The Centers for Medicare and Medicaid Services (CMS) has blocked or recovered more than $1.6 billion in potentially improper Medicare laboratory payments since President Donald Trump took office, including $732 million associated with 157 lab providers removed from the program for alleged fraud. The agency stated that these labs were suspected of billing Medicare for tests that were never performed, tests patients did not need, or services billed at incorrect, higher rates.
CMS Administrator Dr. Mehmet Oz stated that when laboratories bill Medicare for tests they did not perform, it depletes the Medicare Trust Fund and diverts resources from beneficiaries. He noted that the agency is employing artificial intelligence and other technologies to analyze Medicare claims and detect unusual billing patterns that may indicate fraud. This technology flags suspicious claims for further review, allowing CMS to hold, reject, or deny claims before Medicare disburses payment.
Of the $1.6 billion identified, over $500 million in suspected fraudulent payments were halted through 185 payment suspensions following investigations into 600 labs. The White House characterized the efforts as a shift from a previous administration that "treated our taxpayer-funded programs as piggy banks for fraudsters."
Additionally, the agency recovered more than $276 million in overpayments from 442 suspect labs. Another $127 million in potentially fraudulent payments was prevented after 85 cases were referred to law enforcement. The administration has emphasized a broader push to combat improper Medicare billing across various services, including medical equipment, hospice care, and skin treatments.
CMS highlighted two recent cases in Texas involving labs suspected of billing Medicare for services not rendered. In one instance, a lab began billing Medicare in late February, but CMS identified suspicious activity early and denied $1.2 million in claims. The lab subsequently altered its billing practices, which CMS also monitored, leading to the prevention of over $150,000 in additional payments before the provider was removed from Medicare. In a second Texas case, a lab that began extensive billing in May after submitting test claims earlier in the year had $1.9 million in claims denied and an additional $1.7 million in payments captured by CMS. This lab remains under review and could face removal from Medicare.
According to CMS, its Medicare fraud prevention efforts resulted in an estimated $42 billion in savings for fiscal year 2025. For fiscal year 2026, the agency reports identifying $1.8 billion in Medicare overpayments and recovering $378 million through post-payment reviews. Since the start of the year, CMS has also placed holds on over $371 million in Medicare payments involving 267 providers and suppliers, including significant amounts related to medical equipment, skin treatments, and hospice providers.
Dr. Oz expressed a commitment to restoring program integrity and preventing fraudsters from operating undetected within the system.