Faculty and Staff
The Department of Radiation Medicine is made up of Faculty Radiation Oncologists and Medical Physicists, as well as several Clinical Associates at our satellite locations across the state, Get to know more about our team below.
Interim Chair
Arthur Hung, M.D.
Arthur Hung, M.D. is interim chair of the Department of Radiation Medicine and associate professor of radiation medicine and associate professor of ophthalmology. Dr. Hung serves as medical director of the Radiation Therapy Training Program. He specializes in genitourinary oncology (treating cancers of the reproductive organs) and soft tissue sarcomas (cancers of the soft tissues of the body), but treats all types of cancer.
Dr. Hung earned undergraduate engineering and history degrees from Rice University before receiving his medical degree from The Ohio State University in 1997. He then completed an internship at St. Joseph’s Hospital in Denver and residency training at M.D. Anderson Cancer Center in Houston. He joined OHSU in 2002 and has clinical affiliations with Hillsboro Medical Center and the VA Portland Health Care System.
Chief Physicist
John Bayouth, Ph.D. is the Chief Medical Physicist of the Department of Radiation Medicine.
Dr. Bayouth earned bachelor's and master's degree from the Kansas State University. He holds a doctoral degree in radiation physics from MD Anderson and completed a research fellowship in radiation physics with MD Anderson. His research interests have been in Radiation-induced changes in pulmonary function and MRI/Image Guided Radiation Therapy.
Administrator
Kevin Keen is the Department Administrator of the Department of Radiation Medicine. Kevin graduated from the University of Arkansas at Fayetteville with a Bachelor’s of Science in Business Administration. He attended the University of Arkansas for Medical Sciences’ (UAMS) College of Public Health and graduated with a Masters in Health Administration while interning under the campus CFO. He then completed an administrative fellowship at the UAMS Medical Center during which he was fortunate to work on several projects with the leadership of the Rockefeller Cancer Institute. Kevin accepted a position with the Rockefeller Cancer Institute following his fellowship, and for five years worked alongside many incredible leaders, striving to improve access and outcomes for cancer patients in Arkansas. During this time, he was proud to support their Radiation Oncology Center as they achieved ASTRO’s APEx accreditation, opened satellite treatment facilities in underserved areas, and began construction of Arkansas’ first proton therapy center.