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Mark Donowitz, MD

Mark Donowitz, MD
Director, Hopkins NIH/NIDDK Conte Core Center
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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  • Director, Hopkins NIH/NIDDK Conte Core Center
  • GI Division, Director of Basic Research
  • Professor of Medicine
  • Professor of Physiology

Centers & Institutes

  • Conte Digestive Diseases Basic and Translational Research Core Center
  • Epithelial Disorders, Center for


Clinical Gastroenterology, Diarrhea, Diarrheal Disease, Digestive Diseases, Gastroenterology, Short Bowel Syndrome

Research Interests

Use of human enteroids to understand intestinal physiology and pathophysiology; Development of drug therapy for diarrheal disorders; Intestinal Salt Absorption and the proteins involved including their regulation


  • English


Member, AAAS
American Gastroenterogical Association
American Physiological Society
Interurban Clinical Club

Additional Resources

Additional Resources +
  • Education +


    • Johns Hopkins University School of Medicine (Baltimore MD ) (1968)


    • Gastroenterology, American Board of Internal Medicine (1975)
    • Internal Medicine, American Board of Internal Medicine (1972)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +

    Professional Activities

    President American Gastroenterological Association, 2006-2007
    President, Gastoenterology Research Group
    President, Interurban Clinical Club
  • Videos & Media +
  • Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Ross Research Building
    Baltimore, MD 21287
    Phone: 410-955-9675
    Appointment Phone: 410-933-7495
    Fax: 410-955-9677
    Location Map


    • Medicine - Gastroenterology and Hepatology

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