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Photo of Dr. Anthony Kalloo

Anthony Nicholas Kalloo, MD

Chief, Division of Gastroenterology and Hepatology
Professor of Medicine
Appointment Phone


Primary 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 +1-410-502-0773 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Chief, Division of Gastroenterology and Hepatology
  • Professor of Medicine


Abdominal Pain, Clinical Gastroenterology, Colon Polyps, Digestive Diseases, Gallbladder, Gallstones, Gastroenterology, Pancreatic Cancer, Pancreatitis, Rectal Problem, Sphincter of Oddi, Stomach Pain, Stomach Ulcer

Research Interests

Natural Orifice Translumenal Endoscopic Surgery, NOTES, Pancreatitis, Sphincter of oddi, Abdominal pain


  • English

Additional Resources

Additional Resources +
  • Education +


    • Faculty of Medical Sciences ( Kingston7) (1979)


    • Howard University Hospital/Internal Medicine ( Washington DC ) (1985)


    • Veterans Affairs Medical Center/Gastroenterology and Hepatology ( Washington DC ) (1987)


    • Gastroenterology, American Board of Internal Medicine (1987)
    • Internal Medicine, American Board of Internal Medicine (1985)
  • Research & Publications +
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
  • Upcoming Events +
  • Contact & Locations +


    The Johns Hopkins Hospital
    600 N. Wolfe Street
    Sheikh Zayed Tower
    Baltimore, MD 21287
    Phone: 410-955-9697
    Appointment Phone: 410-933-7495
    Fax: 410-614-7340
    Location Map
    Johns Hopkins Medicine - Green Spring Station
    2360 W. Joppa Road
    Lutherville, MD 21093
    Phone: 410-616-7340
    Appointment Phone: 410-616-7350
    Fax: 410-616-7351
    Location Map


    • Medicine - Gastroenterology and Hepatology

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