Chang, Kenneth J, M.D.
Gastroenterology
UC Irvine Health,
101 The City Drive South,
Orange CA 92868
Phone: 714-456-8063,
Barrett's esophagus, interventional endoscopy, endoscopic ultrasound (EUS), gastroesophageal reflux disease (GERD), gastrointestinal oncology: pancreatic & esophageal cancer.