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Radiation Oncology UCLA


Our Expert Physicians / Faculty


Dr. Michael Steinberg - UCLA Radiation Oncology Michael Steinberg, MD, FASTRO, FACR, FACRO
Chair, UCLA Department of Radiation Oncology
Director, Clinical Affairs,
Jonsson Comprehensive Cancer Center

Dr. Steinberg is Professor and Chair of the Department of Radiation Oncology at the David Geffen School of Medicine at UCLA. His professional career spans private, corporate and academic practice and is known for  the development  of multi-site radiation oncology care networks that  are characterized by clinical excellence and community based clinical research. The UCLA Radiation Oncology network includes the department at Ronald Reagan Medical Center at UCLA, academically oriented community practices as well as Children's Hospital Los Angeles. Dr. Steinberg has specific expertise in the treatment of tumors of the GU system, breast and head and neck.  He specializes in the use of technically advanced treatment modalities such as Stereotactic Body Radiation Therapy (SBRT) and brachytherapy for the treatment of malignancy. Dr. Steinberg publishes and is a speaker on issues related to health policy including quality of care, technology assessment, healthcare economics and disparity.  He served as the PI for a National Cancer Institute Cancer Disparity Research grant and as a health services research investigator and manuscript author at the RAND Corporation.

Dr. Steinberg has been influential in providing input regarding health policy and economic issues on behalf of patients and his specialty through his various leadership roles in radiation oncology.  He is the founding Chair of the Health Policy Council of American Society of Radiation Oncology (ASTRO) and served as a member of the board of that organization.  Dr. Steinberg is the radiation oncology representative to the American Medical Association's CPT Editorial Panel, served two terms on the Medicare Evidence and Coverage Advisory Committee (MCAC) and chairs of the Health Policy Committee of the Commission on Radiation Oncology of the American College of Radiology.  He also currently serves on the Carrier Advisory Committee (CAC) for his regional Medicare carrier.

Dr. Steinberg graduated Occidental College Phi Beta Kappa, was elected to AOA at   University of Southern California School of Medicine and did his radiation oncology residency and fellowship at UCLA. 

Dr. Phillip Beron - UCLA Radiation Oncology Phillip J. Beron, MD

Dr. Beron is a board-certified radiation oncologist and Assistant Clincal Professor in the Department of Radiation Oncology at the David Geffen School of Medicine at UCLA. His professional career spans private and academic practice. Dr. Beron is Chief of the Radiation Oncology Lymphoma Service and Chief of the Westwood Radiation Oncology Breast Cancer Service. Dr. Beron specializes in treatments of all cancer types, but has extensive experience in Intensity-Modulated Radiotherapy (IMRT), stereotactic radiosurgery techniques, stereotactic body radiotherapy techniques, and other advanced techniques in radiation therapy. Dr. Beron is certified in Gamma Knife/linac stereotactic radiosurgery techniques.

Dr. Beron is an experienced brachytherapist (implant physician) and performs prostate, GYN, and breast implants.  He is trained in partial breast radiation techniques such as Mammosite and intraoperative breast radiation (IORT). Dr. Beron is a Chief Quality Officer in the Department of Radiation Oncology, Chair of the Quality and Safety Oversight Committee in the Department of Radiation Oncology, and a member of the UCLA Medical Center Quality Measurement and Improvement Committee where he serves as a quality officer.

Dr. Beron graduated from Michigan State University, was elected AOA at Wayne State University Medical School, and completed radiation oncology residency at William Beaumont Hospital in Royal Oak, MI.  He is a member of American Society for Therapeutic Radiation Oncology (ASTRO) and the American Brachytherapy Society (ABS). (more)

Dr. Allen Chen - UCLA Radiation Oncology Allen Chen, MD

Dr. Allen Chen is a Professor of Radiation Oncology and Vice Chair of Education at the David Geffen School of Medicine at UCLA. He also serves as Residency Training Program Director and supervises the medical student clerkship. Dr. Chen graduated from Cornell University with duel degrees in the biological sciences and American history, earned his medical degree from Yale University, and completed residency training at the University of Texas- M.D. Anderson Cancer Center and the University of California, San Francisco.
Dr. Chen has an international reputation in the treatment of head and neck cancer and has published more than 200 original peer-reviewed articles, abstracts, and book chapters. His research on advanced technologies to optimize cure rates and quality of life has shaped practice guidelines, and he is a frequently invited speaker at conferences throughout the world. Dr. Chen has a particular interest in human papillomavirus (HPV)-related head and neck cancers, having opened one of the country's first clinical trials analyzing the feasibility of radiation dose de-escalation and initiating translational protocols to perform molecular profiling from cancer tissue. His pioneering work on the radiation sensitivity of the brachial plexus earned him the prestigious Simon Kramer award from the Radiation Therapy Oncology Group (RTOG) in 2009, and his classic publication on this subject was ranked number 1 as the "10 most downloaded articles of 2012" from the International Journal of Radiation Oncology, Biology, Physics. Dr. Chen serves on the scientific program committee for the American Society for Radiation Oncology (ASTRO), acts as reviewer for over 20 cancer-related journals, and sits on the editorial board for Head and Neck. He is a leader in clinical trial consortiums including the Radiation Therapy Oncology Group (RTOG) and the Southwestern Oncology Group (SWOG) and serves as principle investigator for several key ongoing multi-institutional studies. Dr. Chen has also received numerous commendations for his mentorship, innovative teaching methods, and efforts to promote wellness among medical students and residents. (more)

 Dr. Robert K Chin - UCLA Radiation Oncology

Robert K Chin, MD, PhD 

Dr. Robert K. Chin received his B.A. degree in philosophy from The Johns Hopkins University.  He received his Ph.D. from the Committee on Immunology at the University of Chicago, where he researched T cell development and how radiotherapy enhances anti-tumor immunity.  Dr. Chin subsequently won the Leon O. Jacobson Prize for research when he received his M.D. degree from the Pritzker School of Medicine at the University of Chicago in 2006.  He completed his clinical specialty training in Radiation Oncology at Stanford Cancer Institute.

Upon graduation, Dr. Chin joined the faculty at the University of Chicago as Assistant Professor.  He focused on malignancies of the head and neck, central nervous system, lung, and gastrointestinal systems.  He routinely performed single and multi-fraction radiosurgery cases for brain, liver, and lung lesions.  His clinical protocols focused on radiotherapy dose reduction in HPV-associated head and neck cancers.

Dr. Chin has been an invited speaker at both national and international scientific meetings.  His research has been published widely in leading scientific journals, and includes first author papers in Nature Medicine, Nature Immunology, and Proceedings of the National Academy of Sciences.

Outside of the clinic, Dr. Chin has a special interest in self-sustaining public health projects in Southern Africa.  He has received grants for these efforts, and has worked or studied in South Africa, Mozambique, Zimbabwe, and Cuba.  In his spare time, Dr. Chin dotes on his aging motorcycle and works on the next big idea.(more)

Dr. David Jeffrey Demanes - UCLA Radiation Oncology David Jeffrey Demanes, MD, FACRO

Dr. Demanes received his bachelor of arts degree from UC Berkeley and his medical degree from the David Geffen School of Medicine at UCLA. He completed residencies in internal medicine and radiation oncology at UCLA and his medical oncology fellowship at UCSF. He is the past chairman and president of the American College of Radiation Oncology.  Dr. Demanes specializes in brachytherapy, the surgical subspecialty of radiation oncology. He founded the California Endocurietherapy Center (CET) in 1981 and has performed more than 10,000 surgical radiation implants. Dr. Demanes pioneered the use of high-dose-rate brachytherapy in prostate, head and neck, breast, GI, and gynecologic cancer. His research explores the novel use of brachytherapy in the treatment of cancer.(more)



Dr. Mitchell Kamrava - UCLA Radiation Oncology Mitchell Kamrava, MD

Dr. Mitchell Kamrava graduated from the University of California, San Diego (UCSD) Medical School.  While pursuing his medical education, he also spent a year as a Howard Hughes Research Scholar conducting research on ovarian cancer at the National Cancer Institute (NCI). He completed his internship in internal medicine at Stanford University Hospital and his residency in radiation oncology at the NCI, where he served as chief resident.

Dr. Kamrava then completed a brachytherapy fellowship at the University of California Los Angeles (UCLA) Radiation Oncology Department and subsequently joined the faculty as an Assistant Clinical Professor.  In addition to being a part of the division of brachytherapy, Dr. Kamrava is Chief of the Gynecologic as well as Sarcoma services.

In 2013, Dr. Kamrava was recognized as a Super Doctor Southern California Rising Star and as a Top Oncologist by the International Association of Oncologists. (more)



Dr. Tania Kaprealian - UCLA Radiation Oncology Tania Kaprealian, MD

Dr. Tania Kaprealian is an Assistant Professor in the Department of Radiation Oncology at the David Geffen School of Medicine at UCLA.  She completed her medical degree and residency training in Radiation Oncology at the University of California in San Francisco.  Subsequently she practiced at the American University of Beirut Medical Center where she was an Assistant Professor and Program Director in their Department of Radiation Oncology before joining the University of California Los Angeles (UCLA) Radiation Oncology Department.

Dr. Kaprealian specializes in all treatments of all cancer types, but has extensive experience in in both Intensity-Modulated Radiotherapy (IMRT), stereotactic radiosurgery techniques, stereotactic body radiotherapy techniques, and other advanced techniques in radiation therapy.  She has published articles on CNS malignancies as well as prostate cancer.  Her work has been presented at national meetings.  Dr. Kaprealian specializes in the treatment of CNS, pediatric, breast, and prostate malignancies. She is a member of the American Society of Therapeutic Radiation and Oncology, American Society of Clinical Oncology, and American College of Radiology. (more)



 Dr. David C. Khan - UCLA Radiation Oncology  David C. Khan, MD

Dr. David C. Khan is a board Certified Radiation Oncologist and Assistant Clinical Professor at UCLA.  He is the Medical Director at the Los Angeles Cancer Institute.  His clinical interests include Intensity Modulated Radiotherapy (IMRT), Stereotactic Body Radiotherapy (SBRT), Stereotactic RadioSurgery (SRS) and High Dose Rate (HDR) Brachytherapy for breast malignancies.

Dr. Khan received his medical degree from Oregon Health Sciences University and was the recipient of the post-sophomore fellowship in anatomic pathology.  He then completed his internship and residency at New York University.

In addition to his busy clinical practice, Dr. Khan has extensive clinical research and has numerous publications on cancer care disparity, prostate cancer and breast cancer. In recognition of his superior clinical acumen and compassionate bedside manner, Dr. Khan has been selected as one of the Best Doctors in America since 2008. (more)



Dr. Christopher King - UCLA Radiation Oncology Christopher King, MD, PhD

Dr. King is a Professor of Clinical Radiation Oncology and Urology at UCLA. He received his medical degree from Boston University, and completed his residency training in radiation oncology at Yale-New Haven Hospital. Dr. King also holds a PhD in Astrophysics from Yale University.

Dr. King specializes in the treatment of genitourinary cancer and has pioneered the use of stereotactic body radiation therapy (SBRT) for the treatment of prostate cancer. His research explores novel treatment techniques for kidney, bladder cancer and prostate cancer. (more




Dr. Patrick Kupelian - UCLA Radiation Oncology Patrick Kupelian, MD

Dr. Kupelian is a Professor of Radiation Oncology and Vice-Chair of Clinical Operations and Clinical Research at UCLA. He completed his residency training in radiation oncology at the University of Texas MD Anderson Cancer Center in Houston, and completed a fellowship at the Cleveland Clinic Foundation. Following his fellowship, he was the section head of genitourinary malignancies in the Department of Radiation Oncology at the Cleveland Clinic for 8 years. He also served as the Clinical Research Director of the Department of Radiation Oncology at the Cleveland Clinic Foundation. Dr. Kupelian comes to UCLA from MD Anderson Cancer Center in Orlando, FL, where he was the Chairman and Scientific Director of Research for Radiation Oncology, and a Professor at the University of Central Florida.

Although he specializes in genitourinary malignancies, he is an internationally known expert in the development and evaluation of cutting edge technologies in Radiation Oncology for a variety of anatomic sites. He has pionneered high-dose hypofractionated radiation therapy for prostate cancers. He has also played a significant role in the introduction and implementation of multiple image guidance techniques in radiotherapy. He has authored more than 140 research papers, over 250 abstracts, multiple review papers and book chapters.

He is Board certified in Radiation Oncology. He is a member of the American Society of Therapeutic Radiation and Oncology (ASTRO), the European Society of Therapeutic Radiology and Oncology, American Society of Clinical Oncology, the American Urological Association and the American Brachytherapy society. (more)



Dr. Percy Lee - UCLA Radiation Oncology Percy Lee, MD

Percy Lee, MD earned his medical degree from Harvard Medical School, where he graduated magna cum laude. At Harvard, he was also a Howard Hughes Medical Institute Research fellow. He interned at Massachusetts General Hospital and received specialty training in Radiation Oncology from Stanford University.

Dr. Lee is an Associate Clinical Professor in Radiation Oncology and Clinical Director of the Stereotactic Body Radiation Therapy (SBRT) program. He is an expert in lung cancer, cancers of the digestive tract, central nervous system tumors, and renal cell carcinoma. His expertise includes intensity-modulated radiation therapy (IMRT), as well as SBRT and stereotactic radiosurgery (SRS) where highly focused radiation is concentrated on localized tumors. These approaches minimize radiation to surrounding normal tissue, thereby reducing side effects and improving tumor control. Dr. Lee is focused on developing novel functional image-guided radiation therapy approaches and discovering new molecularly targeted anti-angiogenic drugs for cancer therapy. In addition, he is investigating combining molecular targeted therapy with SBRT in a rational and innovative approach with the goal of improving treatment outcomes. (more)



Dr. Steve Lee - UCLA Radiation Oncology Steve P. Lee, MD, PhD

Dr. Lee came to the United States from Taiwan at age 15. He attended a public school in Los Angeles, and received his B.S. degree in Physics at UCLA in 1984. During his college years, he developed an interest in the integration of physics and biology. He decided to pursue his graduate training in Biomedical Physics at UCLA and received his M.S. degree in 1986, under the guidance of Professor J. B. Smathers of the Department of Radiation Oncology.  Determined to be a radiation oncologist, Dr. Lee then went on to attend medical school at the Ohio State University. (more)



Dr. Susan McCloskey - UCLA Radiation Oncology Susan McCloskey, MD, MSHS

Susan McCloskey, MD, MSHS is an Assistant Professor of Radiation Oncology at UCLA. Dr. McCloskey received her undergraduate and medical degrees from Emory University in Atlanta, GA and subsequently completed radiation oncology residency training at Roswell Park Cancer Institute. Dr. McCloskey also holds a master’s degree in health services research from the UCLA School of Public Health. Dr. McCloskey specializes in the treatment of breast cancer and her research focuses on quality of care, quality of life, and health technology and outcomes assessment. (more)



Dr. Afshin Safa - UCLA Radiation Oncology Afshin Safa, MD

Afshin Safa, MD is a board certified Radiation Oncologist who serves as the medical director of the Harold and Carole Pump Dept. of Radiation Oncology at Northridge Hospital Medical Center. He is the chairman of the Cancer Committee and the Radiation Safety Officer. He is an Assistant Clinical Professor at UCLA’s Geffen School of medicine.

Dr. Safa serves on the Health Policy council for the American Society of Therapeutic Radiation Oncology (ASTRO), where he is the Chairman of Code Utilization Committee. Dr. Safa is the past-president of the Los Angeles Radiological Society (LARS) and also served as the past president of California Radiation Oncology Society (SCROS). Dr. Safa graduated Summa Cum Laude from UCLA with a Bachelors of Science degree in Electrical Engineering. He earned his M.D. degree at the University of California, San Diego School of Medicine, and continued specialty training in radiation oncology at UCLA. Dr. Safa specializes in prostate cancer, gynecological cancers, breast cancer, Head and neck, and brain tumors. Dr. Safa has special expertise in highly precise radiation utilizing IMRT and IGRT with Trilogy Stereotactic Body Radiation Therapy (SBRT).  He also specializes in Gamma KnifeStereotactic Radiosurgery, and Brachytherapy implants.

In recognition of his distinguished service and expertise, Dr. Safa has been continuously selected by his peers to be included in Best Doctors in America for over 11 years. Dr. Safa is fluent in Persian and Spanish (Medical). (more)



 Dr. Sayana Shah - UCLA Radiation Oncology Sayana Shah, MD

Sayana Shah, MD is a board certified Radiation Oncologist and Assistant Clinical Professor at UCLA. Dr. Shah graduated from the University of Wisconsin-Madison on the Dean's List, with a Bachelors of Science degree in Biology.  She went on to receive her medical degree from the University of Wisconsin School of Medicine and Public Health, where she graduated with Alpha Omega Alpha Honors distinction.  She then completed specialty training in Radiation Oncology at the University of Wisconsin Hospitals and Clinics.  She served as Chief Resident and received specialized training in all of the latest technologies. 

Dr. Shah currently practices at two sites in Orange County: Fountain Valley and Anaheim, and serves as Radiation Safety Officer for Anaheim Regional Medical Center.  Her areas of clinical expertise include IMRT, IGRT, and SBRT, in the treatment of breast, prostate, lung, central nervous system, gastrointestinal, gynecologic, and head & neck cancers.  Dr. Shah's research endeavors have focused on the treatment of central nervous system and lung tumors, including advanced brachytherapy techniques, IMRT using TomoTherapy, SBRT, and intensity modulated proton therapy.  She has presented her research at many regional and national meetings. (more)


 Dr. Robert Woodhouse - UCLA Radiation Oncology Robert Woodhouse, MD

Robert Woodhouse, MD is a board certified Radiation Oncologist and Assistant Clinical Professor at UCLA. Dr. Woodhouse has been in private practice since 1981 and currently is the Medical Director at two sites in Orange County: Fountain Valley and Anaheim. He specializes in all cancer treatments and has special clinical interests in IMRT, IGRT and Cyberknife.
Prior to medical school he received a Master's Degree in Physics from the University of Wisconsin, and served 4 years as a Captain in the USAF directing radiation safety at Wright Patterson Air Force Base and the Armed Forces Radiobiology Research Institute.  He graduated from Jefferson Medical College in Philadelphia and completed his residency at the University California San Francisco. (more)

Antonio De Salles, MD, PhD Antonio De Salles, MD, PhD (Neurosurgery)

Professor In Residence and Director of the Stereotactic Surgery program, and Co-Director of the Radiosurgery Program.  Dr. DeSalles focuses on noninvasive techniques of surgery in the management and treatment of inoperable brain tumors using Novalis Shaped Beam Radiosurgery System (advanced technology in comparison to the X-Knife and Gamma Knife). He also does research and surgery for Parkinson's disease and various movement disorders, as well as surgery for pain. (more)



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