Dr. Henry S. Park is a board-certified radiation oncologist who currently serves as Assistant Professor of Therapeutic Radiology and as the Director of Thoracic Radiotherapy at the Yale School of Medicine. He received his undergraduate degree from Yale College, master's degree from the Harvard School of Public Health, and medical doctorate degree from the Yale School of Medicine. He completed his internal medicine internship at Harvard Medical School's Beth Israel Deaconess Medical Center and returned to Yale New Haven Hospital for his residency and chief residency in radiation oncology.

Dr. Park specializes in radiation therapy for lung cancer, head and neck cancer, and brain tumors. He is an active comparative effectiveness and health services researcher, having co-authored over 100 peer-reviewed original research articles, reviews, and chapters. He also serves as the department's director of continuing medical education, director of medical student education, and associate program director of the residency.