Dr. Hwang is a licensed Radiation Oncology in MA. Medical degree obtained from Arizona School of Dentistry & Oral Health. Completed residency training at Massachusetts General Hospital. Currently practices at Mass General Brigham (Mass General Brigham), located at 55 Fruit St, Boston, MA 02114. Dr. Hwang specializes in treatment of gastrointestinal cancers.. In addition to English, Dr. Hwang speaks Mandarin and accepts new patients.