Dr. Sun is a licensed Internal Medicine in MA. Graduated in 1988. Medical degree obtained from Sichuan, West China School of Medicine in China. Completed residency training at Mt. Sinai Hospital(NY). Currently practices at Chelmsford Primary Care (Chelmsford Primary Care), located at 2 Meeting House Rd, Chelmsford, MA 01824. Dr. Sun specializes in Adult medicine, OB/GYN, Hyperbaric Medicine, Advanced would care.. In addition to English, Dr. Sun speaks Mandarin and accepts new patients.