Dr. Siu is a licensed Internal Medicine in NY. Graduated in 1991. Medical degree obtained from New York University School of Medicine. Completed residency training at Bellevue Hospital Center-Master. Currently practices at NYC Health + Hospitals (NYC Health + Hospitals), located at 227 Madison St, New York, NY 10002. Dr. Siu specializes in internal medicine, primary care.. In addition to English, Dr. Siu speaks Cantonese.