Meet our Orange County Physician Scientists
Meet some of the world’s most acclaimed physician-scientists — with expertise in lung, breast, gastrointestinal, gynecological, genitourinary, blood cancers and more – assembled from across the country. They’re leading next-level cancer treatment and research.
Joshua G. Cohen, M.D., F.A.C.O.G., F.A.C.S., is a board-certified gynecologic oncologist dedicated to offering his patients in Orange County empathy and excellence in clinical care.
Jamie Fertal, D.O., is a noted specialist in palliative medicine for cancer patients. She focuses on therapies that improve the quality of life at any stage of the patient's cancer journey.
Stacy W. Gray, M.D., is deputy director of the Center for Precision Medicine and professor and chief of the Division of Clinical Cancer Genomics within the Department of Medical Oncology & Therapeutics Research, and a secondary appointment in the Department of Population Sciences.
P. Grace Harrell, M.D., M.P.H., is an associate clinical professor, Department of Anesthesiology.
Cory Hugen, M.D., is an Associate Clinical Professor in the Division of Urology and Urologic Oncology in the Department of Surgery at City of Hope Orange County.
Dr. Natalie Johnson is a prominent specialist in surgery for breast cancer, thyroid cancer, parathyroid disease, and melanoma.
Irene Kang, M.D., is medical director of women’s health medical oncology and assistant professor in medical oncology and therapeutics research.
Misagh Karimi, M.D., is a medical oncologist who is passionate about patient education, appearing frequently at community forums to discuss obesity, the environment and other possible risk factors for cancer.
Edward S. Kim, M.D., M.B.A., is the physician-in-chief of City of Hope Orange County, vice physician-in-chief of City of Hope National Medical Center, Professor, of the Department of Medical Oncology & Therapeutics Research, and Physician-in-Chief Chair of the Construction Industries Alliance City
Sudarsan Vishnu Kollimuttathuillam, M.D., is a medical oncologist and hematologist at City of Hope's Huntington Beach and Irvine Sand Canyon locations. Dr. Kollimuttathuillan places a priority on offering his patients access to innovative treatments and clinical trial options.
Jeffrey S. Yoshida, M.D., is the medical director of urologic surgery at City of Hope Orange County. He is currently located at the Newport Beach locations.