John Lindsay Marshall, MD| Gastrointestinal Medical Oncology, Medical Oncology | MedStar Health

John Lindsay Marshall, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (202 reviews)

Specialities: Gastrointestinal Medical Oncology, Medical Oncology

Languages: English

202-444-1229

About me

Chief, Hematology and Oncology
Professor of Medicine and Oncology
Director, Otto J Ruesch Center for the Cure of Gastrointestinal Cancers
Lombardi Comprehensive Cancer Center Georgetown University

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.

Dr. Marshall's passion for medicine began at an early age when, at 14, he lost his mother to non-Hodgkin lymphoma and dedicated himself to becoming a doctor and helping find a cure for cancer. His deep care for his patients and his warm humor help Dr. Marshall develop strong doctor-patient relationships. He counts the relationships with his patients as one of the most gratifying parts of his job.

In 2006, he acquired the additional perspective of being a caregiver for a cancer patient as his wife, Liza, was diagnosed with an aggressive form of breast cancer and underwent nine months of treatment. In 2021, he and his wife published their first book, “Off Our Chests,” exploring the world of cancer medicine and the impact of a cancer diagnosis on patients, caregivers, and cancer professionals.

Dr. Marshall lives in Arlington, Virginia, with his wife.

About MedStar Georgetown Cancer Institute
MedStar Georgetown is part of the MedStar Georgetown Cancer Institute, which combines medical expertise, the latest therapies, and research across MedStar Health. Our research engine, the Georgetown Lombardi Comprehensive Cancer Center, is the only National Cancer Institute-designated comprehensive cancer center in the Washington, D.C., region. This partnership means we provide access to cutting-edge clinical trials and the latest breakthroughs in cancer care.

Clinical areas of focus

  • Colorectal Malignancy
  • Esophageal Cancer
  • Gastrointestinal Gi Cancer
  • Gastrointestinal Gi Stromal Tumors
  • Hepatoblastoma
  • Liver Cancer
  • Liver Metastases
  • Pancreas Cancer
  • Rectal Cancer
  • Small Bowel Cancer
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Conditions and procedures

Conditions I treat

  • Anal Cancer
  • Anorectal Cancer
  • Appendiceal Cancer
  • Bile Duct Mass
  • Carcinoid Of Stomach
  • Carcinoid Tumor
  • Carcinoid Tumor Of Pancreas
  • Cholangiocarcinoma
  • Colorectal Malignancy
  • Cystadenoma Of Pancreas
  • Esophageal Cancer
  • Gallbladder Cancer
  • Gastrin Secreting Tumor Of Pancreas
  • Gastroesophageal Junction Cancer
  • Gastrointestinal Gi Cancer
  • Gastrointestinal Gi Stromal Tumors
  • Hepatobiliary Malignancies
  • Hepatoblastoma
  • Insulinoma
  • Islet Cell Tumor
  • Liver Cancer
  • Liver Metastases
  • Lynch Syndrome
  • Malignant Carcinoid Tumor Of Colon
  • Malignant Neoplasm Of Pancreatic Duct
  • Malignant Rectal Neoplasm
  • Malignant Tumor Of Extrahepatic Bile Duct
  • Metastatic Colon Cancer
  • Neuroendocrine Tumors
  • Pancreas Cancer
  • Pancreas Head Cancer
  • Pancreas Tail Cancer
  • Pancreatic Mass
  • Pseudomyxoma Peritonei
  • Rectal Cancer
  • Rectal Carcinoma In Situ
  • Recurrent Colorectal Cancer
  • Small Bowel Cancer
  • Stomach Cancer
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Procedures I perform

  • Biologic Therapy For Gastrointestinal Diseases
  • Cancer Chemotherapy
  • Cancer Immunotherapy
  • Chemoradiation
  • Colon Cancer Chemotherapy
  • Gastrointestinal Gi Cancer Genomics
  • Liver Cancer Genomics
  • Pancreatic Cancer Genomics
  • Rectal Cancer Genomics
  • Stomach Cancer Genomics
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Practice locations

Distance from Change LocationEnter your Location

3800 Reservoir Road Northwest
Washington, DC, 20007

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miles away

Videos

Education

Board Certification: American Board of Internal Medicine, Medical Oncology

Fellowship Program: MedStar Georgetown University Hospital (1993)

Residency Program: MedStar Georgetown University Hospital (1991)

Internship Program: MedStar Georgetown University Hospital (1989)

Medical School: University of Louisville (1988)

Awards

    • 2008-present―Director, Otto J. Ruesch Center for the Cure of Gastrointestinal Cancers, Georgetown University
    • 1998-present—Director, Gastrointestinal Oncology, Lombardi Comprehensive Cancer Center
    • 2020— Team Science Award, The Society for Immunotherapy of Cancer
    • 2019―Edward M. Kovach Cura Personalis Award, Georgetown University
    • 2019—Waun Ki Hong MD Memorial Lecture, Yonsei Song-dang Institute for Cancer Research, Seoul, Korea
    • 2017—Nobility in Science Award, National Pancreas Foundation
    • 2016―Educator of the Year Award, Physicians’ Education Resource®, LLC (PER®)
    • 2015-2019―Director, Caris Life Sciences, Precision Oncology Alliance
    • 2014-present—Founding director, GI Cancer Alliance Network
    • 2008-2019― America's Top Doctors for Cancer, Castle Connolly Medical Ltd
    • 2008-2009—President, International Society of GI Oncology
    • 2001―Gallo Award for Outstanding Clinical Research, The Cancer Institute of New Jersey
    • 1992―American Cancer Society Fellow

Ratings and reviews

  • Provider explained things understandably

    4.9
  • Provider listened carefully

    4.9
  • Provider gave easy to understand instructions

    4.9
  • Provider knew medical history

    4.9
  • Provider showed respect

    5.0
  • Provider spent enough time with patient

    4.9
  • Oct 14, 2021

    The resident was very thorough in her questioning, examination and providing feedback.

  • Oct 14, 2021

    Dr. Marshall is always great when discussing my condition. He was always very good at listening and acting upon my concerns and worries. Now, at my nine month anniversary of my end of chemotherapy/proton radiation regimen, he is continuing to provide great care and concern for my continued cancer-free' diagnosis. He is truly an incredible doctor and care-giver who assisted me through my pancreatic cancer treatment, including whipper surgery, radiation and chemotherapy all during COVID-19 restrictions and requirements. I feel that my future health care needs and concerns are in very capable hands at Georgetown University Hospital.

  • Sep 23, 2021

    Dr Marshall is phoneminal!! He listened and addressed and answered concerns. Even addressed MDA's Dr concern!! He caught an infection early on in Chemo!!