Kelly Yap CV Bio 300px

Kelly Yap, M.D.

  • Assistant Clinical Professor, Department of Medical Oncology and Therapeutics Research
  • Medical Oncologist

Kelly Yap, M.D.

Clinical Specialties
  • Medical Oncology
  • Hematology
Areas of Expertise
  • Breast Cancer
Other Languages Spoken
  • Mandarin, Cantonese
It is a great privilege and honor to be there to guide patients in their journey of healing.

Kelly Yap, M.D. is passionate about all the advances being made in the rapidly-changing field of medical oncology. She's excited to be able to offer her patients the latest personalized treatments which are more effective while causing fewer side effects. She makes it a priority to build relationships with her patients while guiding them through the complexity of cancer care.

Dr. Yap received her medical degree from Queen’s University of Belfast. She completed her Internal Medicine residency at York Hospital in York, Pennsylvania, where she was chosen as chief resident. She went on to complete a fellowship in hematology and oncology at Los Angeles County+USC Medical Center. 
Prior to joining City of Hope, she was an assistant professor at Keck School of Medicine USC. She is board-certified in Medical Oncology, Hematology and Internal Medicine. 
  • 2019-present, Assistant Clinical Professor, Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, California
  • 2016-2018, Assistant Professor of Clinical Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California

South Pasadena

City of Hope South Pasadena, 209 Fair Oaks Ave., South Pasadena, CA, 91030

Get Directions

Phone :  877-998-7546


City of Hope Arcadia, 301 W. Huntington Drive, Suite 400, Arcadia, CA, 91007

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Phone :  626-218-9840


  • 2006, Bachelor of Medicine, Bachelor of Surgery with honors, Queen’s University of Belfast, Northern Ireland, UK


  • 2013-2016, Fellowship, Hematology/Oncology, LAC/USC Medical Center, Los Angeles, California


  • 2012-2013, Chief Resident, Internal Medicine, York Hospital, York, Pennsylvania
  • 2010-2013, Residency, Internal Medicine, York Hospital, York, Pennsylvania
  • 2016, American Board of Internal Medicine, Medical Oncology
  • 2016, American Board of Internal Medicine, Hematology
  • 2013, American Board of Internal Medicine, Internal Medicine
Yap KKL, Wong W, Ji L, Groshen S, Quinn DI, Bryce AH, Dorff TB. Impact of timing of administration of bone supportive therapy on pain palliation from radium-223. Cancer Treat Res Commun 2019; 18: 100114.

Yap KKL, Koc M, Lu JM, Spicer DV. Is there a role for 21-gene recurrence score in mucinous carcinoma of breast? J Clin Oncol 36, 2018 (suppl 15; abstr e12538)

Yap KKL, Tripathy D. A review of the management of T1a/bN0 HER2-overexpressed breast cancer. American Journal of Hematology and Oncology, December 2014.

Yap KKL, Kannarkatt JT, McCormick TC, Efiom-Ekaha D. Ovarian and thyroid metastases from renal cell carcinoma successfully treated with metastectomy. 11th International Kidney Cancer Symposium Poster Presentation, November 2012, Chicago, IL.

Yap KKL, Efiom-Ekaha D. Does younger women with early breast cancer have a higher recurrence risk? J Clin Oncol 29, 2011 (suppl 27; abstr 178)

Yap KKL, Efiom-Ekaha D. Is obesity associated with increased recurrence risk in estrogen receptor (ER)- positive breast cancer? J Clin Oncol 29, 2011 (suppl 27; abstr 171)

Yap KKL, Efiom-Ekaha D. Is Modified Bloom-Richardson (MBR) grade a reliable predictor of breast cancer recurrence? J Clin Oncol 29, 2011 (suppl 27; abstr 52)
  • American Society of Clinical Oncology (ASCO)
  • American Association for Cancer Research (AACR)
  • 2011, Intern of The Year
  • 2006, Medical Distinction Prize
  • 2004, Foundation Scholarship
  • 2004, Musgrave Prize in Pathology
  • 2003, Milroy Medal in Physiology
  • 2003, Henry Hutchinson Stewart Scholarship
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