MPI investigates allegations of fraud, waste, and abuse committed by Medicaid providers. Some referrals come through the IG Integrity Line or complaints from the Inspector General’s online Waste, Abuse and Fraud Electronic Referral System. Referrals are also received from the 23 managed care organizations (MCOs) throughout the state.

MPI makes referrals to the Attorney General's Medicaid Fraud Control Unit (AG-MFCU) when there are indicators of criminal Medicaid fraud. MPI and AG-MFCU work together on joint investigations by sharing resources and information that will lead to successful administrative or criminal prosecution.

Provider recoveries accounted for 67 percent of the funds IG recovered in fiscal year 2017.