Dr. John Gregory Terpstra, DO

Dr. John Terpstra brings 27 years of experience to his practice in family medicine and emergency medicine. He earned his medical degree from Des Moines University College of Osteopathic Medicine, where he developed expertise in osteopathic care that emphasizes treating the whole person. His dual specialties allow him to provide both ongoing primary care for families and urgent medical treatment when emergencies arise. Dr. Terpstra is fluent in both Spanish and English, helping him communicate effectively with diverse patient populations.

Dr. Terpstra practices at multiple locations throughout Ohio, including Saint Marys, Lima, Sidney, and Celina, with his primary affiliation being Mercer Health. He treats conditions such as chest wall pain and altered consciousness levels. His emergency medicine training enables him to perform procedures like CT scans and chest X-rays when patients need immediate diagnostic imaging. Patients have given him an average rating of 3.9 out of 5 on Vitals, …reflecting his commitment to providing comprehensive care across both family practice and emergency settings.