Dr. Chang is a licensed Family Medicine in OR. Graduated in 1984. Medical degree obtained from UCSF School of Dentistry. Currently practices at May M. Chang MD (May M. Chang MD), located at 1744 NE 42nd Ave, Portland, OR 97213. Dr. Chang specializes in Cleanings & Exams, Sealants & Fluoride, Nutritional Counseling, Complete Oral Hygiene Instructions, Emphasis in Preventative Dentistry, Periodontal Treatments, Emergency Care, Cosmetic Dentistry, Extr. In addition to English, Dr. Chang speaks Mandarin.