Dr. Chan is a licensed Gastroenterology in CA. Medical degree obtained from Icahn School of Medicine at Mount Sinai. Completed residency training at Cedars-Sinai Medical Center and fellowship training at Cedars-Sinai Medical Center. Currently practices at Digestive and Liver Diseases Dr. Simon Chan (Digestive and Liver Diseases Dr. Simon Chan), located at 227 W. Valley Blvd, San Gabriel, CA 91776. Dr. Chan specializes in treat digestive disorders, such as stomach pain, ulcers, reflux, constipation and Crohn's disease.. In addition to English, Dr. Chan speaks Mandarin and Cantonese.