Chun, Ouyang MD, Ph.D.Attending PhysicianGastroenterology Internal Medicine Education: Shanghai, Shanghai Jiaotong Univ. Sch of MedMain Office:925-813-3700 Kaiser Permanente 4501 Sand Creek Rd Antioch, CA 94531 Certification: Board Certified in Gastroenterology, Internal Medicine Additional Office: 3100 Dublin Blvd Dublin, CA 94568