CMS announced on August 28, 2026 that its enforcement actions had stopped more than $1.6 billion in potentially improper Medicare laboratory payments. CMS said the effort included revoking 157 fraudulent lab providers, suspending payments, identifying overpayments and referring cases for law-enforcement review.

Why this matters to people with Medicare

Fraud is not only a government accounting problem. Claims submitted using a beneficiary’s Medicare information can create confusion in medical records, make it harder to understand what services were actually received, and consume Medicare resources that should be available for legitimate care.

CMS specifically described suspicious laboratory billing patterns such as tests billed for people who had no established relationship with the ordering provider, services that were never performed, and services billed at a higher level than what was actually provided.

A useful habit: Review Medicare claims just as you would review a bank or credit-card statement. An unfamiliar charge deserves a closer look.

Five simple steps to protect yourself

  1. Keep track of your appointments and tests. A calendar makes it easier to compare what you actually received with later claims.
  2. Review your Medicare Summary Notice or plan statements. Look for providers, laboratories, tests or dates you do not recognize.
  3. Ask questions before assuming fraud. Sometimes a laboratory or billing company name is different from the doctor’s office you visited. Contact the provider if a charge may be legitimate but is unfamiliar.
  4. Protect your Medicare Number. Give it only to trusted health care providers, insurers or people legitimately helping with your coverage.
  5. Report suspicious activity. Medicare says suspected fraud can be reported at 1-800-MEDICARE (1-800-633-4227)1-800-MEDICARE (1-800-633-4227) or through Medicare.gov.

What Medicare Advisors can help with

We do not investigate fraud, but we can help clients understand where to find plan information, claims resources and the correct Medicare contacts when something does not look right. A good coverage review also includes understanding how your plan works and which organization should be contacted when questions arise.

Educational information only. This article summarizes public CMS information and is not a complete description of Medicare benefits or any specific insurance plan. Eligibility, benefits, provider networks, formularies and costs vary. Proposed rules may change before they become final.