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Reporting fraud

Understanding the Role of the Department of Justice in Medicare Fraud Whistleblower Cases

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When a private citizen files a Medicare fraud whistleblower lawsuit, the case does not proceed like an ordinary civil suit. Because the federal government is the party that paid the fraudulent claims, the Department of Justice (DOJ) plays a central role in deciding how the case moves forward. Understanding that role can help patients, families, and healthcare workers know what to expect after a complaint is filed.

Reviewing the Complaint Under Seal

Under the federal False Claims Act (31 U.S.C. 3729-3733), a private whistleblower, known as a relator, may file a qui tam lawsuit on the government's behalf. The complaint is filed under seal, meaning it is kept confidential for a period of time. During this sealed period, the DOJ investigates the allegations. The government reviews medical records, billing data, and other evidence to determine whether the claims have merit and whether the alleged conduct amounts to fraud under federal law.

The Decision to Intervene

The most significant decision the DOJ makes is whether to "intervene," or formally join the lawsuit. If the DOJ intervenes, its attorneys take over the primary responsibility for litigating the case against the accused party. The government may also choose to decline intervention, in which case the whistleblower and their own legal counsel may continue the case independently. Even when the DOJ declines to intervene, it still has an interest in the outcome, and the government may later join the case if circumstances change.

The intervention decision affects the whistleblower's potential share of any recovery. If the government intervenes, the relator generally receives between 15 and 25 percent of the amount recovered. If the government does not intervene and the relator pursues the case successfully, the share is generally between 25 and 30 percent.

Litigation and Settlement

When the DOJ intervenes, it works alongside the relator's legal team to pursue the case. The government may litigate the matter in court, or it may negotiate a settlement with the accused party. Because the DOJ represents the public interest, it evaluates settlement offers carefully, weighing the strength of the evidence, the costs of continued litigation, and the need to deter future fraud. Any settlement must be approved by the court.

Liable parties can owe up to three times the government's damages, plus per-claim civil penalties that are adjusted for inflation each year. These financial consequences are designed to punish wrongdoing and recover taxpayer funds that were paid out improperly.

Coordination with Other Agencies

The DOJ does not work alone. It coordinates closely with the U.S. Attorney's Offices across the country, as well as with the Department of Health and Human Services Office of Inspector General (HHS-OIG) and the Centers for Medicare & Medicaid Services (CMS). These agencies provide investigative support, data analysis, and subject-matter expertise that help the DOJ assess whether a case is worth pursuing.

Deadlines and Protections for Whistleblowers

Whistleblowers should be aware of time limits. The general deadline for filing a False Claims Act case is six years from the date of the violation, or three years from when the government knew or should have known about the violation, but in no case more than ten years. Acting promptly is important.

The law also protects whistleblowers from retaliation. Under 31 U.S.C. 3730(h), employees who face adverse action for reporting fraud may seek remedies such as reinstatement and double back pay. This protection applies regardless of whether the government ultimately intervenes in the case.

How to Report Suspected Fraud

Individuals who suspect Medicare fraud do not need to file a lawsuit to report it. Tips can be submitted to the HHS-OIG hotline at 1-800-HHS-TIPS (1-800-447-8477). Medicare beneficiaries who believe they have been billed improperly can call 1-800-MEDICARE. Reporting concerns early can help the government identify patterns of fraud and protect the integrity of the Medicare program.

Legal reviewer

Brad Freedberg

Attorney, Brad Freedberg Attorney at Law, 730 17th Street, Suite 900, Denver, CO 80202. Licensed in Colorado since 1995, Atty. Reg. #26046. Reviewed October 19, 2026.

General information, not legal advice. Reading this page does not create an attorney-client relationship. False Claims Act deadlines are strict; talk to a licensed attorney before filing.