Skip to Main Content

John Han-Chih Chang, MD

Assistant Professor

Dr. John Chang received his medical degree from the University of Michigan Medical School. He completed his internship at St. Joseph Medical Center and his residency at the Hospital of the University of Pennsylvania in Philadelphia. Prior to that, he received a bachelor’s degree in cellular and molecular biology from the University of Michigan.

Dr. Chang is certified by the American Board of Radiology in radiation oncology. His specialties are 3-D radiation conformal radiation therapy, intensity-modulated radiation therapy, stereotactic radiosurgery, high-dose-rate brachytherapy, permanent brachytherapy (seed implants), and proton therapy. Dr. Chang is knowledgeable in breast, head and neck, gastrointestinal, genitourinary, brain, lung, and pediatric malignancies.

Dr. Chang primarily practices at the Radiation Oncology Consultants, Central Dupage Protone Center - A ProCure Center, where he is the Director of Clinical Research. He is also principal investigator for the Radiation Therapy Oncology Group (RTOG) and the Children's Oncology Group (COG) Research Program. He is a peer review editor for the International Journal of Radiation Oncology, Physics and Biology

His interests include playing hockey and baseball with his two sons and playing softball with his wife. He derives great enjoyment in training his English Bulldog to become a pet therapy dog.

Personal Statement

On why he chose Radiation Oncology:
"Although I thoroughly enjoyed research and the technological aspect of medicine early in my career, I longed for patient contact.  Radiation Oncology gives me the perfect setting to use my expertise in technology to help my patients fight their disease with the most advanced therapies possible."