Contact Us: Division of Hematology and Oncology

John L. Marshall, MD, Chief, Hematology and Oncology
Lombardi Comprehensive Cancer Center
Georgetown University
3800 Reservoir Road, NW
Washington, DC 20007
202-444-8830  General Information
877-286-1492  FAX


Contact our appointment line at 202-444-2223, Monday – Friday, 8:30 am to 5:00 pm, for the availability of your specific doctor and the type of service you require. Each physician may not be available on all days.


MedStar Georgetown University Hospital is located at 3800 Reservoir Road NW, right next to Georgetown University in Washington, D.C. The hospital is easily accessible by car or by public transportation.

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