John K. Hayes, MD

“When I was in medical school I took a rotation in radiation oncology and knew this was the field I should go into. The scientist in me was intrigued by the highly technical side. I also have a very clinical brain and I focus on a patient, their troubles and concerns. I enjoy getting to know what my patients do and what their interests are and then later getting updates on their lives when they come back for follow up visits. It means a lot to me to be able to do something that blesses so many lives.”

Dr. Hayes is a native of Provo, Utah and loves to be out in nature. He and his wife are avid hikers. He’s a bicycle commuter and finds that to be very relaxing. Dr. Hayes enjoys spending time with his family and their dogs.


MD: University of Utah, Salt Lake City
Residency: University of Utah, Salt Lake City

Board Certification

American Board of Radiology, Radiation Oncology
Dr. Hayes is world renowned for his expertise in brachytherapy. He has been performing brachytherapy procedures since 1988 and has performed thousands of implants. 
Dr. Hayes takes care of patients at St. Mark’s Hospital and Salt Lake Regional Medical Center in Salt Lake City.