Heather L. McArthur, MD, MPH

Medical Director, Breast Oncology

Heather L. McArthur, MD, MPH

Cedars-Sinai Medical Center
8700 Beverly Blvd
Los AngelesCA





Samuel Oschin Comprehensive Cancer Institute
127 S San Vicente Blvd
Fl 7
Los AngelesCA

Heather L. McArthur, MD, MPH

Medical Director, Breast Oncology

  • IM/Hematology/Oncology

Breast Cancers

Heather L McArthur, MD, attended medical school at the University of Toronto, completed medical oncology training at the University of British Columbia and earned a masters in public health from Harvard University. She was awarded a Canadian grant which funded an advanced clinical breast cancer research fellowship at Memorial Sloan Kettering Cancer Center in New York. As faculty at Memorial Sloan Kettering Cancer Center, with an academic appointment at Cornell University Medical College between 2010-16, she developed a research program focusing on immunotherapy strategies in breast cancer and mentored many medical students, residents, fellows, and junior faculty in the conduct and reporting of several studies—two of which directly informed national (NCCN) treatment guidelines. She has served on the Conquer Cancer Foundation of American Society of Clinical Oncology (ASCO) YIA/CDA Grants Selection Committee, the ASCO Breast Cancer Symposium Program Committee, a National Cancer Institute (NCI) Breast Cancer Steering Committee Working Group, a NCI-Breast Cancer Steering Committee Immuno-Oncology Working Group, a NCI Breast Cancer Immuno-Oncology Task Force, a Breast International Group (BIG) Immunotherapy Taskforce, and an Alliance Immunotherapy/Immune Monitoring Working Group. Dr. McArthur has served as a faculty member of the ASCO Annual Meeting; been a reviewer for many journals including Science, the New England Journal of Medicine, and Cancer; and has written more than 60 articles, review articles, invited commentaries, and book chapters on breast cancer. She joined Cedars-Sinai in 2016, as the medical director of Breast Oncology where she continues to investigate immune therapy and related strategies for the treatment of breast cancer.

  • Undergraduate: University of British Columbia, 1997
  • Medical School: University of Toronto School of Medicine, 2001
  • Master's: Harvard University, 2008

Click here for a list of peer-reviewed publications.


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