Proton Radiation Physicist Joins UAMS Department of Radiation Oncology

By Marty Trieschmann

Hsi will work in the Proton Center of Arkansas, a partnership of UAMS, Arkansas Children’s, Baptist Health and Proton International that will provide the most advanced form of radiation therapy to children and adults with cancer. The center is the first of its kind in the state of Arkansas and one of only 41 proton centers in the United States.

“Dr. Hsi has experience in proton treatment planning and quality assurance in many disease sites, including pediatric, intracranial and prostate cancers,” said Fen Xia, M.D., Ph.D., radiation oncologist and chair of the UAMS Department of Radiation Oncology. “We are glad that Dr. Hsi joined our team to help make proton therapy available in Arkansas.”

Prior to joining UAMS, Hsi was assistant professor at the University of Florida Health Proton Therapy Institute in Jacksonville, Florida. He has served as senior medical physicist for the Miami Cancer Institute in Miami, the Shanghai Proton and Heavy Ion Center in Shanghai, China, the McLaren Proton Therapy Center in Flint, Michigan, and the Midwest Proton Radiotherapy Institute in Bloomington, Indiana. He is certified in Therapeutic Medical Physics by the American Board of Radiology.

Hsi is a graduate of Soochow University in Taiwan. He came to the United States in 1988 as a doctoral student in the Cyclotron Laboratory at Michigan State University.


UAMS is the state’s only health sciences university, with colleges of Medicine, Nursing, Pharmacy, Health Professions and Public Health; a graduate school; a hospital; a main campus in Little Rock; a Northwest Arkansas regional campus in Fayetteville; a statewide network of regional campuses; and eight institutes: the Winthrop P. Rockefeller Cancer Institute, Jackson T. Stephens Spine & Neurosciences Institute, Harvey & Bernice Jones Eye Institute, Psychiatric Research Institute, Donald W. Reynolds Institute on Aging, Translational Research Institute, Institute for Digital Health & Innovation and the Institute for Community Health Innovation. UAMS includes UAMS Health, a statewide health system that encompasses all of UAMS’ clinical enterprise. UAMS is the only adult Level 1 trauma center in the state. UAMS has 3,275 students, 890 medical residents and fellows, and five dental residents. It is the state’s largest public employer with more than 12,000 employees, including 1,200 physicians who provide care to patients at UAMS, its regional campuses, Arkansas Children’s, the VA Medical Center and Baptist Health. Visit or Find us on Facebook, X (formerly Twitter), YouTube or Instagram.