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Peter Y Chen, MD

Peter Y. Chen, MD is a graduate of the University of Illinois College of Medicine (Chicago). He is board-certified in both internal medicine and radiation oncology. Completing his internal medicine residency at Beaumont, immunology-allergy fellowship at Northwestern University and residency/fellowship in radiation oncology at the University of Michigan, he has keen clinical/research interest in the Breast Radiation Oncology Service, co-chairs the head and neck tumor board, and actively treats patients in both the Beaumont Gamma Knife and Proton Therapy Centers. He is a Professor of Radiation Oncology at the Oakland University William Beaumont School of Medicine (OUWBSOM). He also serves as the Chair of the Committee of Appointments, Promotion and Tenure. He has clinical subsite expertise in breast cancer (particularly accelerated partial breast irradiation (APBI), head and neck malignancies, CNS tumors (including stereotactic radiosurgical treatment using Gamma Knife), and pediatric-adolescent neoplasms. As a Fellow of the American College of Radiology (FACR) and 2018 inductee as a Fellow of the American Society for Radiation Oncology (FASTRO), he has contributed to many national research committees, chaired scientific panels on cutting-edge topics including the impact of genomics along with immunotherapy on the practice of breast oncology, leads clinical trials in shortened course hypo-fractionation for partial breast irradiation, and continues to contribute to the literature of radiation oncology not only as a lead author/coauthor of original articles/book chapters but also a manuscript reviewer of major peer-reviewed oncology journals. In recognition for his contributions to the specialty of Radiation Oncology, he has been honored with selection to the Best Doctors in America (2007-present), Hour Detroit Magazine’s Top Docs (2009-present) and Castle Connolly Top Doctors annually since 2016.


  • University of Michigan Hospitals and Health Centers
    Fellowship, Radiation Oncology, 1986
  • The Ohio State University Wexner Medical Center
    Residency, Radiation Oncology, 1984
  • Northwestern Memorial Hospital
    Fellowship, Immunology, 1982
  • Beaumont Hospital, Royal Oak
    Residency, Internal Medicine, 1981
  • University of Illinois College of Medicine at Peoria
    Medical School, 1978

Board Certifications

  • Therapeutic Medical Physics
    American Board of Radiology, 1986
  • Internal Medicine
    American Board of Internal Medicine, 1983


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