Peter Park, Ph.D.

Peter Park, Ph.D.


Radiation Oncology


  • Medical Physicist


UC Davis Comprehensive Cancer Center

4501 X St., Suite 0140
Sacramento, CA 95817
Driving Directions

Primary Phone:

Additional Phone Numbers

Clinic Fax: 916-703-5069
Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Philosophy of Care

Dr. Park's research focuses on improving the diagnosis and treatment of liver and pancreatic cancer, especially through new methods of image processing and data-driven classification and pattern recognition in conjunction of developing novel radiation treatment planning strategies.

Clinical Interests

Dr. Park is a board certified medical physicist. He has special interest and expertise in Stereotactic body radiation therapy (SBRT), Image guided radiation therapy (IGRT), High dose rate brachytherapy (HDR), and proton therapy. He has expertise in treatment of  gastrointestinal cancer.


Radiation Oncology


Ph.D., University of Texas MD Anderson Cancer Center, Houston TX 2012

B.S, UC San Diego, La Jolla CA 2008


Medical Physics, Emory University, Atlanta GA 2013-2014

Board Certifications

American Board of Radiology, Radiation Oncology,

Professional Memberships

American Association of Medical Physicist

American Society for Radiation Oncology (ASTRO)

Select Recent Publications

Cazoulat G, Elganainy D, Anderson BM, Zaid M, Park PC, Koay EJ, Brock KK. Vasculature-Driven Biomechanical Deformable Image Registration of Longitudinal Liver Cholangiocarcinoma Computed Tomographic Scans. Adv Radiat Oncol. 2019 Oct 17;5(2):269-278. doi:10.1016/j.adro.2019.10.002. PMID:32280827.

Li H, Zhang X, Park P, Liu W, Chang J, Liao Z, Frank S, Li Y, Poenisch F, Mohan R, Gillin M, Zhu R. Robust optimization in intensity-modulated proton therapy to account for anatomy changes in lung cancer patients. Radiother Oncol. 2015 Mar;114(3):367-72. doi:10.1016/j.radonc.2015.01.017. Epub 2015 Feb 20. PMID:25708992.

Park PC, Cheung JP, Zhu XR, Lee AK, Sahoo N, Tucker SL, Liu W, Li H, Mohan R, Court LE, Dong L. Statistical assessment of proton treatment plans under setup and range uncertainties. Int J Radiat Oncol Biol Phys. 2013 Aug 1;86(5):1007-13. doi:10.1016/j.ijrobp.2013.04.009. Epub 2013 May 18. PMID:23688812.

Liu W, Frank SJ, Li X, Li Y, Park PC, Dong L, Ronald Zhu X, Mohan R. Effectiveness of robust optimization in intensity-modulated proton therapy planning for head and neck cancers. Med Phys. 2013 May;40(5):051711. doi:10.1118/1.4801899. PMID:23635259.

Park PC, Zhu XR, Lee AK, Sahoo N, Melancon AD, Zhang L, Dong L. A beam-specific planning target volume (PTV) design for proton therapy to account for setup and range uncertainties. Int J Radiat Oncol Biol Phys. 2012 Feb 1;82(2):e329-36. doi:10.1016/j.ijrobp.2011.05.011. Epub 2011 Jun 22. PMID:21703781.

Yang M, Zhu XR, Park PC, Titt U, Mohan R, Virshup G, Clayton JE, Dong L. Comprehensive analysis of proton range uncertainties related to patient stopping-power-ratio estimation using the stoichiometric calibration. Phys Med Biol. 2012 Jul 7;57(13):4095-115. doi:10.1088/0031-9155/57/13/4095. Epub 2012 Jun 7. PMID:22678123.