Anonymous hotlines
Many state Medicaid fraud control units accept anonymous tips by phone or web form. HHS-OIG also allows complaints without requiring your name, though investigators may have fewer ways to follow up.
Tradeoffs
Anonymous tips can start an investigation but rarely lead to relator rewards under the False Claims Act, which requires an identified relator and attorney. If you want a potential financial share, you will eventually need to work with counsel and file a sealed case.
Protecting identity before you decide
Even before hiring a lawyer, avoid employer systems when researching options. Initial attorney consultations are confidential. Whistleblower retaliation laws may apply once you engage in protected activity.
State-specific paths
Medicaid is administered partly by states. Your state attorney general or inspector general may have a dedicated fraud unit. Search for your state's Medicaid fraud reporting page for local phone numbers.