Dr. Hellman served as Dean and A. N. Pritzker Professor of the Division of Biological Sciences and the Pritzker School of Medicine and Vice President for the Medical Center from July 1988 to June 1993. He was Physician-in-Chief of the Memorial Sloan Kettering Hospital for Cancer and Allied Diseases from 1983-1988. He concurrently held the Benno C. Schmidt Chair in Clinical Oncology at Memorial Sloan-Kettering Cancer Center. In addition, Dr. Hellman was Professor of Radiation Oncology at Cornell University Medical College from 1984-1988. Before joining Sloan-Kettering, Dr. Hellman served as Chairman of the Department of Radiation Therapy at the Harvard Medical School where he was the Alvin T. and Viola D. Fuller American Cancer Society Professor. He was Director of the Joint Center for Radiation Therapy at the Harvard Medical School. During the same period, he served simultaneously as chief or director of radiation therapy at a number of major hospitals in Boston. Dr. Hellman has been active in both clinical and laboratory investigation. He has been involved in studies of breast cancer, prostate cancer and lymphoma. The breast cancer studies are of conservative management and the natural history of regionally treated disease. Both of these studies emphasize the importance of understanding the clinical evolution of the disease in order to develop effective multidisciplinary therapy.
The laboratory investigations center on the cell kinetics of the hematopoietic system. He is the author or co-author of some 262 scientific articles in his field and co-editor of the standard textbook on cancer, Cancer: Principles and Practice of Oncology. He also is co-editor of The Cancer Journal from Scientific American. Dr. Hellman served as Chairman of the Board of Allegheny College (1987-1993), where he received his BS degree Magna Cum Laude in 1955. He is a Fellow of the Institute of Medicine of the National Academy of Sciences and a Fellow of the American Association for the Advancement of Science. Dr. Hellman is a member of the Board of Directors of Varian Associates, Inc., and of the Board of Trustees and the Executive Committee of The Brookings Institution. He received the 1980 Richard and Hinda Rosenthal Foundation Award for Clinical Research of the American Association of Cancer Research. He received an honorary Doctor of Science degree from Allegheny College and from the State University of New York Health Sciences at Syracuse (SUNY). He is an honorary Member of the Canadian Association of Radiologists and the recipient of both the Medal of the City of Paris and of the University of Helsinki. Dr. Hellman has served as president of both the American Society for Therapeutic Radiology and Oncology and the American Society of Clinical Oncology. He is the recipient of the Gold Medals of both the American Society of Therapeutic Radiology and Oncology and the del Regato Foundation. Dr. Hellman is also the recipient of the American Society of Therapeutic Radiology and Oncology Centennial Hartman Orator Medal and the Claudius Regaud Medal of the European Society for Therapeutic Radiology and Oncology.