Dr. Mary C. Chang, DO is a trusted healthcare provider located at 600 Primrose Street in Haverhill, Massachusetts. Specializing in osteopathic medicine, Dr. Chang offers comprehensive medical care to patients of all ages. With a focus on preventive care and holistic healing, Dr. Chang is dedicated to promoting the overall well-being of her patients. Whether you are in need of a routine check-up or treatment for a specific health concern, Dr. Mary C. Chang, DO is committed to providing personalized and compassionate care to help you achieve optimal health.