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Sara Alcorn, M.D., Ph.D., M.P.H.

Sara Rachel Alcorn, M.D., Ph.D., M.P.H.

  • Clinical Director, Department of Radiation Oncology, Johns Hopkins Hospital Campus
  • Assistant Professor of Radiation Oncology and Molecular Radiation Sciences

Languages: English, Spanish


Breast Cancer, External Beam Radiation Therapy, Image-Guided Radiation Therapy, Metastatic Bone Disease, Prone Breast Radiation, Radiation Oncology, Sarcoma, Stereotactic Radiosurgery more

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Johns Hopkins Sidney Kimmel Comprehensive Cancer Center

Appointment Phone: 410-502-8000
401 N. Broadway
Baltimore, MD 21231 map

Johns Hopkins Medicine - Green Spring Station

Appointment Phone: 410-502-8000
10753 Falls Road
Pavilion II Suite 145
Lutherville-Timonium, MD 21093 map


Dr. Sara Alcorn specializes in the treatment of breast tumors and sarcomas, as well as the delivery of palliative radiotherapy and total body irradiation for bone marrow/stem cell transplants. She is also the Clinical Director for the Department of Radiation Oncology at the Johns Hopkins Hospital primary campus.

She received her undergraduate degree from Cornell University in Biological Sciences and Sociology. She attended medical school at Harvard University, where she also earned a Master in Public Health. Dr. Alcorn completed residency in Radiation Oncology at the Johns Hopkins Hospital, where she served as the chief resident during her fifth year of oncology training. After residency, she also earned a Ph.D. in Clinical Investigation at the Johns Hopkins Bloomberg School of Public Health.

Dr. Alcorn focuses her research on the improvement of clinical outcomes and quality of life in the management of breast cancer, sarcomas, and palliative radiotherapy. She has investigated imaging techniques that improve accuracy of radiation delivery to sites including breast and sarcoma, risk factors associated with side effects from breast radiotherapy, means for improving treatment of painful bone tumors, and the role of spirituality at the end of life. Her current research efforts aim to incorporate patient preference and data collection from past patients to better inform the treatment of future patients, with the goal of advancing individualized medicine. She is also working on a system to better characterize radiation skin reactions across the spectrum of skin tones. Dr. Alcorn is actively involved in clinical trials for breast cancer, sarcomas, and palliative radiotherapy. 

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  • Clinical Director, Department of Radiation Oncology, Johns Hopkins Hospital Campus
  • Assistant Professor of Radiation Oncology and Molecular Radiation Sciences

Departments / Divisions



  • MD; Harvard Medical School (2010)


  • Radiation Oncology; Johns Hopkins University School of Medicine (2015)

Board Certifications

  • American Board of Radiology (Radiation Oncology) (2017)

Research & Publications

Activities & Honors


  • Young Investigator Award, International Society of Paediatric Oncology Annual Congress, 2014 - 2014
  • Excellence in Patient Care Award, Miller-Coulson Academy, Johns Hopkins Medicine, 2015 - 2015
  • KL2 Mentored Career Development Grant, 2015-2018, National Institutes of Health and Johns Hopkins University, 2015 - 2016
  • Teaching Award, Sidney Kimmel Comprehensive Cancer Center, 2018
  • Educator of the Year at Johns Hopkins Hospital, Association of Residents in Radiation Oncology (ARRO), 2019
  • Rising Star Award, Society of Palliative Radiation Oncology, 2019
  • Research Grant for Improving Diversity and Inclusion in Radiation Oncology, Radiation Oncology Institute, 2020
  • Theodore L. DeWeese, M.D. Award for Innovative Research, Johns Hopkins Hospital, 2021


  • American Society of Therapeutic Radiation Oncology
  • American Society of Clinical Oncology
  • International Society of Paediatric Oncology, Young Investigator Steering Committee
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