A pharmacy or medical practice that discovers it was overpaid by Medicare or Medicaid takes on a legal duty separate from whatever claim generated the overpayment. Under the reverse false claims provision of the False Claims Act, 31 U.S.C. 3729(a)(1)(G), knowingly concealing or improperly avoiding an obligation to pay the government, including an obligation created by retaining an overpayment, is itself an act of fraud. The 60-day rule under 42 U.S.C. 1320a-7k(d) sets the deadline: once an overpayment is identified, the provider has 60 days to report and return it, or the retained payment becomes a false claim in its own right. No original false claim is required. Holding money the provider knows it is not entitled to, past the deadline, can carry treble damages and per-claim penalties under the Act.
The Reverse False Claims Provision
The False Claims Act imposes liability not only for submitting a false claim but also for avoiding a duty to pay money back. Section 3729(a)(1)(G), the reverse false claims provision, reaches anyone who knowingly conceals or improperly avoids an obligation to pay or transmit money to the government. The Act defines obligation broadly under 31 U.S.C. 3729(b)(3) to include a duty arising from statute, regulation, or contract, or, critically, from the retention of any overpayment. That clause is the direct statutory link between an ordinary billing overpayment and False Claims Act exposure. Once a provider has received an overpayment, retaining that money is itself the obligation the statute protects.
The 60-Day Rule and the Duty to Return an Overpayment
The 60-day rule, codified at 42 U.S.C. 1320a-7k(d), requires a person who has received a Medicare or Medicaid overpayment to report and return it by the later of 60 days after the overpayment was identified, or the date a corresponding cost report is due. CMS's final rule implementing the statute, effective March 14, 2016, defines identified to mean the provider has, or should have through reasonable diligence, determined the overpayment exists and quantified the amount, including a timely, good-faith investigation once credible information surfaces. The final rule also fixed the lookback period at six years, so the reporting duty reaches overpayments identified within six years of receipt.
An overpayment does not have to be repaid the moment it is discovered. It has to be repaid within 60 days of the point a provider has, or should have through reasonable diligence, identified and quantified it, and missing that window can convert an ordinary billing error into a False Claims Act violation.
What Conduct Triggers FCA Exposure
The 2015 Southern District of New York decision in Kane v. Continuum Health Partners was the first federal ruling to interpret identified under the 60-day rule, and it set the standard providers still work under. The government alleged that Continuum Health Partners and two of its hospitals learned in 2011 that a billing software error had generated more than 900 potentially overpaid Medicaid claims, but did not finish repaying them until 2013. The court held that a provider is on notice once it has credible information that a claim may have been overpaid, not only once the exact dollar figure is confirmed. The government and the State of New York later settled the case for $2.95 million. Exposure can arise from a government or contractor audit, or emerge over the course of a qui tam suit brought by a whistleblower, and a resulting settlement can also carry a corporate integrity agreement or place the provider at risk of OIG exclusion from federal healthcare programs.
Why Early Legal Counsel Is Critical
It is critical that compliance officers promptly retain experienced healthcare defense counsel once an internal audit, a payer notice, or a billing system finding raises credible information that a Medicare or Medicaid overpayment may exist. Early legal intervention can protect the provider's rights during the reasonable diligence investigation, help ensure the report and return is handled correctly, avoid inadvertent admissions that could support a later reverse false claims allegation, and allow counsel to communicate with CMS, the state Medicaid program, or investigators on the provider's behalf. Delaying legal involvement until after the 60-day window has closed can significantly affect the outcome and expose the provider to liability a timely, well-documented response could have avoided.
How Health Law Alliance Can Help
Health Law Alliance defends providers and pharmacies nationwide against False Claims Act allegations, including reverse false claims theories built on retained Medicare and Medicaid overpayments. The firm's bench includes a former federal prosecutor, a background that shapes how a reasonable diligence investigation and a 60-day rule report and return are documented from the outset. If your compliance program has identified a potential overpayment, or the government has already raised the issue, contact us today for a free consultation.





