Dr. Chao is a licensed Internal Medicine in NY. Graduated in 2003. Medical degree obtained from SUNY Downstate College of Medicine. Completed residency training at Northwell Health. Currently practices at Mather Hospital (Mather Hospital), located at 75 North Country Rd, Port Jefferson, NY 11777. Dr. Chao specializes in hospital medicine(inpatient services).. In addition to English, Dr. Chao speaks Mandarin and accepts new patients.