Dr. Maria Chang is a Gastroenterologist and Internal Medicine in Oklahoma City 73109, OKLAHOMA CITY and has an experience of 31 years in these fields. Dr. Maria Chang practices at Integris Southwest Medical Center in Oklahoma City 73109, OKLAHOMA CITY and Digestive Disease Specialists in Oklahoma City 73109, OKLAHOMA CITY. She completed Medical School from University of the East/Ramon Magsaysay Memorial Medical Center College of Medicine in 1990. Some of the services provided by the doctor are: Benign Chronic Pain Syndrome,Radiculopathy Treatment,Congenital Achalasia,Hepatitis a Screening and Biopsies etc.