Joanne B. Weidhaas, MD, PhD, MS
Accepting new patients

Joanne B. Weidhaas, MD, PhD, MS

  • Radiation Oncology
Westwood Radiation Oncology | 200 Medical Plaza, Suite B265, Los Angeles, CA 90095


Dr. Weidhaas comes to UCLA from Yale Cancer Center where she has specialized in women's health, as head of the Breast and Gynecological services during her tenure there. She has successfully sustained NIH grant funding in microRNAs, and her laboratory works to best define the applications of microRNAs in personalized medicine. Dr. Weidhaas is a leader in translational research and holds several patents, is a co-founder of MiraDX, a molecular diagnostics company, and a founder of MiraKind, a non-profit focused on advancing the application of microRNA discoveries for cancer prevention. She is a frequently invited speaker to medical conferences throughout the world. Dr. Weidhaas attended Yale University as an undergraduate, Tufts Medical School to earn her MDPhD, completed residency training at Memorial Sloan-Kettering Cancer Center, and most recently earned a Masters in Business Management at the Stanford Business School.




Medical Board Certification

Radiation Oncology, American Board of Radiology, 2005


Radiation Oncology, Memorial Sloan-Kettering Cancer Center, 2004


Internal Medicine, Carney Hospital, 2000


MS, Stanford Graduate School of Business, 2013
PhD, Tufts University School of Medicine, 1999
MD, Tufts University School of Medicine, 1999

Hospital Affiliations

Ronald Reagan UCLA Medical Center

UCLA Santa Monica Medical Center


  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • L.A. Care
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • UnitedHealthcare

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