The False Claims Act is a federal law that makes it illegal to submit false or fraudulent billing claims to government healthcare programs like Medicare and Medicaid. It is the government’s primary tool for fighting healthcare fraud, and it recovered over $5.7 billion from the healthcare industry in fiscal year 2025 alone. The law covers not just intentional fraud but also claims submitted with reckless disregard for their accuracy.
How the Law Defines a “False Claim”
A false claim is any request for payment sent to a government program for a service that was not provided as described, was not medically necessary, or was billed at the wrong amount. The law casts a wide net. You don’t have to intend to commit fraud to be liable. The standard includes three levels: actual knowledge that a claim is false, “deliberate ignorance” of the truth, or “reckless disregard” for whether the information is accurate. In practice, this means a provider who submits inaccurate claims without bothering to verify them can face the same liability as one who knowingly cheats the system.
A key legal concept is materiality. After a landmark Supreme Court ruling in the case known as Escobar, what matters is whether the false information would have influenced the government’s decision to pay. It doesn’t matter whether a violated rule was formally labeled a “condition of payment.” If the government wouldn’t have paid the claim had it known the truth, the claim is material, and the provider is on the hook.
Common Healthcare Violations
The most frequent type of fraud pursued under this law is upcoding, where a provider submits billing codes for more expensive diagnoses or procedures than what actually occurred. A patient comes in with a cough and fever, for example, and the provider codes it as pneumonia to get a higher reimbursement. A ProPublica analysis found that more than 1,250 providers billed Medicare using the highest-level office visit code for every single patient encounter in 2015, a pattern that strongly suggests inflated billing rather than genuinely complex visits.
Other common violations include:
- Unbundling: Billing separately for services that were performed together to inflate the total charge. Duke University settled for $1 million over unbundled cardiac and anesthesia services.
- Billing for services not rendered: A psychiatrist billing insurance for 30- to 60-minute sessions that actually lasted 15 minutes.
- Medically unnecessary procedures: Ordering tests or treatments a patient doesn’t need because the program will pay for them. One Florida cardiology case involved a physician performing tests he knew were unnecessary simply because Medicare reimbursed them at higher rates.
- Misrepresenting patient status: Coding established patients as new patients to collect higher evaluation fees.
The scale can be enormous. Tenet Healthcare Corporation faced $900 million in fraudulent charges in 2006 for systematically assigning incorrect diagnosis codes to increase reimbursement from Medicare and Medicaid. One study estimated that upcoding of hospital-acquired infections alone cost Medicare $200 million.
Financial Penalties
Penalties under the False Claims Act go well beyond simply paying back what was overbilled. Violators owe three times the government’s damages (known as treble damages), plus a civil penalty for each individual false claim. As of 2025, that per-claim penalty ranges from $14,308 to $28,619. For a provider who submitted hundreds or thousands of false claims over several years, the total can reach tens of millions of dollars even before the treble damages are calculated.
Beyond the financial hit, providers found liable can be excluded from all federal healthcare programs. Exclusion means a provider cannot bill Medicare, Medicaid, or any other federally funded health program. For most healthcare professionals, this effectively ends their career. There is also a criminal version of the law that can result in prosecution and prison time in the most egregious cases.
Whistleblower Provisions
One of the most distinctive features of the False Claims Act is the qui tam provision, which allows private citizens to file lawsuits on the government’s behalf. The person who files, called the relator, is typically a current or former employee who witnessed the fraud firsthand. If the case succeeds, the whistleblower receives between 15% and 30% of the total recovery. On a multimillion-dollar settlement, that can be a life-changing sum.
The percentage depends partly on how involved the government becomes. When the Department of Justice steps in and takes over the case, the whistleblower’s share tends toward the lower end of that range. When the government declines to intervene and the whistleblower pursues the case independently, the share moves toward the higher end to compensate for the added risk and effort.
Whistleblowers also have strong legal protections against retaliation. If an employer fires, demotes, suspends, threatens, or harasses someone for reporting fraud, the law entitles that person to reinstatement at their previous seniority level, double back pay with interest, and compensation for litigation costs and attorneys’ fees. These protections apply to employees, contractors, and agents alike.
How It Connects to Other Fraud Laws
The False Claims Act doesn’t operate in isolation. Two other major healthcare fraud statutes frequently trigger liability under it. The Anti-Kickback Statute prohibits offering or receiving anything of value in exchange for patient referrals that will be billed to federal programs. The Stark Law prohibits physicians from referring patients to entities where they have a financial relationship for certain designated services. When a provider violates either of these laws and then submits claims to Medicare or Medicaid, each of those claims can become a separate false claim, multiplying the liability dramatically.
The Anti-Kickback Statute does have safe harbor regulations that protect certain payment arrangements and business practices from being treated as violations. These safe harbors cover specific, well-defined scenarios. But there is no broad safe harbor under the False Claims Act itself. If the underlying conduct taints a claim for government payment, the exposure is real regardless of how the arrangement was structured.
The Scale of Enforcement
Healthcare fraud is the single largest category of False Claims Act enforcement. In fiscal year 2025, the Department of Justice reported over $6.8 billion in total settlements and judgments under the law, and $5.7 billion of that came from the healthcare industry. The majority of these cases originated from whistleblower filings rather than government-initiated investigations, which underscores how central the qui tam mechanism is to the law’s effectiveness.
Cases target every level of the industry, from individual physicians and small clinics to major hospital systems, pharmaceutical companies, and medical device manufacturers. Drug companies have faced some of the largest settlements, often for promoting medications for uses not approved by the FDA and then billing government programs for those off-label prescriptions. Hospital systems have been penalized for systemic billing patterns that inflate reimbursements across thousands of patient encounters.