Department of Radiation Oncology Leadership

Read More About The Department of Radiation Oncology

Our staff physicians are all faculty at Harvard Medical School and include some of the world's most knowledgeable and skilled radiation oncologists.

  • Jay Loeffler, MD, FACR

    Jay Loeffler, MD, FACR

    Chief, Radiation Oncology
    Herman and Joan Suit Professor of Radiation Oncology, Harvard Medical School

    MD, Brown University School of Medicine; Residency, Joint Center for Radiation Therapy, Harvard Medical School.

  • Paul Busse, MD, PhD

    Paul Busse, MD, PhD

    Clinical Director, Radiation Oncology
    Director, Head and Neck Service
    Associate Professor, Department of Radiation Oncology, Harvard Medical School

    MD, St. Louis University School of Medicine; PhD, St. Louis University School of Medicine; Residency, Massachusetts General Hospital.

  • Helen Alice Shih, MD

    Medical Director, MGH Proton Therapy Centers
    Director, CNS Service
    MGH Associate Program Director - Harvard Radiation Oncology Residency Program

    MD, University of Pennsylvania School of Medicine; Residency, Massachusetts General Hospital.

  • Anthony Zietman, MD, FASTRO

    Anthony Zietman

    Director, Harvard Radiation Oncology Residency Program
    Jenot and William Shipley Professor of Radiation Oncology, Harvard Medical School

    MD, London University; Residency, Massachusetts General Hospital, Harvard Medical School, and Middlesex Hospital Medical School, London.

  • Danielle Le Hals, MPH

    Danielle Le Hals

    Executive Director, Radiation Oncology

    BS, MIT; MPH, University of California, Berkeley, School of Public Health; Administrative Fellowship, Massachusetts General Hospital.

  • Thomas Bortfeld, PhD

    Thomas Bortfeld, PhD

    Chief of Physics, Radiation Oncology
    Professor, Harvard Medical School

    MS (Diploma): University of Heidelberg, Germany, 1988, Physics; PhD: University of Heidelberg , Germany, 1990, Applied Physics; Habilitation: University of Heidelberg, Germany, 1995, Physics; Fellow, The Institute of Physics, 2004; Fellow, American Association of Physicists in Medicine, 2009.

  • Kathy A. Bruce, MBA, RT (R,T)

    Kathy A. Bruce

    Director of Clinical Business Development and Strategy, Radiation Oncology

    BA, Suffolk University; MBA, Simmons College.

  • Greg Conklin, RN, MSN

    Greg Conklin

    Nursing Director, Radiation Oncology

    BSN, Northeastern University; MSN, Salem State University.

  • Brian Napolitano, MHL, CMD

    Brian Napolitano

    Director of Medical Dosimetry, Radiation Oncology

    BS, Biological Sciences, State University of New York at Binghamton; MHL, Healthcare Leadership, Brown University

  • Christine Cerrato, RTT

    Christine Cerrato, RTT

    Co-Director of Radiation Therapy, Radiation Oncology

    BS, Radiation Biology, Suffolk University.

  • Kelly Seybolt, MS, RTT

    Kelly Seybolt

    Co-Director of Radiation Therapy, Radiation Oncology

    BS, Radiation Biology, Suffolk University; MS, Radiologic Science - Management Track, Thomas Jefferson University.