Dr. John L. Marshall, MD

Dr. John L. Marshall is a medical oncologist and a leader in the development of drugs for colon cancer and other gastrointestinal cancers. He is Chief of Hematology and Oncology at the Georgetown Lombardi Comprehensive Cancer Center and MedStar Georgetown University Hospital.

In 2009 he became the founding director of the Otto J. Ruesch Center for the Cure of Gastrointestinal Cancers. He has been principal investigator on more than 150 clinical trials.

John Marshall Profile

• Full Name: John L. Marshall, MD
• Specialty: Gastrointestinal cancers, medical oncology
• Institution: Georgetown Lombardi Comprehensive Cancer Center / MedStar Georgetown University Hospital
• Positions: Chief, Hematology and Oncology; Director, Otto J. Ruesch Center for the Cure of Gastrointestinal Cancers
• Academic Title: Professor of Medicine and Oncology
• Primary Listed Location: Washington, D.C.

Education & Training

• Research Leadership: Principal investigator of more than 150 clinical trials
• Program Leadership: Founding director, Ruesch Center for the Cure of Gastrointestinal Cancers (2009)
• Research Interest: Novel vaccine for advanced colon cancer
• Additional Roles: Directed the Lombardi Developmental Therapeutics Program

Clinical Focus

Dr. Marshall’s public biographies describe a practice covering gastrointestinal cancers at all stages, including:

• Colon and rectal cancer
• Gastric (stomach) cancer
• Esophageal cancer
• Pancreatic and bile duct cancer
• Liver cancer
• Neuroendocrine tumors and GIST
• Anal and small intestine cancers

Practice Locations

Georgetown Lombardi Comprehensive Cancer Center

Podium A, 3800 Reservoir Road NW, Washington, DC 20007

Insurance

Insurance participation varies by location and can change. Contact the practice or your insurance company to confirm coverage before scheduling an appointment.

Frequently Asked Questions

What does Dr. John Marshall specialize in?

Dr. Marshall specializes in gastrointestinal cancers, especially colon cancer, and in developing new treatments through clinical trials.

Where does Dr. Marshall practice?

He practices at Georgetown Lombardi Comprehensive Cancer Center and MedStar Georgetown University Hospital in Washington, D.C.

What is the Ruesch Center?

The Otto J. Ruesch Center for the Cure of Gastrointestinal Cancers at Georgetown Lombardi combines molecular medicine, translational research, and patient-centered care. Dr. Marshall is its founding director.

Find MD Health Disclaimer

Provider location, specialty information, insurance participation, and availability may change. Confirm current details directly with Georgetown Lombardi Comprehensive Cancer Center.