Who we are. Community Mental Health Authority of Clinton, Eaton, and Ingham Counties (CMHA-CEI) is a public agency serving people in Clinton, Eaton, and Ingham Counties. As a Certified Community Behavioral Health Clinic (CCBHC) Expansion Grantee, CMHA-CEI provides a comprehensive set of services used to increase access to care, support people in crisis, and provide treatment for those with the ....