Sam Sun, MD

Dr. Sam Sun joined Ironwood Cancer & Research Centers in August 2024 after practicing for several years as a board certified radiation oncologist in Texas.  He completed his undergraduate studies in bioengineering at Olin College on a full tuition scholarship and received his MD from Washington University in St. Louis.  He completed his residency in radiation oncology at Baylor College of Medicine, where he served as Chief Resident.

Dr. Sun was inspired to be an oncologist by his grandfather, who developed colon cancer in an area without the infrastructure to manage complex diseases. At Ironwood, Dr. Sun is privileged to care for patients – not only with advanced technology, but also with an exceptional team that provides compassionate, thoughtful care to patients. His technical expertise includes 3D-CRT, IMRT, IGRT, SBRT, Gamma Knife, CyberKnife, and LINAC-based radiosurgery, adaptive radiotherapy, brachytherapy, and radiopharmaceutical therapy.  Having advised medical device companies and co-authored papers in Cell and Nature Genetics, he has a strong understanding of biomedical research and new technology, which he combines with his broad clinical experience to create a personalized treatment plan for each patient.

Outside of work, Dr. Sun enjoys hiking the many trails around Phoenix, and spending time with his wife and their dog, Boba.