The Inspector General for the Dept. of Health and Human Services has created a page on its website that collects information about state Medicaid Fraud Control Units (MFCUs).
State MFCUs investigate and prosecute fraud by Medicaid providers as well as patient abuse and neglect in “board and care” facilities that do not receive Medicaid funding. In certain circumstances they may also investigate program fraud involving Medicare or other Federal programs.
The OIG page provides links to a directory of MFCU contacts, annual reports, and state enforcement actions, as well as regulatory and policy information.