Corey J. Langer M.D. Thoracic Oncology Penn Medicine Abramson Cancer Center 3400 Spruce St. Philadelphia, PA 19104 (215) 662-7366 www.pennmedicine.org Corey J. Langer, M.D., is director of thoracic oncology at the University of Pennsylvania Abramson Cancer Center in Philadelphia, which utilizes the most up-to-date technology and some of the world's most cutting-edge therapies for its patients. Get Financial Assistance for Treatments