Stephen M. Hahn is the Chair and Henry K. Pancoast Professor of Radiation Oncology at the University of Pennsylvania School of Medicine

University of Pennsylvania School of Medicine

The Perelman School of Medicine , formerly the University of Pennsylvania School of Medicine, was founded in 1765, making it the oldest American medical school. As part of the University of Pennsylvania, it is located in the University City section of Philadelphia, Pennsylvania. It is widely...

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As a radiation and medical oncologist, as well as an NIH-funded researcher, Hahn brings his many skills and talents to lead one of the nation’s foremost academic radiation oncology departments. He is an active clinician, with particular expertise in treating lung and genitourinary cancer

Cancer

Cancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the...

s and in the use of photodynamic therapy

Photodynamic therapy

Photodynamic therapy is used clinically to treat a wide range of medical conditions, including malignant cancers, and is recognised as a treatment strategy which is both minimally invasive and minimally toxic...

. As Vice Chair for Research for the department of radiation oncology and Principal Investigator of National Cancer Institute grants, Hahn has led the expansion of the department’s research base, which has consistently ranked first or second in NIH funding.

Prior to joining Penn in 1996, Hahn was a medical and radiation oncologist in Santa Rosa, California. From 1993-95, he served as chief of the National Cancer Institute’s Prostate Cancer Clinic, Clinical Pharmacology Branch, in Bethesda, Maryland, and as a senior investigator at the NCI

NCI

NCI can stand for:*National Cancer Institute*National Captioning Institute*Nordic Centre in India*National College of Ireland*Native Communications Inc - Aboriginal Public Broadcaster in Manitoba, Canada....

. Hahn also served as a commander in the NCI’s U.S. Public Health Service from 1989-95. A long-standing member of the American Society of Clinical Oncology

American Society of Clinical Oncology

The American Society of Clinical Oncology is the world's leading professional organization representing physicians of all oncology subspecialties who care for people with cancer. Founded in 1964 by Drs...

, Hahn is also an active member of the Radiation Research Society, the American Society of Photobiology, the American Association for Cancer Research

American Association for Cancer Research

The American Association for Cancer Research is the world's oldest and largest professional association to advancing cancer research. Based in Philadelphia, AACR focuses on all aspects of cancer research including basic, clinical and translational research into the etiology, prevention, diagnosis,...

, and the University’s John Morgan Society.