.
I. Background
The Appellants were senior corporate officers at Purdue when the Company developed and marketed OxyContin. According to the Information initiating the criminal cases against the Appellants and the Company, the “misbranding” occurred when unnamed employees at Purdue, “with the intent to defraud or mislead, marketed and promoted OxyContin as less addictive, less subject to abuse and diversion, and less likely to cause tolerance and withdrawal than other pain medications.” United States v. Purdue Frederick Co., 495 F.Supp.2d 569, 571 (W.D.Va.2007). Purdue pleaded guilty to felony misbranding, in violation of 21 U.S.C. § 331(a) and § 333(a)(2). Id. at 570. Pursuant to the plea agreement, the district court put the Company on probation for five years, fined it $500,000, and imposed other monetary sanctions totaling approximately $600 million, of which approximately $160 million was earmarked for restitution to Federal and State health care agencies, which had been large buyers of the misbranded drug. Id. at 572. At the same time, the Appellants pleaded guilty to misdemeanor misbranding, in violation of 21 U.S.C. § 331(a) and § 333(a)(1), for their admitted failure to prevent Purdue’s fraudulent marketing of OxyContin; each was sentenced to do 400 hours of community service, fined $5,000, and put on probation for three years. The sentencing court also ordered the Appellants to disgorge compensation they had received from Purdue totaling approximately $34.5 million.
Under the “responsible corporate officer” (RCO) doctrine, a “corporate agent, through whose act, default, or omission the corporation committed a crime” in violation of the Food, Drug, and Cosmetic Act may be held criminally liable for the wrongdoing of the corporation “whether or not the crime required ‘consciousness of wrongdoing’ ” by the agent. United States v. Park, 421 U.S. 658, 670, 95 S.Ct. 1903, 44 L.Ed.2d 489 (1975). Criminal liability under the RCO doctrine extends “not only [817]*817to those corporate agents who themselves committed the criminal act, but also to those who by virtue of their managerial positions or other similar relation to the actor could be deemed responsible for its commission.” Id. A corporate officer may therefore be guilty of misdemeanor misbranding without “knowledge of, or personal participation in,” the underlying fraudulent conduct. Id. The Appellants, as part of their plea agreements, admitted having “responsibility and authority either to prevent in the first instance or to promptly correct” the misrepresentations certain unnamed Purdue employees made regarding OxyContin and thereby, under the RCO doctrine, admitted being guilty of misdemeanor misbranding.
Several months after the Appellants had been convicted, the Office of the Inspector General (OIG) of the Department of Health and Human Services determined the Appellants should be excluded from participation in Federal health care programs for 20 years, pursuant to 42 U.S.C. § 1320a — 7(b)(1) and (3).
The executives appealed the OIG’s determination to an Administrative Law Judge and ultimately to the Departmental Appeals Board, to which the Secretary had delegated authority to review decisions to exclude an individual. During the pendency of the appeal to the ALJ, the OIG reduced the length of the exclusion to 15 years because the Appellants had assisted law enforcement authorities to combat abuse of OxyContin, a mitigating factor. The ALJ affirmed the 15-year exclusion as being within a “reasonable range.” The DAB affirmed that decision, interpreting the statute to authorize the exclusion of an individual convicted of a misdemeanor when the facts underlying that conviction have a “nexus or common sense connection” either to fraud or to the distribution of a controlled substance. The DAB found the Appellants’ “misdemeanor misbranding offense” had the requisite connection to fraud because “[t]he actual misbranding that resulted in [their] conviction was the [Company’s] fraudulent misbranding of OxyContin.” The DAB further reduced the length of the exclusion to 12 years on the ground the “ALJ’s finding that [the Appellants’] crimes had an adverse impact on program beneficiaries and others is not supported by substantial evidence” be[818]*818cause there is no evidence the misbranded Oxyeontin had any adverse effect.
The Appellants sought review in the district court, which held the statute authorized their exclusion because, “by its plain terms, section 1320a-7(b)(l) appears to permit the exclusion of anyone convicted of an offense ‘having a connection with or reference to’ fraud or financial misconduct in the delivery of a health care item or service.” Friedman v. Sebelius, 755 F.Supp.2d 98, 107-08 (D.D.C.2010) (quoting Morales v. Trans World Airlines, Inc., 504 U.S. 374, 384, 112 S.Ct. 2031, 119 L.Ed.2d 157 (1992)).* The district court upheld the length of the exclusion because it concluded the DAB’s application of the aggravating and mitigating factors was supported by substantial evidence. Id. at 117.
II. Analysis
We review the judgment of the district court de novo. Se. Ala. Med. Ctr. v. Sebelius, 572 F.3d 912, 916 (D.C.Cir.2009) (“In reviewing HHS’s actions on appeal from the district court, this court addresses the issue de novo, without deference to the decision of the district court” (internal quotation marks and citation omitted)). We are to uphold the Secretary’s decision to exclude the Appellants if it was “based on substantial evidence in the record and correctly applie[d] the relevant legal standards.” Rossello v. Astrue, 529 F.3d 1181, 1184 (D.C.Cir.2008) (internal quotation marks and citation omitted); see also 42 U.S.C. § 1320a-7(f) (providing for review pursuant to 42 U.S.C. § 405(g) of the Secretary’s decision to exclude an individual); id. § 405(g) (“The findings of the [Secretary of Health and Human Services] as to any fact, if supported by substantial evidence, shall be conclusive”). We will defer to the Secretary’s reasonable interpretation of the statute she administers. Sullivan v. Everhart, 494 U.S. 83, 88-89, 110 S.Ct. 960, 108 L.Ed.2d 72 (1990) (applying Chevron deference in reviewing per § 405(g) Secretary’s interpretation of the Social Security Act).
The Appellants contend section 1320a-7(b)(1) does not authorize their exclusion because misdemeanor misbranding is not a “misdemeanor relating to fraud.” They also argue that, even if the statute authorizes their exclusion, the Secretary’s decision to exclude them for 12 years was unsupported by substantial evidence and was arbitrary and capricious.
A. Statutory Grounds for the Appellants’ Exclusion
The Appellants first argue misdemeanor misbranding is not a “criminal offense consisting in a misdemeanor relating to fraud” because it lacks the allegedly requisite “ ‘generic’ relationship to fraud.” On their view, it is not enough for the conduct underlying a particular conviction to be factually related to fraud; the generic misdemeanor must comprise the “core elements” of fraud, one of which is scienter. Misdemeanor misbranding does not necessarily require a culpable mental state because a conviction for the offense may be, and in this case was, predicated upon the responsible corporate officer doctrine, which entails strict liability. The Secretary defends her interpretation by arguing that under the DAB’s “ ‘intuitive, ordinary reading’ of the statute, [the Appellants’] convictions ... ‘relate to’ fraud or unlawful distribution of a controlled substance [because] there is a ‘nexus’ or ‘common sense connection’ between their convictions and those statutory bases for exclusion.”
This case therefore presents the question whether the phrase “misdemean- [819]*819or relating to fraud” in section 1320a7(b)(l)(A) refers to a generic criminal offense or to the facts underlying the particular defendant’s conviction. As the Supreme Court has pointed out, “in ordinary speech words such as ‘crime,’ ‘felony,’ ‘offense,’ and the like sometimes refer to a generic crime, say, the crime of fraud or theft in general, and sometimes refer to the specific acts in which an offender engaged on a specific occasion, say, the fraud that the defendant planned and executed last month.” Nijhawan v. Holder, 557 U.S. 29, 33-34, 129 S.Ct. 2294, 174 L.Ed.2d 22 (2009). The “categorical approach,” according to which the statutory term refers to the generic criminal offense, “prohibits the later court from delving into particular facts disclosed by the record of conviction” and directs that court to “look only to the fact of conviction and the statutory definition of the prior offense,” including the elements of that offense. Shepard v. United States, 544 U.S. 13, 17, 125 S.Ct. 1254, 161 L.Ed.2d 205 (2005) (internal quotation marks and citation omitted). Under the “circumstance-specific” approach, by contrast, the statutory term refers to the particular conduct giving rise to the conviction and so the court “must look to the facts and circumstances underlying an offender’s conviction” to determine whether that conviction is covered by the statute. Nijhawan, 557 U.S. at 34, 129 S.Ct. 2294. Whether the Congress intended the categorical or the circumstance-specific approach is to be discerned from the text, structure, and purpose of the particular statute at issue. Compare Taylor v. United States, 495 U.S. 575, 600-602, 110 S.Ct. 2143, 109 L.Ed.2d 607 (1990) (applying “formal categorical approach” to phrase “any crime ... that ... is burglary” in statute providing for sentencing enhancement based upon defendant’s prior convictions), with Nijhawan, 557 U.S. at 36, 129 S.Ct. 2294 (applying circumstance-specific approach to phrase “fraud or deceit in which the loss to the victim or victims exceeds $10,000” in statute providing for deportation).
Although a reviewing court proceeding under section 405(g) generally defers to the Secretary’s interpretation of an ambiguous provision of a statute she administers, see Everhart, 494 U.S. at 88-89, 110 S.Ct. 960, the Appellants argue her interpretation of section 1320a-7(b)(l)(A) in this case does not warrant deference: “Nothing in the exclusion statute evinces Congress’ intent to empower the agency to ‘speak with the force of law1 ... when addressing ambiguities in the phrase[] ‘misdemeanor relating to fraud.’ ” Brief at 20, quoting United States v. Mead Corp., 533 U.S. 218, 229, 121 S.Ct. 2164, 150 L.Ed.2d 292 (2001). They contend the Congress did not delegate authority to interpret the phrase “misdemeanor relating to fraud” because that phrase is a term of art in criminal law and therefore outside the scope of the Secretary’s subject-matter expertise and more suited to judicial interpretation.
Courts defer to an agency’s interpretation of a law it administers only to the extent the Congress has delegated interpretive authority to the agency. Adams Fruit Co. v. Barrett, 494 U.S. 638, 649, 110 S.Ct. 1384, 108 L.Ed.2d 585 (1990).* With respect to section 1320a-[820]*8207(b)(1), however, we need not decide whether the Congress authorized the Secretary “to speak with the force of law when [she] addresses ambiguity in the statute,” Mead Corp., 533 U.S. at 229, 121 S.Ct. 2164, because the statute unambiguously authorizes her to exclude the Appellants. The text, structure, and purpose of the statute, viz., to protect Federal health care programs from financial harm wrought by untrustworthy providers, all indicate the Secretary’s circumstance-specific approach is proper; i.e., the statute authorizes exclusion of an individual whose conviction was for conduct factually related to fraud.
Section 1320a-7(b)(1)(A), 42 U.S.C. § 1320a-7(b)(l),* provides:
(b) Permissive exclusion
The Secretary may exclude ... from participation in any Federal health care program ...
(1) Conviction relating to fraud Any individual or entity that has been convicted ...
(A) of a criminal offense consisting of a misdemeanor relating to fraud, theft, embezzlement, breach of fiduciary responsibility, or other financial misconduct....
The key phrase in this provision is “relating to,” the “ordinary meaning of [which] is a broad one — ‘to stand in some relation; to have bearing or concern; to pertain; refer; to bring into association with or connection with.’ ” Morales, 504 U.S. at 383, 112 S.Ct. 2031 (quoting Black’s Law Dictionary 1158 (5th ed.1979)); see also Metropolitan Life Ins. Co. v. Mass., 471 U.S. 724, 739, 105 S.Ct. 2380, 85 L.Ed.2d 728 (1985) (“The phrase ‘relate to’ [has a] broad common-sense meaning” and a statutory provision containing the phrase therefore has “broad scope”). Accordingly, just as the Secretary contends, a misdemeanor “relat[es] to” fraud “in the normal sense of the phrase, if it has a connection with, or reference to” fraud, Ingersoll-Rand Co. v. McClendon, 498 U.S. 133, 139, 111 S.Ct. 478, 112 L.Ed.2d 474 (1990). The established meaning of these “deliberately expansive” words, Pilot Life Ins. Co. v. Dedeaux, 481 U.S. 41, 46, 107 S.Ct. 1549, 95 L.Ed.2d 39 (1987), is therefore at odds with the Appellants’ crabbed and formalistic interpretation. Rather than referring only to generic misdemeanor offenses that share all the “core elements” of fraud, the capacious phrase includes any criminal conduct that has a factual “connection with” fraud. Cf. Morales, 504 U.S. at 388-89, 112 S.Ct. 2031 (“compelling or restricting ‘[p]riee advertising surely “relates to” price’ ” because “it is clear as an economic matter that state restrictions on fare ad[821]*821vertising have the forbidden significant effect upon fares” (citation omitted)).
The rest of section 1320a-7(b)(l)(A) confirms its broad scope. It authorizes the Secretary to exclude not only a person convicted of “a criminal offense consisting of a misdemeanor relating to fraud” but also one convicted of “a criminal offense consisting of a misdemeanor relating to ... theft, embezzlement, breach of fiduciary duty, or other financial misconduct.” The residual clause “other financial misconduct” expressly refers to a type of “conduct,” not to a genus of criminal offense. The relationship of a “misdemean- or” to “other financial misconduct” must therefore be a factual one. The term “misdemeanor” accordingly refers to the particular circumstances of an individual’s conviction, and “relating to” must denote a factual relationship between the conduct underlying the misdemeanor and the conduct underlying a “fraud.”
The heading of section 1320a-7(b)(l) (“Conviction relating to fraud”) further supports this reading of the provision. “Although the title of a statute and the heading of a section cannot limit the plain meaning of the text, they remain tools available for the resolution of a doubt about statutory meaning.” Hays v. Sebelius, 589 F.3d 1279, 1282 (D.C.Cir.2009) (internal quotation marks and citation omitted); see also INS v. Nat’l Ctr. for Immigrants’ Rights, Inc., 502 U.S. 183, 189, 112 S.Ct. 551, 116 L.Ed.2d 546 (1991) (“[T]he title of a statute or section can aid in resolving an ambiguity in the legislation’s text” (citations omitted)). In the heading to section 1320a-7(b)(l) as enacted, “relating to fraud” modifies “[c]onviction.” See Medicare and Medicaid Patient Program Protection Act of 1987, Pub.L. No. 100-93, 101 Stat. 680 (1987) (codified at 42 U.S.C. § 1320a-7). In the provision itself, of course, “relating to fraud” modifies “misdemeanor.” Thus, we see the Congress used “conviction” and “misdemeanor” interchangeably, and a “conviction,” is, of course, a particular event on a particular occasion and so refers to a set of facts, and not to a generic crime. Hence, the parallel between the heading of section 1320a — 7(b)(1) and the text of section 1320a-7(b)(l)(A) implies the word “misdemeanor” also refers to the facts underlying a particular conviction.
The text and structure of the provisions adjoining section 1320a-7(b)(l)(A) further confirm this interpretation. In both section (b)(1)(B) and section (b)(2), the phrase “relating to” denotes a factual relationship. The former provision authorizes the Secretary to exclude a person convicted of “a criminal offense relating to fraud ... with respect to any act or omission in a program (other than a health care program) operated by or financed in whole or in part by any Federal, State, or local government agency.” The phrase “fraud ... with respect to any act or omission in a program” does not refer to a generic offense but rather to criminal conduct that, as a matter of fact, relates to a program financed by a government agency. Addressing an analogous phrase in an immigration statute providing for deportation, the Supreme Court explained:
[The phrase] “falsely making, forging, counterfeiting, mutilating, or altering a passport ... except in the case of a first offense for which the alien ... committed the offense for the purpose of assisting ... the alien’s spouse, child, or parent ”... cannot possibly refer to a generic crime. That is because there is no such generic crime; there is no criminal statute that contains any such exception. Thus if the provision is to have any meaning at all, the exception must refer to the particular circumstances in which an offender committed the crime on a particular occasion.
[822]*822Nijhawan, 557 U.S. at 37-38, 129 S.Ct. 2294 (quoting 8 U.S.C. § 1101(a)(43)(P)).
Like the exception in the immigration statute analyzed in Nijhawan, the limiting clause in section (b)(1)(B) does not pick out a generic class of offenses because there is no generic crime of defrauding a program other than a health care program financed in whole or in part by a government agency. Again like the exception in the immigration statute, the limiting clause in section (b)(1)(B), therefore, restricts the scope of the named offense — fraud—to frauds committed in certain factual circumstances. It follows that the “criminal offense” listed in section (b)(1)(B) must “re-latte] to fraud” because it has a factual relationship to conduct committed on a particular occasion.
Section 1320a — 7(b)(2)(ii) similarly authorizes the Secretary to exclude from participation in Federal health care programs any individual “convicted ... in connection with the interference with or obstruction of any investigation or audit related to ... the use of funds received ... from any Federal health care program.” The phrase “the use of funds” does not refer to a generic offense and therefore must refer to specific facts on a particular occasion. As a result, “related to” in this provision denotes a factual connection between an “investigation or audit” and “the use of funds.” It is simply implausible that the Congress used “relating to” in section 1320a-7(b)(l)(B) and the functionally identical phrase “related to” in section 1320a-7(b)(2) to denote a relationship between factual situations but used the same phrase in section 1320a-7(b)(l) to denote a relationship between generic offenses. The only reasonable interpretation is that in all three provisions the phrases refer to a factual relationship. See Mohamad v. Rajoub, 634 F.3d 604, 608 (D.C.Cir.2011) (“the same word[s] appearing in different portions of a single provision or act [are] taken to have the same meaning in each appearance” (internal quotation marks and citation omitted)).
The Appellants offer several arguments for a contrary reading. First, they argue applying the circumstance-specific approach gives no separate meaning to the phrase “relating to” in section (b)(1)(A) and the phrase “in connection with” in sections (b)(l)(A)(i) and (b)(2). According to the Appellants, because “in connection with” denotes a factual relationship between the conviction and “the delivery of a health care item or service” in section (b)(l)(A)(i) and between the conviction and “the interference with or obstruction of any investigation or audit” in section (b)(2), “relating to” in section (b)(1)(A) must denote a generic, not a factual relationship. The Appellant’s interpretation of section (b)(l)(A)(i) (“misdemeanor relating to fraud ... in connection with the delivery of a health care service or item”) is implausible. Under that interpretation, “fraud” would refer in section (b)(1)(A) to a generic criminal offense, to which the “misdemeanor” must “relat[e]” generically, but the same appearance of the same word would refer in section (b)(1)(A)© to the facts underlying the defendant’s conviction, to which the delivery of a health care item or service must be “connected]” factually. An interpretation that requires a single instance of a single word to carry two different meanings in two consecutive clauses of a single sentence simply cannot stand. Far more plausible is the Secretary’s reading that the Congress used “relating to” and “in connection with” each to denote a factual relationship — respectively, the relationship between the facts underlying a person’s conviction and conduct that would qualify as “fraud”; and the relationship between that conduct and the delivery of health care. The use of the phrases “relating to” and “in connection with,” therefore does not imply “relating to” [823]*823must denote a non-factual, generic relationship.*
Next, the Appellants analogize the text of section (b)(1)(A) to a provision of the Immigration and Naturalization Act which authorized the deportation of an alien “convicted of a violation of ... any law or regulation relating to the possession of or traffic in narcotic drugs.” 8 U.S.C. § 1227(a)(b)(i) (1976). The Appellants, citing Castaneda de Esper v. INS, 557 F.2d 79 (6th Cir.1977), contend the Congress “used a verbal formulation — ‘relating to [specified offenses]’ — that had long been used in the INA, and already had a settled meaning” denoting a generic, non-factual relationship. The Secretary effectively counters that “relating to” in the INA has no such settled meaning, contrasting Castaneda, which held a conviction for misprision is not a violation of a law “relating to the illicit possession of or traffic in narcotic drugs” because misprision is “a criminal offense separate and distinct from the particular felony concealed,” 557 F.2d at 83, with Urena-Ramirez v. Ashcroft, 341 F.3d 51 (1st Cir.2003), which held the defendant’s violation of the Travel Act was a “violation of ... any law or regulation ... relating to a controlled substance” because the “conduct underlying the proscribed travel ... was tantamount to aiding and abetting the distribution of narcotics,” id. at 54-55, 57. See also Johnson v. INS, 971 F.2d 340, 342-43 (9th Cir.1992) (holding defendant’s violation of the Travel Act was “violation of ... any law or regulation ... relating to a controlled substance” because the “criminal conduct involved narcotics and controlled substances”).
Moreover, we note the wording of the INA supports the application of the categorical approach much more readily than does the text of section (b)(1)(A). The Appellants err by focusing narrowly upon the phrase “relating to” in the INA, paying no heed to the words connected by that phrase — “law or regulation” and “the possession of or traffic in narcotic drugs.” A “law or regulation,” unlike a “misdemean- or,” cannot refer to the facts of a particular incident.
The Appellants also argue the circumstance-specific approach leads to an “absurd result,” to wit: “Individuals who negligently submit false or fraudulent claims ... are not subject to exclusion under [42 U.S.C. § 1320a-7a(a) ]” whereas, under the Secretary’s approach to section 1320a-7(b), one “who pleads guilty of a strict liability misdemeanor offense that requires no proof of conscious wrongdoing, fraud, or falsehoods is excludable based on misconduct by others that he had no knowledge of.” Viewed in context, however, there is no absurdity. Section 1320a-7a(a) gives the Secretary discretion whether to exclude the individual from participation in Federal health care programs but makes a fine mandatory. The statute at issue here similarly authorizes exclusion but neither requires nor authorizes a fine; for a lesser penalty, a lesser mens rea requirement, or indeed no mens rea requirement at all, is not illogical.
Finally, the Appellants and their amici argue, because the Secretary’s interpretation permits her to impose “career-ending disabilities” upon someone whose criminal conviction required no mens rea, it raises a serious question of validity under the Due [824]*824Process Clause of the Fifth Amendment to the Constitution of the United States. Quoting Morissette v. United States, 342 U.S. 246, 256, 72 S.Ct. 240, 96 L.Ed. 288 (1952), they note the Supreme Court upheld the constitutionality of strict liability crimes “in part, because their associated penalties ‘commonly are relatively small, and conviction does no grave damage to an offender’s reputation.’ ” Section 1320a-7(b)(1), however, is not a criminal statute and, although exclusion may indeed have serious consequences, we do not think excluding an individual under 42 U.S.C. § 1320a-7(b) on the basis of his conviction for a strict liability offense raises any significant concern with due process. Exclusion effectively prohibits one from working for a government contractor or supplier. Surely the Government constitutionally may refuse to deal further with senior corporate officers who could have but failed to prevent a fraud against the Government on their watch.
For the foregoing reasons, we hold section 1320a-7(b)(l)(A) authorizes the Secretary to exclude from participation in Federal health care programs an individual convicted of a misdemeanor if the conduct underlying that conviction is factually related to fraud. The Appellants do not dispute they are excludable under this circumstance-specific approach: Their convictions for misdemeanor misbranding were predicated upon the company they led having pleaded guilty to fraudulently misbranding a drug and they admitted having “responsibility and authority either to prevent in the first instance or to promptly correct” that fraud; they did neither.* Accordingly, section 1320a-7(b)(l)(A) authorized the Secretary to exclude them for a time from participation in Federal health care programs.
B. Length of the Appellants’ Exclusion
The Appellants also challenge the Secretary’s decision to exclude them for fully 12 years, four times as long as the presumptive baseline in the statute: “the period of exclusion shall be 3 years” unless the Secretary adjusts the length of exclusion on [825]*825the basis of aggravating or mitigating factors “in accordance with published regulations.” 42 U.S.C. § 1320a-7(c)(3)(D). The Appellants argue the Secretary took into account two aggravating factors for which there was not substantial evidence, failed to take into account one mitigating factor without substantial evidence for so doing, and gave them too little credit with respect to a second mitigating factor. They also argue the Secretary erred by failing to reconcile the length of their exclusion with the agency’s prior decisions.
1. Aggravating and mitigating factors
First the Appellants claim the Secretary improperly applied the aggravating factor of their being responsible for a financial loss in excess of $5,000 because, they allege, there is no evidence in the record of any actual financial loss. The pertinent regulation establishes an aggravating factor when “[t]he acts resulting in the conviction ... caused ... a financial loss of $5,000 or more to a Government program or to one or more other entities, or had a significant financial impact on program beneficiaries or other individuals.” 42 C.F.R. § 1001.201(b)(2)(i). The Appellants’ argument is frivolous. They admitted responsibility for a crime, misdemean- or misbranding, that caused, at least in part, financial losses for which Purdue paid $160 million in “restitution.” Specifically, Purdue falsely portrayed OxyContin to be less addictive, less subject to abuse and diversion, and less likely to cause tolerance and withdrawal than other painkillers on the market, which misrepresentation certainly led some doctors to prescribe it when they would otherwise have prescribed a different painkiller or none at all. Purdue had almost $3 billion in revenues from OxyContin during the time it misbranded the drug, much of it from Federal and state health care programs which paid for prescriptions for OxyContin, some of which would not have been written but for the misbranding. Even if the amount of restitution to which Purdue agreed was the product of a negotiation unbounded by forensic accounting, as the Appellants claim, their suggestion the losses they caused did not exceed a mere $5,000 is preposterous. Accordingly, the Secretary’s application of this aggravating factor was supported by substantial evidence.
Second, the Appellants argue the same regulation, and another which establishes an aggravating factor based upon the duration of the excluded person’s criminal conduct, refer only to “acts” whereas the Appellants’ violations consisted solely of omissions. See 42 C.F.R. § 1001.201(b)(2)(i) (“The acts resulting in the conviction ... caused ... a financial loss”); id. at § 1001.201(b)(2)(ii) (“The acts that resulted in the conviction ... were committed over a period of one year or more”). The Secretary replies the “regulatory phrase ‘acts that resulted in the conviction’ is used to describe the wrongful conduct considered when setting an appropriate exclusion period.” As the Appellants point out, however, the regulations elsewhere distinguish between “acts” and “omissions,” see 42 C.F.R. § 1001.201(a)(l)(ii) (“With respect to any act or omission in a health care program .... ”). Still, nothing turns upon the distinction where it is made, and in light of the deference due the Secretary’s interpretation of her own regulation, see Auer v. Robbins, 519 U.S. 452, 461, 117 S.Ct. 905, 137 L.Ed.2d 79 (1997), we conclude her interpretation equating the two terms when only “acts” are proscribed is a permissible one.
Third, the Appellants argue the Secretary erred in failing to take into account their lack of “conscious wrongdoing.” The pertinent regulation establishes as a mitigating factor “that the individual has a mental, physical, or emotional condition [826]*826... that reduced the individual’s culpability.” 42 C.F.R. § 1001.201(b)(3)(ii). The Appellants argue their “lack of any awareness of wrongdoing” is one such “mental condition,” and the Secretary therefore erred in failing to give them credit for this mitigating factor. The regulation plainly refers to mental, physical, or emotional illness or disability, and the Appellants have not alleged they are afflicted by any such condition. Accordingly, the Secretary’s decision not to apply this mitigating factor is supported by substantial evidence.
Fourth, the Appellants argue the Secretary gave insufficient weight to their cooperation with law enforcement agencies, notwithstanding that she reduced the period of their exclusion by five years for this reason. Determining the precise weight to be given an aggravating or mitigating factor in setting the period of an exclusion is within the Secretary’s discretion, which the Appellants have not shown she abused.
2. Departure from precedent: Review under the arbitrary and capricious standard?
We turn finally to the Appellants’ only substantial objection: That the Secretary failed to justify the length of their exclusion in light of the agency’s prior decisions, as required by the Administrative Procedure Act. See Ramaprakash v. FAA, 346 F.3d 1121, 1125 (D.C.Cir.2003) (“An agency’s failure to come to grips with [its] conflicting precedent constitutes an inexcusable departure from the essential requirement of reasoned decision making” (internal quotation marks and citation omitted)).
The Secretary claims she was not required to do so because the APA is not applicable to the decision under review; as we explained in National Kidney Patients Association v. Sullivan, 958 F.2d 1127, 1130 (D.C.Cir.1992), “Section 405(h) [of 42 U.S.C.] ... makes [42 U.S.C.] § 405(g) the exclusive avenue for judicial review of administrative decisions,” and review under section 405(g), according to the Secretary, precludes application of the APA.
The APA provides a “Subsequent statute may not be held to supersede or modify [the APA] except to the extent that it does so expressly.” 5 U.S.C. § 559. The exclusion statute, including section 1320a-7(f)(1), postdates the APA but section 405(g) predates it; therefore it is not immediately clear whether the limitation in section 559 — -and therefore the APA — applies here. Regardless whether we look to section 1320a-7(f)(l) or to section 405(g), however, we agree with the Appellants that the statute authorizes review under the arbitrary and capricious standard.
Section 1320a~7(f)(l) does not expressly purport to supersede the APA and therefore does not preclude review under the arbitrary and capricious standard of the APA. The Secretary would instead have us focus upon section 405(g), which section 1320a-7(f)(l) incorporates by reference and which, because it predates the APA, need not “expressly” purport to supersede the APA in order to provide the exclusive standard for our review. Looking to section 405(g), however, we see the pertinent provision is virtually identical to the corresponding provision in the National Labor Relations Act. Compare 42 U.S.C. § 405(g) (“The findings of the Commissioner of Social Security as to any fact, if supported by substantial evidence, shall be conclusive”), with 29 U.S.C. § 160(e) (“The findings of the [National Labor Relations Board] with respect to questions of fact if supported by substantial evidence on the record considered as a whole shall be conclusive”). Neither statute expressly calls for any review [827]*827other than review of findings of fact for substantial evidence. The Supreme Court has nonetheless construed the NLRA to incorporate review under the arbitrary and capricious standard of the APA. Universal Camera Corp. v. NLRB, 340 U.S. 474, 487, 71 S.Ct. 456, 95 L.Ed. 456 (1951); Linden Lumber Div., Summer & Co. v. NLRB, 419 U.S. 301, 309-10, 95 S.Ct. 429, 42 L.Ed.2d 465 (1974); see also Diamond Walnut Growers, Inc. v. NLRB, 113 F.3d 1259, 1266 (D.C.Cir.1997) (en banc). Considering that section 405(g), like section 160(e) of the NLRA, is silent regarding the standard of review except with regard to questions of fact, we see no reason to depart from the path indicated by the Supreme Court. We therefore review the Secretary’s decision to exclude the Appellants according to the arbitrary and capricious standard, which requires that the Secretary provide a reasoned explanation for departing from agency precedent.
3. Applying the arbitrary and capricious standard of review
The Appellants may overstate their case by claiming their 12-year exclusion is “unprecedented”; the DAB cited a number of prior decisions in which it had excluded individuals for more than 10 years. The DAB’s mere citation of these cases, however, does not stand as a reasoned explanation if, as the Appellants argue, those cases are materially different. And so it seems they are: As the Appellants point out, every one of the cases cited by the DAB involved a mandatory exclusion with a presumptive baseline of five years, not a discretionary exclusion with a presumptive baseline of three years; in addition, every cited case involved either a felony conviction or a conviction for Medicare fraud for which the defendant was incarcerated, none of which factors is present in this ease.* In fact, none of the cases cited by the DAB even concerned an [828]*828exclusion under section 1320a — 7(b)(1); it appears the Secretary has never excluded anyone for more than ten years under that provision of the statute. Research reveals the longest period of exclusion the DAB had ever approved under section 1320a-7(b)(1) was four years. See Paulette White Jackson, DAB No.1915 (2004); Roberto Kutcher-Olivio, DAB No. 1837 (2002). When the DAB affirmed the Appellants’ 12-year exclusion the agency had never excluded anyone for more than ten years based upon a misdemeanor — a departure the agency does not even acknowledge, much less explain.
We do not suggest the Appellant’s exclusion for 12 years based upon a conviction for misdemeanor misbranding might not be justifiable; we express no opinion on that question. Our concern here is that the DAB did not justify it in the decision under review. Simply pointing to prior cases with the same bottom line but arising under a different law and involving materially different facts does not provide a reasoned explanation for the agency’s apparent departure from precedent. Therefore we hold the decision of the DAB was arbitrary and capricious with respect to the length of the Appellants’ exclusion.
III. Conclusion
For the reasons set out above, we hold section 1320a-7(b)(l) authorizes the exclusion of the Appellants on the basis of their convictions for misdemeanor misbranding. The Secretary’s decision, however, was arbitrary and capricious with respect to the length of their exclusion because it failed to explain its departure from the agency’s own precedents. The judgment of the district court is therefore reversed and the matter shall be remanded to the district court with instructions to remand it to the agency for further consideration consistent with this opinion.
So ordered.
Appendix
42 U.S.C. § 1320a — 7(b)(1)—(3)
(b) Permissive exclusion
The Secretary may exclude the following individuals and entities from participation in any Federal health care program (as defined in section 1320a-7b(f) of this title):
(1) Conviction relating to fraud
Any individual or entity that has been convicted for an offense which occurred after August 21, 1996, under Federal or State law—
(A) of a criminal offense consisting of a misdemeanor relating to fraud, theft, embezzlement, breach of fiduciary responsibility, or other financial misconduct—
(i) in connection with the delivery of a health care item or service, or
(ii) with respect to any act or omission in a health care program (other than those specifically described in subsection (a)(1) of this section) operated by or financed in whole or in part by any Federal, State, or local government agency; or
(B) of a criminal offense relating to fraud, theft, embezzlement, breach of fiduciary responsibility, or other financial misconduct with respect to any act or omission in a program (other than a health care program) operated by or financed in whole or in part by any Federal, State, or local government agency.
(2) Conviction relating to obstruction of an investigation or audit
Any individual or entity that has been convicted, under Federal or State law, in connection with the interference with or obstruction of any investigation or audit related to—
(i) any offense described in paragraph (1) or in subsection (a); or
[829]*829(ii) the use of funds received, directly or indirectly, from any Federal health care program (as defined in section 1320a-7b(f) of this title).
(3) Misdemeanor conviction relating to controlled substance
Any individual or entity that has been convicted, under Federal or State law, of a criminal offense consisting of a misdemeanor relating to the unlawful manufacture, distribution, prescription, or dispensing of a controlled substance.
Section 1320a-7(b)(l)(a) authorizes the Secretary to exclude any "individual ... [who] has been convicted ... of a criminal offense consisting of a misdemeanor relating to fraud, theft, embezzlement, breach of fiduciary responsibility, or other financial misconduct ... in connection with the delivery of a health care item or service.” Section 1320a-7(b)(3) authorizes the Secretary to exclude any "individual ... [who] has been convicted ... of a criminal offense consisting of a misdemeanor relating to the unlawful manufacture, distribution, prescription, or dispensing of a controlled substance.” The length of an exclusion predicated upon a conviction for a misdemeanor "shall be 3 years, unless the Secretary determines in accordance with published regulations that a shorter period is appropriate because of mitigating circumstances or that a longer period is appropriate because of aggravating circumstances." 42 U.S.C. § 1320a-7(c)(3)(D). 42 C.F.R. § 1001.2 provides "items and services furnished, ordered, or prescribed by [an excluded person] will not be reimbursed under Medicare, Medicaid and all other Federal health care programs until [that person] is reinstated by the OIG.”