Stephen M. Hahn, MD is the Chair and Henry K. Pancoast Professor of Radiation Oncology at the Perelman School of Medicine at the University of Pennsylvania. Dr. Hahn is an active clinician, with particular expertise in treating patients with lung, sarcoma and prostate cancers and in the use of proton therapy. Board certified in Internal Medicine and Radiation Oncology of Medicine Hahn received his medical degree from Temple University School of Medicine. In 1987, he completed his residency and served as Chief Resident of Internal Medicine at the University of California, San Francisco. He completed a Medical Oncology Fellowship and a Radiation Oncology Residency at the NCI in 1991 and 1994 respectively. Prior to joining Penn, Hahn was a Medical and Radiation Oncologist in Santa Rosa, CA. From 1993-95, he served as Chief of the NCI’s Prostate Cancer Clinic, Clinical Pharmacology Branch, in Bethesda, MD, and a senior investigator at the NCI. Hahn also served as a Commander in the NCI’s U.S. Public Health Service from 1989-95.
Dr. Hahn joined Penn in 1996 and was promoted to Associate Professor of Radiation Oncology and Medical Oncology in 2001. Dr. Hahn’s research interests include investigation of the tumor microenvironment as it relates to radiation response, the integration of targeted agents with chemoradiotherapy, photodynamic therapy particularly in thoracic malignancies, the investigative use and value of proton therapy, and the assessment of the effect of quality and safety programs in radiation oncology. Dr. Hahn is the Co-Program Leader of the Radiation Biology and Imaging Research Program in the Abramson Cancer Center of the University of Pennsylvania.
Hahn served as a permanent member of the National Cancer Institute’s Clinical Oncology Study Section from 2008-2011. He currently serves as a Senior Editor of Clinical Cancer Research and is a long standing member of the American Society for Radiation Oncology, the American Society of Clinical Oncology, the Radiation Research Society, the American Society of Photobiology, the American Association for Cancer Research, and the University of Pennsylvania’s John Morgan Society. He was elected to serve a four year term as a Trustee of the American Board of Radiology in 2013 and became a Fellow of the American Society for Radiation Oncology (FASTRO).