Overview
Dr. Ellen Bellairs earned her Master of Science degree from the University of Florida and her Doctor of Medicine from the Baylor College of Medicine in Houston, TX. She then completed an internship and residency at the University of Minnesota's Department of Medicine, where she also served as Chief Resident during her residency in Radiation Oncology.
Before joining GenesisCare in 2025, Dr. Bellairs spent over 20 years with Minnesota Oncology Hematology, where she developed and led the CyberKnife program at Saint Joseph's Hospital, created a Trilogy-based IGRT and Stereotactic Radiosurgery program and established a radioimmunotherapy program for a freestanding center. She also served as Co-Medical Director of the Nassiff CyberKnife Center, where she launched a new CyberKnife radiosurgery program with focused on adult intracranial lesions, treating nearly 200 patients in its first year. Additionally, Dr. Bellairs held the role of Vice President of Radiation Oncology promoting excellence, collaboration, consistency, and a unified vision across specialties.
Dr. Bellairs treats a wide range of cancers, with particular expertise in breast, gynecologic, gastrointestinal, lung, genitourinary, and central nervous system (CNS) cancers. She is dedicated to providing exceptional care, creating personalized treatment plans, and working closely with her patients' care teams to ensure the best possible outcomes.
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Career positions
- Minnesota Oncology Hematology, PA
- Radiation Oncologist, Maplewood Cancer Center (2006 - 2025)
- Vice President, Division of Radiation Oncology (2020 - 2023)
- Co-Medical Director, Nassiff CyberKnife Center (2015 - 2022)
- Medical Director - CyberKnife Center and Radiation Medicine, Saint Joseph's Hospital (2003 - 2006)
- Radiation Oncologist, Minneapolis Radiation Oncology, Ridges Radiation Therapy (2001 - 2003)
- Radiation Oncologist, Robert and Beverly Lewis Family Cancer Care Center, CA (1998 - 2001)
Education
- Baylor College of Medicine, Houston, TX, Doctor of Medicine
- University of Florida, Gainesville, FL, Master of Science
- California State University, Chico, CA, Bachelor of Science, Magna cum laude
- University of Minnesota Department of Medicine
- Medical College of Virginia, Richmond, VA, Dietetic Internship
- University of Minnesota Department of Radiation Oncology, Chief Resident
Professional association
Awards and honors
- U.S. News & World Report, Top Doctors yearly since 2011
- Best Doctors: Minnesota Monthly Magazine, yearly since 2007
- Best Doctors for Women: Minnesota Monthly Magazine, yearly since 2007
- Distinguished Resident Award in Radiation Oncology, American Association for Women in Radiology, 1998
- Resident Research Award, ASTRO, 1997
Publications
- De novo cavernous malformation arising in the wall of vestibular schwannoma following stereotactic radiosurgery: case report and review of the literature. Nussbaum LA, Kallmes KM, Bellairs E, McDonald W, Nussbaum ES.Acta Neurochir (Wien). 2019 Jan;161(1):49-55. doi: 10.1007/s00701-018-3734-2. Epub 2018 Nov 14.https://pubmed.ncbi.nlm.nih.gov/30430258/
- Dose Gradient Index for Stereotactic Radiosurgery/Radiation Therapy. Reynolds TA, Jensen AR, Bellairs EE, Ozer M. Int J Radiat Oncol Biol Phys. 2020 Mar 1;106(3):604-611. Doi: 10.1016/j.ijrobp.2019.11.408. https://pubmed.ncbi.nlm.nih.gov/32014151/