Welcome to the website of the Thumb Alliance Prepaid Inpatient Health Plan (PIHP), your link to public services for mental health and substance use disorders in Lapeer, St. Clair, and Sanilac counties. The Thumb Alliance PIHP manages the Medicaid mental health plan and three other benefit plans for the Community Mental Health (CMH) agencies in the three counties. The PIHP is also the Coordinating Agency (CA) for public services for substance use disorders in the three counties.
Selecting a link on the left will take you into the PIHP website.
If you want to visit one of our CMH websites, click on one of the county maps below.
