Our board-certified radiation oncologists bring their extensive education and experience to each patient, one at a time. They understand that every patient requires individual attention as each person and disease course is unique.

Our radiation oncologists are highly skilled in both conventional and cutting-edge radiation therapies. Using the comprehensive resources of the UC Davis Cancer Center, they seek to provide the most innovative and effective cancer treatments available.

UC Davis faculty radiation oncologists frequently specialize in certain procedures or pursue specific fields of interest.  However, the listed specialities of the department faculty and physicians below is only a sampling of their treatment areas.  If you do not see a speciality or interest below to match your diagnosis or concern, please call (916) 734-1971 or (800) 770-9275, Monday through Friday 8 a.m. to 5 p.m. for more information.

Janice Ryu, M.D.
Professor of Radiation Oncology
Areas of Specialty: Breast, GYN, Peds, Melanoma/Sarcoma

Allen M. Chen, M.D.
Radiation Oncologist
Areas of Specialty: Head/Neck, Breast

Stephen Franklin, M.D.
Radiation Oncologist 
Areas of Specialty: Brain, CNS

Richard L. S. Jennelle, M.D.
Radiation Oncologist
Areas of Specialty: Lung, Gastrointestinal (GI)