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University of California San Francisco

Our Team

Emily Hirata, Ph.D.

Associate Professor Division of Physics
Clinical Chief of Physics
Department of Radiation Oncology

Mother of two boys, outrigger canoe paddling, traveling abroad

Meet Dr. Hirata

I am incredibly grateful to be on a team that is filled with expertise and collaborative energy, and is dedicated to being the best for our patients. I feel inspired to bring my best self to UCSF, and motivated by the many ways that I can make a positive and meaningful contribution.

Emily Hirata, PhD, is the Chief of Clinical Physics at the UCSF Department of Radiation Oncology. Dr. Hirata is a board-certified medical physicist with research interests in data-centric quality improvement, workflow and process optimization, and standardization of clinical physics operations. She obtained her BS in Physics from Purdue University followed by her MS in Medical Physics from the University of Wisconsin-Madison. Prior to UCSF, she was the Chief Physicist at the Queen’s Medical Center for 10 years, during which she received her PhD in Biomedical Science from the University of Hawaii. Dr. Hirata is also a Physicist surveyor for the American College of Radiology, and serves on several committees with the American Association of Physicists in Medicine and the American Board of Radiology. Dr. Hirata is passionate about education and mentoring, is active in leadership development, and engaged in promoting science and math education with middle-school students.



Purdue University, West Lafayette, IN

BS Physics

University of Wisconsin, Madison, WI.

MS Medical Physics

University of Hawaii, Honolulu, HI.

PhD Biomedical Sciences
Professional Experience

Professional Experience

2015-2018 The Queen’s Medical Center, Honolulu, HI, Clinical Operations Manager Radiation Oncology
2008-2018 The Queen’s Medical Center, Honolulu, HI Chief Medical Physicist Radiation Oncology
2012-present American College of Radiology Accreditation Physicist Surveyor Radiation Oncology
2003-2008 The Queen’s Medical Center, Honolulu, HI Medical Physicist Radiation Oncology



Recent Significant Publications

Y. Kuang, L Wu, E. Hirata, K. Miyazaki, M. Sato, S. Kwee,  Volumetric Modulated Arc therapy Planning for Primary Prostate Cancer With Selective Intraprostatic Boost Determined by 18F-Choline PET/CT.   Int J Radiation Oncology, Biology, Physics. Vol 91, Issue 5, 2015

J. Fagerstrom, E. Hirata.  Surface dose effects of linen coverings for breast and chest wall patients.  Radiation Therapist, 2014

E. Y. Hirata, C. Cunningham, J. A. Micka, H. Keller, M. W. Kissick, and L. A. DeWerd.  Low dose fraction behavior of high sensitivity radiochromic film.  Med. Phys. 32, 1054 (2005)

Redefining Possible