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Photo of Dr. Mark Lazarev

Mark Gregory Lazarev, MD

Assistant Professor of Medicine
Appointment Phone


Main Location

The Johns Hopkins Hospital

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Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

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  • Assistant Professor of Medicine


Celiac Disease, Clinical Gastroenterology, Colitis, Colon Polyps, Crohn's Disease, Diarrhea, Digestive Diseases, Gastroenterology, Inflammatory Bowel Disease, Proctitis, Ulcerative Colitis


  • English
Additional Resources +
  • Education +


    • University of Pittsburgh School of Medicine (Pittsburgh PA ) (2002)


    • Beth Israel Deaconess Medical Center / Internal Medicine (Boston MA ) (2005)


    • Mount Sinai Medical Center / Gastroenterology (New York NY ) (2009)
    • University of Pittsburgh School of Medicine / Gastroenterology (Pittsburgh PA ) (2008)


    • Gastroenterology, American Board of Internal Medicine (2008)
    • Internal Medicine, American Board of Internal Medicine (2005)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +


    Inflammatory Bowel Disease: Improving Quality of Life

    Mark Lazarev, MD, Assistant Professor of Medicine, Johns Hopkins Gastroenterology & Hepatology, discusses how people living with IBD can improve their overall quality of life with diet changes and medication management. For more information:

    Video Links

  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Sheikh Zayed Tower
    Baltimore, MD 21287
    Appointment Phone: 410-933-7495
    Location Map
    Johns Hopkins Gastroenterology and Hepatology - Howard County
    10700 Charter Drive
    Charter Medical Building
    Columbia, MD 21044
    Appointment Phone: 410-715-0350
    Location Map
    Johns Hopkins Medicine - Green Spring Station
    2360 W. Joppa Road
    Lutherville, MD 21093
    Phone: 410-616-7350
    Appointment Phone: 410-616-7350
    Location Map


    • Medicine - Gastroenterology and Hepatology

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