Dr. Chang is a licensed Family Medicine in ON. Graduated in 2007. Medical degree obtained from University of Toronto Faculty of Medicine. Completed residency training at University of Toronto. Currently practices at Dr. Annisa Chang and Dr. Christopher Tan (Dr. Annisa Chang and Dr. Christopher Tan), located at 7130 Warden Ave, Markham , ON L3R 1S2. Dr. Chang specializes in family medicine and primary care.. In addition to English, Dr. Chang speaks Mandarin.