John L. Marshall, MD
John L. Marshall, MD, is a global leader in the research and development of drugs for colon cancer and other GI cancers. He has been the principal investigator for over 150 clinical trials, at the local as well as national levels. Besides his role as head of the Ruesch Center, Dr. Marshall is chief of the Division of Hematology/Oncology for MedStar Georgetown University Hospital.
He is widely published in the field of clinical oncology, reviews manuscripts for eight journals, and holds peer-reviewed grants from the National Institutes of Health. Dr. Marshall's own research focuses on the development of a novel vaccine for the treatment of advanced colon cancer. For over a decade, he has directed Lombardi's Experimental Therapeutics Program while also maintaining his regular clinical practice. Seeing about 60 patients each week, Dr. Marshall specializes in cancers of the GI tract at all stages of the disease.