Skip to main content
John Marshall, MD, Oncology, Washington, DC

JohnLindsayMarshallMDcoAuthor, Off Our Chests

Oncology Washington, DC

Gastrointestinal Cancer, Hematologic Oncology

CHIEF, DIVISION OF HEMATOLOGY/ONCOLOGY, MEDSTAR GEORGETOWN UNIVERSITY HOSPITAL; Chief, Division of Hematology/Oncology, Georgetown University Hospital; Associate Director, Clinical Research, Lombardi Comprehensive Cancer Center, Lombardi Comprehensive Cancer Center (LCCC), Georgetown University Hospital

Dr. Marshall is on Doximity

As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.

  • Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
  • Connect with colleagues in the same hospital or clinic.
  • Read the latest clinical news, personalized to your specialty.

See Dr. Marshall's full profile

Already have an account?

  • Office

    3800 Reservoir Rd NW
    Washington, DC 20007
    Phone+1 202-444-2223
    Fax+1 202-444-1229

Summary

  • Dr. Marshall received his training at Duke University, the University of Louisville, and Georgetown University. Dr. Marshall is an internationally recognized expert in new drug development for GI cancer, with expertise in phase I, II, and III trial design, and has served as Principal Investigator for more than one hundred clinical trials throughout his career. While he has an interest in many areas of cancer research, his primary focus is on the use of precision medicine in treating cancer. Dr. Marshall has become an outspoken advocate for GI cancer patients and the importance of clinical research participation. In 2009, he established the Otto J Ruesch Center for the Cure of GI Cancers, an organization solely focused on improving the lives of GI cancer patients through innovative research, personalized medicine, and focused advocacy. In 2015, Dr. Marshall both established and directed the Precision Oncology Alliance, a national alliance established to study the impact of molecular profiling on cancer research, value and outcomes. He currently is serving as the Oncology CMO for Indivumed, creating a global precision medicine research network.

Education & Training

  • Georgetown University Hospital
    Georgetown University HospitalFellowship, Medical Oncology, 1991 - 1993
  • MedStar Health/Georgetown-Washington Hospital Center
    MedStar Health/Georgetown-Washington Hospital CenterFellowship, Hematology and Medical Oncology, 1993
  • University of Louisville School of Medicine
    University of Louisville School of MedicineClass of 1988

Certifications & Licensure

  • VA State Medical License
    VA State Medical License 1989 - 2026
  • MD State Medical License
    MD State Medical License 1995 - 2025
  • DC State Medical License
    DC State Medical License 1992 - 2024
  • American Board of Internal Medicine Medical Oncology

Awards, Honors, & Recognition

  • CMS Meaningful Use Stage 1 Certification ARIA Medical Oncology EMR, Varian Medical Systems, 2013
  • Super Doctor SuperDoctors.com

Clinical Trials

Publications & Presentations

PubMed

Journal Articles

  • Five-Fraction Stereotactic Body Radiation Therapy (SBRT) and Chemotherapy for the Local Management of Metastatic Pancreatic Cancer  
    John Marshall, Sean Collins, Keith Unger, Aidan Burke, Marie Gurka, Michael Pishvaian, Journal of Gastrointestinal Cancer

Press Mentions

  • Oncology Unscripted with John Marshall: The Role of EMRs and Burnout in Physician Practices
    Oncology Unscripted with John Marshall: The Role of EMRs and Burnout in Physician PracticesSeptember 26th, 2024
  • KRAS Inhibitors in Pancreatic Cancer: Hope on the Horizon?
    KRAS Inhibitors in Pancreatic Cancer: Hope on the Horizon?September 9th, 2024
  • The Power of PBMs in Oncology: Unveiling the Middlemen: Oncology Update with John Marshall
    The Power of PBMs in Oncology: Unveiling the Middlemen: Oncology Update with John MarshallSeptember 5th, 2024
  • Join now to see all