Kenneth J, Chang M.D.Attending and Clinical Assistant ProfessorGastroenterology Internal Medicine Education: Brown University Medical SchoolMain Office:949-764-5760 Hoag Medical Group 500 Superior Ave #100 Newport Beach, CA 92663 Clinic Intersts:barrett's esophagus, interventional endoscopy, endoscopic ultrasound (eus), gastroesophageal reflux disease (gerd), gastrointestinal oncology: pancreatic & esophageal cancer.Certification:Board Certified in Gastroenterology, Internal Medicine