Dr. Zhang is a licensed Internal Medicine in NY. Graduated in 1984. Medical degree obtained from Guangdong, Guangzhou Medical University in China. Completed residency training at NYU Medical Center. Currently practices at Catholic Health (Catholic Health), located at 2500 Nesconset Highway, Stony Brook, NY 11790. Dr. Zhang specializes in Diabetes, Hypertension, Hyperlipidemia, Hypercholesterolemia, Heart Disease, Hypothyroidism & hyperthyroidism, Kidney Disease, Pink eye & eye infection..... In addition to English, Dr. Zhang speaks Mandarin and Cantonese and accepts new patients.