Dr. Chang is a licensed Endocrinology in MA. Medical degree obtained from Boston University School of Medicine. Completed residency training at Boston Medical Center and fellowship training at Boston Medical Center. Currently practices at Emerson Health (Emerson Health), located at 133 Old Road to Nine Acre Corner, Concord, MA 01742. Dr. Chang specializes in diabetes, osteoporosis/bone disorders, as well as pituitary, gonadal and adrenal disorders.. In addition to English, Dr. Chang speaks Mandarin.