When a private citizen files a Medicare fraud whistleblower lawsuit, the case does not proceed like an ordinary civil dispute. Because the federal False Claims Act (31 U.S.C. 3729-3733) allows a private person, known as a relator, to sue on the government's behalf, the U.S. Attorney's Office plays a central role in deciding what happens next. Understanding that role can help patients, families, and healthcare workers know what to expect after a complaint is filed.
What the U.S. Attorney's Office Does First
A qui tam complaint is filed under seal, meaning it is not made public while the government reviews it. During this period, the U.S. Attorney's Office for the district where the case is filed investigates the allegations. This typically involves reviewing documents, interviewing witnesses, and coordinating with agencies such as the Department of Justice (DOJ), the Department of Health and Human Services Office of Inspector General (HHS-OIG), and the Centers for Medicare & Medicaid Services (CMS). The investigation can take months or even years, and the relator's identity and the details of the case generally remain confidential during this time.
The Decision to Intervene
After the investigation, the government makes a key decision. If the U.S. Attorney's Office believes the case has merit, it may "intervene," meaning the government takes over the primary responsibility for litigating the case. If the government declines to intervene, the relator may choose to pursue the case privately, though the government still has an interest in the outcome.
The intervention decision matters for the whistleblower's potential award. Under the False Claims Act, a relator generally receives 15 to 25 percent of the recovery if the government intervenes, and 25 to 30 percent if it does not. The government's involvement also affects how the case is negotiated and settled, since the U.S. Attorney's Office has authority to settle claims on behalf of the United States.
What the Government Can Recover
When a Medicare fraud case succeeds, the government can recover significant amounts. 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 recoveries are designed to deter fraud and return taxpayer money to the Medicare Trust Funds.
Timing and Deadlines
Whistleblowers should be aware of the deadlines that apply to qui tam cases. The general deadline is six years from the violation, or three years from when the government knew or should have known about it, but in no case more than ten years. Acting promptly is important, because delays can affect whether a claim is timely.
Protection for Whistleblowers
Employees who report Medicare fraud are protected from retaliation. Under 31 U.S.C. 3730(h), an employee who faces adverse action for assisting in a False Claims Act case may seek remedies such as reinstatement and double back pay. This protection applies regardless of whether the government ultimately intervenes.
How to Report Medicare Fraud
Filing a qui tam lawsuit is a serious legal step that is typically done through an attorney, but anyone can report suspected fraud directly to the government. Tips can be submitted to the HHS-OIG hotline at 1-800-HHS-TIPS (1-800-447-8477). Medicare beneficiaries who suspect fraud, waste, or abuse can also call 1-800-MEDICARE. These channels allow patients, families, and healthcare workers to bring concerns to the attention of investigators without filing a lawsuit.
The U.S. Attorney's Office serves as the government's gatekeeper in Medicare fraud whistleblower cases. Its investigation and intervention decisions shape the course of the litigation and the potential recovery. For anyone considering reporting fraud, understanding this role is a useful first step in navigating the process.



