Ascension Medical Group, Medical Commons II. Address: 1555 E. Chicago Rd. Sturgis, MI 49091. Telephone: (269) 651-3218. Board Certified: Family Medicine. Specialties: Family Practice, General Surgery, Obstetrics/Gynecology Practice:Ascension Medical Group. Certifications: Royal College of Surgeons American Society of Abdominal Surgeons.