Dr. John J. O'Brien, MD is a Internal Medicine Physician - Gastroenterology practicing in Livonia, MI
He has not yet shared a personalized biography with Doctor.com.
Years In Practice: 40 (started in 1985)
Accepts New Patients: Yes
Dr. John J. O'Brien, MD has not yet listed the medications that he commonly prescribes.
Dr. John J. O'Brien, MD has not yet specified the insurance plans he accepts.