Dr. Cao is a Internal Medicine physician in training in MA. Graduated in 2018. Medical degree obtained from Beijing, Peking Union Medical College in China. Completed residency training at Mass General Brigham. Currently practices at Mass General Brigham (Mass General Brigham), located at 81 Highland Ave, Salem, MA 01970. Dr. Cao specializes in internal medicine, primary care.. In addition to English, Dr. Cao speaks Mandarin.