Dr. Chang is a licensed Internal Medicine in MA. Graduated in 1984. Medical degree obtained from National Yang-Ming University School of Medicine, Taiwan. Completed residency training at Tufts and Boston University. Currently practices at Office of Dr. Jack Chang (Office of Dr. Jack Chang), located at 706 Rogers St, Lowell, MA 08152. Dr. Chang specializes in internal medicine and primary care.. In addition to English, Dr. Chang speaks Mandarin, Taiwanese, and Cantonese and accepts new patients.