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
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
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, Mass 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, Mass General Hospital.
Anthony Zietman, MD, FASTRO
Director, Harvard Radiation Oncology Residency Program
Jenot and William Shipley Professor of Radiation Oncology, Harvard Medical School
MD, London University; Residency, Mass General Hospital, Harvard Medical School, and Middlesex Hospital Medical School, London.
Danielle Le Hals, MPH
Executive Director, Radiation Oncology
BS, MIT; MPH, University of California, Berkeley, School of Public Health; Administrative Fellowship, Mass General Hospital.
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.
Tiffany Koolakian, MBA, RTT
Administrative Director, Finance and Business Operations, Radiation Oncology
BS, University of Vermont; MBA, Simmons College.
Kathy A. Bruce, MBA, RT (R,T)
Director of Clinical Business Development and Strategy, Radiation Oncology
BA, Suffolk University; MBA, Simmons College.
Greg Conklin, RN, MSN
Nursing Director, Radiation Oncology
BSN, Northeastern University; MSN, Salem State University.
Brian Napolitano, MHL, CMD
Director of Medical Dosimetry, Radiation Oncology
BS, Biological Sciences, State University of New York at Binghamton; MHL, Healthcare Leadership, Brown University.
Kelly Seybolt, MS, RTT
Senior Director of Radiation Therapy, Radiation Oncology
BS, Radiation Biology, Suffolk University; MS, Radiologic Science - Management Track, Thomas Jefferson University.