Health Care Overpayments: When the Money Stays After the Error Is Found

The False Claims Act 60 day overpayment rule requires recipients to report and return Medicare and Medicaid overpayments by the later of 60 days after identification or the due date of a corresponding cost report, where applicable. Knowingly and improperly keeping that money past the deadline supports a whistleblower case. If your work uncovered the overpayment, the decision that followed can matter as much as the billing that produced it. Who learned about the problem, and why did the money stay?

What Makes an Overpayment a Reverse False Claim?

A reverse false claim concerns money owed back to the government. An overpayment is Medicare or Medicaid money a provider or plan was paid but was not entitled to keep after the applicable payment adjustments. The Affordable Care Act’s repayment requirement turns an overpayment kept past the deadline into money owed under the False Claims Act.

The Congressional Research Service explained the direction of the fraud in its 2009 report:

The report describes how Congress broadened the False Claims Act to reach knowing concealment or improper avoidance of an obligation without requiring a new bill or a false record. That matters inside a healthcare business. The original payment can have arrived through an innocent mistake, while the later decision to keep it raises a separate question about what the organization knew and did.

The repayment question therefore reaches beyond the person who submitted the claim. A consultant can identify the overpayment. Finance can know that the money remains. Management can know both. The Oglethorpe allegations below show why those connections belong in the same account.

What Changed on January 1, 2025?

For Medicare Parts A and B, the Centers for Medicare & Medicaid Services replaced reasonable diligence with the False Claims Act’s knowledge standard: actual knowledge, deliberate ignorance or reckless disregard. Under the rule effective January 1, 2025, identification turns on knowing receipt or retention of an overpayment, even before the provider finishes calculating its amount.

The agency’s February 2016 explanation tied identification to finding the overpayment through reasonable diligence and calculating its amount.

For an insider, the distinction is concrete: knowing that money was overpaid and finishing the calculation of how much are different events. The dates and internal communications around each can tell different parts of the story.

Knowledge also reaches a deliberate decision to avoid finding out. We examine what information reached the business and how the people responsible responded to it. An unfinished calculation does not, by itself, answer that question.

Does the Investigation Period Suspend the Repayment Deadline?

Yes, conditionally, under the Medicare Parts A and B rule. A timely, good-faith investigation of related overpayments can suspend the deadline. The suspension ends when the investigation and calculation finish or 180 days after the initial identification, whichever comes first.

If management calls a stalled review an investigation while keeping the money, that is a reason to speak with our whistleblower experts.

Which Medicare or Medicaid Payment Is Involved?

The payment system determines what the overpayment looks like. A hospital claim, an outpatient service bill and a Medicare Advantage diagnosis submission can each affect government money through a different route.

Medicare Parts A and B

Traditional Medicare pays providers for care. The D.C. Circuit’s explanation of the payment systems describes hospital payments linked to diagnoses at discharge and Part B payments tied to services under fee schedules. The clinical record, the billed service and the payment calculation supply different pieces of the same transaction.

Cost-report timing belongs here too. The statutory deadline expressly includes the due date of a corresponding cost report when applicable.

Medicare Advantage and Part D

Medicare Advantage insurers receive monthly payments for enrolled beneficiaries, adjusted for characteristics that include diagnoses. An unsupported diagnosis can therefore increase the payment even though it does not look like a separate bill for a service. The medical record supplies the comparison: does it support the diagnosis used to obtain the money?

The Centers for Medicare & Medicaid Services adopted separate overpayment regulations for Medicare Advantage and Part D in 2014, before its Parts A and B rule in 2016. Medicare Advantage organizations and prescription drug plan sponsors are among the recipients covered by the statutory repayment obligation. The investigation provision discussed above belongs to the Parts A and B rule. We examine a plan payment under the rules governing that plan.

Medicaid

Medicaid overpayments also fall within the statutory report-and-return requirement, which expressly includes Medicaid managed care organizations among the covered recipients. We work through that program connection with you alongside what the business discovered and what it kept.

Why Did UnitedHealthcare’s Repayment Challenge Fail?

The D.C. Circuit rejected UnitedHealthcare’s argument that disputes over Medicare’s payment model excused the return of known overpayments. Its August 2021 decision separated the method CMS uses to set payments from an insurer’s obligation to return money tied to diagnoses it knows lack medical-record support.

UnitedHealthcare argued that CMS needed to account for errors in traditional Medicare data used to set Medicare Advantage payments. The court rejected using that argument to block recovery of individual, known overpayments. We see the practical point: a dispute about the payment model does not give an unsupported diagnosis medical support.

The court reversed the lower court on the payment-model issue. The lower court’s separate rejection of an identification standard based on what an insurer should have discovered stayed in place.

Cases Where Discovery and Retention Came Together

The Government Alleged Oglethorpe’s Own Consultants Identified the Money

Oglethorpe, a psychiatric hospital operator, and its founder, chief executive and chief operating officer agreed to pay $32 million in May 2026 to resolve allegations of knowingly failing to return Medicare overpayments. The Justice Department alleged that the company’s own consultants had identified the overpayments.

The payments concerned admissions to Ridgeview Behavioral Hospital, Georgetown Behavioral Hospital and The Woods at Parkside. According to the department, the beneficiaries did not qualify for inpatient psychiatric care. The alleged failure to return the money began in 2021 and continued through the settlement announcement. In that first year, Oglethorpe had entered a Corporate Integrity Agreement with the Department of Health and Human Services Office of Inspector General following an earlier False Claims Act settlement.

A registered nurse and former finance and operations executives brought the whistleblower case. Their roles put patient care, payment and management in the same story.

We see the absurdity in the government’s allegation: the company’s own consultants identified money it owed, and the company still kept it. According to that account, discovery had done its job. Repayment had not.

Sutter’s Diagnosis Codes and the Money They Produced

Sutter Health’s August 2021 settlement of $90 million addressed allegations involving unsupported Medicare Advantage diagnoses. The government’s complaint joined the payment submission and the later retention in one description:

The complaint alleged that the drive to increase diagnosis codes originated with executives and raised payments to the Medicare Advantage organizations and then to Sutter. That connects the medical record to the money arriving inside the provider. The alleged retention is a second part of the conduct, after the diagnosis has already done its financial work.

These cases put the insider’s knowledge in focus. The clinical record can show why the payment was unsupported. A consultant’s findings can show what the business learned. The payment records and decisions after discovery show what happened to the money. We build the account around those connections.

Can a Whistleblower Share in the Recovery?

A whistleblower case under the False Claims Act can pay 15% to 30% of what the government recovers. The people who understand the clinical, billing or financial records can help connect an overpayment to the decision to keep it. We work through your questions about bringing a whistleblower case with you, including the hard ones.

When the Findings Reached Management

If you know what the review found and why the overpayments stayed in the business, speak with our whistleblower experts about the unreturned money. We connect the clinical findings, payment records and management decisions to build your health care overpayment case, bringing in healthcare fraud whistleblower lawyers who understand repayment disputes. We stay beside you from that first account through the case.