By American CME / July 25, 2023 Home > Macomb County MCA / Medstar / Medstar Central / Oakland County MCA > Medstar – Central Central Operations: Macomb, Oakland, DEMCA, and HEMS ✪ Providers enroll using the signup form at the link below. If you already have an americancme.org account, log in before enrolling. Username Password Remember Me Forgot Password >>Providers Enroll Here<< Login