Dr. Chan is a licensed Family Medicine in ON. Graduated in 1992. Medical degree obtained from University of Toronto Faculty of Medicine. Completed residency training at University of Toronto. Currently practices at William M.K. Chan MD (William M.K. Chan MD), located at 50 Lockridge Ave, Markham, ON L3R 8X4. Dr. Chan specializes in family medicine and primary care.. In addition to English, Dr. Chan speaks Mandarin and Cantonese.