Louis Weiner, M.D. is Director of the Lombardi Comprehensive Cancer Center at Georgetown University Medical Center, where he is the Francis L. and Charlotte G. Gragnani Chair and Professor, and Chairman of the Department of Oncology. He also serves as Director of Cancer Services at Georgetown University Hospital. He was previously Chairman of Medical Oncology and Vice President for Translational Research at the Fox Chase Cancer Center. A medical oncologist trained in research, Dr. Weiner developed and directed the medical oncology fellowship program before becoming department chairman at Fox Chase. He specializes in treating patients with cancers of the gastrointestinal system. Dr. Weiner’s laboratory and clinical research focus on new therapeutic approaches that mobilize the patient’s immune system to fight cancer using monoclonal antibodies. He has organized numerous international meetings on antibody engineering and immunotherapy, published more than 150 scientific papers, and lectures extensively on targeted therapies for cancer. Dr. Weiner earned his BA with honors in biology at the University of Pennsylvania and his MD at Mount Sinai School of Medicine of New York University in New York City. After completing his internship, residency, and chief medical residency at the University of Vermont’s Medical Center Hospital, he held clinical and research fellowships in hematology and oncology at Tufts University School of Medicine in Boston. Dr Weiner is board certified in internal medicine and medical oncology by the American Board of Internal Medicine.