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Department of Radiation Oncology

Department of Radiation Oncology


Our radiation oncology experts bring their extensive education and experience to each patient, one at a time.  We 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.  At the UC Davis Comprehensive Cancer Center, we 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 specialties of the department faculty and physicians below is only a sampling of their treatment areas.  If you do not see a specialty 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.

Radiation Oncology Faculty
Richard Valicenti Megan Daly Ruben Fragoso
Richard Valicenti, M.D.
Department Chair of Radiation Oncology
Areas of Specialty: prostate or other genitourinary (GU) cancers, prostate cancer brachytherapy, gamma knife

Megan Daly, M.D.
Assistant Professor
Areas of Specialty: breast, head/neck and lung cancers, lymphoma, stereotactic body radiotherapy (SBRT), intensity modulated radiation therapy (IMRT), and image guided radiation therapy (IGRT)

Ruben Fragoso, M.D., Ph.D.
Assistant Professor
Areas of Specialty: brain tumors, gamma knife, pediatric cancer

Jyoti Mayadev Arta Monjazeb Shyam Rao
Jyoti Mayadev, M.D.
Assistant Professor
Brachytherapy Director
Areas of Specialty: breast and gynecological (GYN) cancers, breast and gynecological brachytherapy, high dose rate (HDR) brachytherapy

Arta Monjazeb, M.D., Ph.D.
Assistant Professor
Areas of Specialty: colon, rectal and anal cancer, stomach and pancreatic cancer

Shyam Rao, M.D., Ph.D.
Areas of Specialty:
head/neck, brain and lung cancers; intensity modulated radiation therapy (IMRT), image guided radiation therapy (IGRT), radiosurgery and stereotactic body radiation therapy (SBRT)

Eric Ko    

Eric Ko, M.D., Ph.D.
Areas of Specialty:
head and neck; breast; genitourinary (including prostate); gastrointestinal; thoracic; gynecologic; lymphoma; central nervous system
Location: Mercy Merced