Contact Us Our Locations St. Clair Medical, PC has continually grown and developed new locations to better serve you and reduce wait times. St. Clair Medical Center 3436 South River RoadEast China, MI 48054(810) 329-7000 Mitchell Medical Center 1209 Tenth StreetPort Huron, MI 48060(810) 985-8170 Port Huron Medical Center & Diagnostic Testing Center 1209 Tenth StreetPort Huron, MI 48060(810) 985-8170