Radiation Oncology, Stanford University Medical Center, 2008
Internal Medicine, Harvard Medical School/Massachusetts General Hospital, 2004
MD, Harvard Medical School, 2003

Medical Board Certifications

Radiation Oncology
American Board of Radiology, 2009

State License

  • About Me

    About Me

    Percy Lee, M.D. is a specialist in radiation oncology at the UCLA Jonsson Comprehensive Cancer Center, Department of Radiation Oncology.   He is the clinical director of the Stereotactic Body Radiation Therapy (SBRT) Program at UCLA where highly focused and intensified doses of radiation therapy is given precisely in a few treatments (1-5) with excellent tumor control and minimal side effects. His areas of clinical expertise and research interest include lung cancer, cancers of the digestive tract, and hepatobiliary tumors. His expertise also includes the use of PET/CT scans for biologically-based radiation treatment planning, the use of 4-Dimensional CT scans to manage tumor and organ motion, as well as delivering highly precise external beam radiation therapy using intensity-modulated radiation therapy (IMRT). In addition, he is interested in developing novel ways of utilizing SBRT and image-guided radiation therapy to improve radiation treatment outcomes.

    His research interests are primarily translational: They include developing novel molecular imaging platforms for the use in radiation therapy planning, multi-modality treatments in cancer by combining targeted therapy and radiation therapy, as well as anti-angiogenic drugs for cancer therapy.

    Dr. Lee attended the Johns Hopkins University and graduated with the highest general and departmental honors, majoring in Biomedical Engineering. He attended Harvard Medical School and the Harvard-MIT Health Science and Technology program where he received his M.D., and graduated Magna cum laude. Dr. Lee completed internship in internal medicine at the Massachusetts General Hospital in Boston. He then completed specialty training in Radiation Oncology at the Stanford University School of Medicine, where he also served as Chief Resident.

    He currently serves as an Associate Professor in the Department of Radiation Oncology at the David Geffen School of Medicine at UCLA, when he was promoted with a 2-year acceleration. Throughout his training and career, Dr. Lee has earned a number of awards for his clinical and research accomplishments. In addition, he has published in a number of prestigious peer-reviewed journals on topics in his areas of expertise. His primary goals are to provide the highest quality of care for his patients, as well as advancing the current treatment paradigms in cancer therapy.

    On a personal note, Dr. Lee is a native of Arcadia, California, a suburb of Los Angeles County. It has been his long-time aspiration to practice radiation oncology near his hometown and to serve the communities that he has grown fond of.


  • Locations

    Radiation Oncology

    (primary location)
    200 UCLA Medical Plaza
    Suite B265
    Los Angeles, California 90095
  • Education

    Medical Board Certifications

    Radiation Oncology
    American Board of Radiology, 2009


    Radiation Oncology, Stanford University Medical Center, 2008
    Internal Medicine, Harvard Medical School/Massachusetts General Hospital, 2004
    MD, Harvard Medical School, 2003
  • Clinical Interests
    • Cancers of the Digestive Tract
    • Functional Image-Guided Radiation Therapy (Functional IGRT)
    • Gastrointestinal Malignancies
    • General Oncology
    • General Radiation Oncology
    • Intensity Modulated Radiation Therapy (IMRT)
    • Lung Cancer
    • Multimodality Cancer Therapy
    • Stereotactic Body Radiation Therapy (SBRT)
    • Stereotactic Radiosurgery
    • Total Body Irradiation (TBI)
  • Research

    Research Interest

    Translational research; Molecular imaging in cancer therapy; Functional Image-guided radiation therapy; Stereotactic body radiation therapy; Multi-modality cancer therapy combining targeted therapy and radiation therapy; Anti-angiogenic therapies.


    1. Mehta, N., King, C.R., Agazaryan, N., Steinberg, M., Hua, A., Lee, P., Stereotactic Body Radiation Therapy (SBRT) and Three-Dimensional Conformal Radiotherapy (#D-CRT) for Stage I Non-Small Cell Lung Cancer (NSCLC): A Pooled Analysis of Biological Equivalent Dose (BED) and Local Control. Practical Radiation Oncology (in press).
    2. Zumsteg, Z., Demarco, J., Lee, S.P., Steinberg, M., Lin, C.S., McBride, W., Lin, K., Wang, P.C., Kupelian, P., Lee, P., Image-Guidance During Head and Neck Radiation Therapy: Analysis of Alignment Trends with in-room Cone Beam CT Scans. International Journal of Radiation Oncology*Biology*Physics (in press).
    3. Lin, C.S., Selch, M.T., Lee, S.P., Wu, J.K., Xiao, F., Hong, D.S., Chen, C.H., Hussain, A., Lee, P., DeSalles, A.A. Accelerator-Based Stereotactic Radiosurgery for Brainstem Metastases. Neurosurgery Oct 12 (epub ahead of print), 2011.
    4. Lee, P., Bazan, J.G., Lavori, P.W., Weerasuriya, D.K., Quon, A., Le, Q.T., Wakelee, H.A., Graves, E.E., Loo, B.W. Metabolic Tumor Volume is an Independent Prognostic Factor in Patients Treated Definitely for Lung Cancer (epub ahead of print), 2011.
    5. Hong, J.C., Petrowsky, H., Kaldas, F.M., Farmer, D.G., Durazo, F.A., Finn, R., Saab, S., Han, S.H., Lee, P., Markovic, D., Lassman, C., Hiatt, J.R., Busuttil, R.W. Predictive Index for Tumor Recurrence after Liver Transplantation for Locally Advanced Intrahepatic and Hilar Cholangiocarcinoma. J Am Coll Surg Apr; 212(4):514-20, 2011.
    6. Lee, P.*, Evers, P.*, Demarco, J., Agazaryan, N., Sayre, J.W., Selch, M., and Pajonk, F. Irradiation of the Potential Cancer Stem Cell Niches in the Adult Brain Improves Progression-free Survival of Patients with Malignant Glioma. BMC Cancer, 10(1):384, 2010.
    7. Lee, P., Kee, S., Busuttil, R. Is Downstaging Prior to Liver Transplantation Important in Hepatocellular Carcinoma? Am J Transplant, 9(8): 1703-04, 2009.
    8. La, T.H., Filion, E.J., Turnbull, B.B., Chu, J.N., Lee, P., Nguyen, K., Maxim, P., Loo, B.W., Quon, A., Graves, E.E., and Le, Q.T. Metabolic Tumor Volume Predicts for Recurrences and Death in Head and Neck Cancer. International Journal of Radiation Oncology*Biology*Physics, 74(5):1335-41, 2009.
    9. Lee, P., Chan, C., Paulmurugan, R., Chan, D., Hua, A., Gambhir, S., Le, Q.T., and Giaccia, A. Noninvasive Monitoring of Ligand-dependent VEGF Receptor-2 Dimerization with Split Firefly Luciferase. (in preparation).
    10. Xie, Y., Chao, M., Lee, P., and Xing, L. Automated Rectal Contouring Algorithm for Adaptive Radiation Therapy Using Feature-based Registration. Medical Physics, in press (2008).
    11. Lee, J., Viakhireva, N., Cesca, C., Lee, P., Kohler, S., Hoppe, R.T., and Kim, Y. Clinico-pathologic Features and Treatment Outcomes in Woringer-Kolopp disease: Review of a Case Series. Journal of the American Academy of Dermatology (2008) Jun.
    12. Lee, P., Weerasuriya, D.K., Lavori, P.W., Quon, A., Hara, W., Maxim, P.G., Le, Q.T., Wakelee, H.A., Donington, J.S., Graves, E.E., and Loo, B.W. Metabolic Tumor Burden Predicts for Disease Progression and Death in Lung Cancer. International Journal of Radiation Oncology*Biology*Physics (2007) Oct; 69(2): 328-33.
    13. Tran, P.T., Zheng, S., Lee, P., Lavori, P., Husain, A., Teng, N., and Kapp, D.S. Prognostic Factors for Primary Squamous Cell Carcinoma of the Vagina Treated with Radiation. Gynecologic Oncology (2007) Jun; 105(3): 641-9.
    14. Feldner, J., Becker, T., Goishi, K., Schweitzer, J., Lee, P., Schachner, M., Klagsbrun, M., and Becker, C.G. Neuropilin-1a is Involved in Trunk Motor Axon Outgrowth in Embryonic Zebrafish. Developmental Dynamics (2005) Nov; 234(3): 535-49.
    15. Goishi, K., Lee, P., Davidson, A.J., Nishi, E., Zon, L., and Klagsbrun, M. Inhibition of Zebrafish Epidermal Growth Factor Receptor Activity Results in Cardiovascular Defects. Mechanisms of Development (2003) Jul; 120(7): 811-22.
    16. Lee, P., Goishi, K., Davidson, A.J., Mannix, R., Zon, L., and Klagsbrun, M. Neuropilin-1 is Required for Vascular Development and is a Mediator of VEGF-dependent Angiogenesis in Zebrafish. Proceedings of the National Academy of Sciences of the United States of America (2002) Aug; 99(16): 10470-5.
    17. Miao, H.Q., Lee, P., Lin, H., Soker, S., and Klagsbrun, M. Neuropilin-1 Expression by Tumor Cells Promotes Tumor Angiogenesis and Progression. The Journal of the Federation of American Societies for Experimental Biology (2000) Dec; 14(15): 2532-9.
    18. Bellows, D.S., Chau, N., Lee, P., Lazebnik, Y., Burns, W.H., and Hardwick, J.M. Anti-apoptotic Herpesvirus Bcl-2 Homologs Escape Caspase-mediated Conversion to Pro-apoptotic Proteins. Journal of Virology (2000) Jun; 74(11): 5024-31.

    *PL and PE are co-first authors and contributed equally.

  • News & Awards

    In the News


    • AACR/ASCO Vail Clinical Trials Workshop: Methods in Clinical Cancer Research
    • American Society for Therapeutic Radiology and Oncology Annual Meeting Travel Grant
    • 2007 RSNA Roentgen Resident/Fellow Research Award
    • Howard Hughes Medical Institute Research Training Fellowship for Medical Students
    • Richard J. Johns Award for Outstanding Achievement in Biomedical Engineering
    • American Association for Cancer Research (AACR) Science Education Award
  • Videos