Patient Portal. Existing Users Log In Username or Email. Password Remember Me . ... Port Huron Medical Center 1209 Tenth Street Port Huron, MI 48060 (810) 985-8170. Greater Yale Medical Clinic 7685 Brockway Rd. Yale, MI 48097 (810) 387-3205. Business Hours. Weeks Timings; Monday Wednesday Friday: 8:00 AM - 5:00 PM: Tuesday.