Xiao Zhao, M.D., M.E.M.

Assistant Professor, Department of Radiation Oncology

Director of Brachytherapy Services

To see if Xiao Zhao is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).



Radiation Oncology


Radiation Oncology

Locations and Contact

UC Davis Comprehensive Cancer Center

UC Davis Comprehensive Cancer Center
4501 X St.
Sacramento, CA 95817

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Additional Numbers

Clinic Phone


Physician Referrals

800-4-UCDAVIS (800-482-3284)

Philosophy of Care

Dr. Zhao believes in developing a strong patient physician relationship and understanding each person's unique goals and desires. Through this he hopes to enable each patient to patient empowered in their fight against cancer. He has the privilege of working with excellent staff that will also assist throughout the course of radiation therapy.

Clinical Interests

Dr. Zhao has a passion to help patients in their fight against cancer both through clinical and technical expertise as well as caring for each person's individual needs. Beyond work, Dr. Zhao remains an active member in his community. He enjoys spending time with his wife and children, staying active, basketball, movies, dining around town and following his favorite sports teams.

Research/Academic Interests

Dr. Zhao's primary research interests focus on improving patient experience and outcomes in the field of radiation oncology, specifically brachytherapy. He is passionate about developing ways to apply the advanced techniques and technology available at UC Davis to more rural and remote places in the world.


Radiation Oncology

Center/Program Affiliation

UC Davis Comprehensive Cancer Center

Undergraduate School

B.S.E., Duke University, Durham NC 2008

Medical School

M.D., UC San Diego, San Diego CA 2013

Other School

M.E.M., Duke University, Durham NC 2009


General Surgery, Kaiser Permanente Los Angeles, Los Angeles CA 2013-2014


Radiation Oncology, UC Davis, Sacramento CA 2014-2018

Resident of the Year Award - Clinical Trial Research - UC Davis 2015, 2016, 2017, 2018

Zhao X, Rao S. Surveillance imaging following treatment of head and neck cancer. Semin Oncol. 2017 Oct;44(5):323-329. doi:10.1053/j.seminoncol.2018.01.010. Epub 2018 Feb 9. PMID:29580434.

Zhao X, Vaughn A. Radiobiology of Brachytherapy. Mayadev J, Benedict SH, Kamrava M (eds). Handbook of Image-Guided Brachytherapy, Springer. 2017;1(1):3-18.

Lau SK, Zakeri K, Zhao X, Carmona R, Knipprath E, Simpson DR, Nath SK, Kim GY, Sanghvi P, Hattangadi-Gluth JA, Chen CC, Murphy KT. Single-Isocenter Frameless Volumetric Modulated Arc Radiosurgery for Multiple Intracranial Metastases. Neurosurgery. 2015 Aug;77(2):233-40; discussion 240. doi:10.1227/NEU.0000000000000763. PMID:25856109.