Dr. Coleman graduated from the University of Vermont with a B.A. in mathematics, and then graduated from Yale University School of Medicine in 1970. He completed his internship and residency in internal medicine at the University of California in San Francisco, and medical oncology at the NCI and radiation oncology at Stanford. Board certified in internal medicine, medical oncology and radiation oncology, Dr. Coleman was a tenured faculty member at the Stanford University School of Medicine before joining Harvard Medical School in 1985 as Fuller-American Cancer Society Professor and Chairman, Joint Center for Radiation Therapy. In 1999, he came to the NCI and became director of the new Radiation Oncology Sciences Program that he created to coordinate all radiation oncology activities. He served as chief of the Radiation Oncology Branch from 1999- 2004 and is now an adjunct member of ROB. He serves the NCI as associate director of the Radiation Research Program (in DCTD), and special advisor to the director of the NCI. Since 2004 he has been Senior Medical Advisor and chief of the CBRN Team in the Office of Preparedness and Emergency Operations (OPEO), Office of Assistant Secretary for Preparedness and Response (ASPR), HHS. He has written extensively in the fields of radiation modifiers and, more recently, on preparedness and planning for radiological or nuclear emergencies. He received the 2011 Service to America Homeland Security Medal.