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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)

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International Patients

Call +1-410-502-0773 (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

Centers & Institutes

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


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)


    • American Board of Internal Medicine / Gastroenterology (1975)
    • American Board of Internal Medicine / 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 Room 925
    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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