Gravesend 260 Ave X
Brooklyn, NY 11223
(718) 336-8855
Flatbush 770 Flatbush Ave
Brooklyn, NY 11226
(347) 627-3988
Downtown Brooklyn 200 Livingston Street
Brooklyn, NY 11201
(718) 522-3399
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Alexander Brun, MD – Brooklyn Gastroenterologist

Alexander Brun, MD | gastroenterologist Brooklyn

Alexander Brun, MD
Locations in Brooklyn
Sheepshead Bay, Flatbush, Downtown

Alexander Brun, MD

Board Certified in Gastroenterology

  • 07/05-05/09
    SUNY Downstate College of Medicine, Brooklyn, NY
    Doctor of Medicine, May 2009
  • 09/01-05/05
    New York University, New York, NY
    Bachelor of Arts in Economics, May 2005

  • 07/12-present Hofstra North Shore-LIJ School of Medicine, New Hyde Park, NY 3rd yr. Gastroenterology Fellow, Chief Administrative Fellow Expected Graduation Date: June 30, 2015
  • 07/09-06/12 Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ Resident, Internal Medicine Residency Program


  • Trindade AJ, Brun A, Vamadevan AS, Sideridis K, Sejpal DV, Mayo PH, Khanijo S, Koenig SJ. Use of bedside transabdominal US in facilitating emergent intensive care unit ERCP without fluoroscopy (with video). Gastrointest Endosc. 2014 Nov 18. pii: S0016-5107(14)02204-4. doi: 10.1016/j.gie.2014.09.025
  • Sultan K, Brun A, Spyropoulos AC. Venous Thromboembolism Risk in Patients With Inflammatory Bowel Disease: Defining the Benefits of Pharmacologic Prophylaxis. Clinical Gastroenterology and Hepatology. 2014 Apr 1. pii: S1542-3565(14)00475-3
  • Brun A, Pitchumoni CS, Biliary Diseases in HIV. Practical Gastroenterology. 2010 Sept; 36 (9): 24-32
  • Brun A, Agarwal N, Pitchumoni CS. Fluid Collections in and Around the Pancreas. Journal of Clinical Gastroenterology. 2011 Aug; 45 (7): 614-625
  • Brun A, Gidwaney N, Pitchumoni CS. Prognosis in Acute Pancreatitis. Practical Gastroenterology 2012 Mar 36(3): 16-41
  • Pitchumoni C.S. and Brun A. (2012) Upper and Lower Gastrointestinal Bleeding. In C.S Pitchumoni, T. S. Dharmarajan (Eds), Geriatric Gastroenterology (pp.363-374). New York: Springer
  • Pitchumoni C.S. and Brun A. (2012) HIV Disease. In C.S Pitchumoni, T.
    S. Dharmarajan (Eds), Geriatric Gastroenterology (pp.659-666). New
    York: Springer


  • Research Project, North Shore-LIJ Hofstra School of Medicine
    Prospectively study to address issues of safety and effectiveness of pharmacologic venous thromboembolism prophylaxis in a study specifically of IBD patients.
    Status: IRB approval, Grant submitted to Crohn’s and Colitis Foundation of America
    Mentors: Keith Sultan MD, Alex Spyropoulus MD
  • 06/07-09/07 Research Project, SUNY Downstate
    Examined the effect of prenatal cocaine exposure on the rat striatal size.
    Status: Complete, unpublished report
    Principal Investigator: Diana Dow-Edwards, PhD

  • 07/14-07/15 Chief Administrative Gastroenterology Fellow
  • 06/12 Outstanding Resident of the Year
  • 06/11 Resident Teacher of the Year

  • 2012-present New York Society of Gastroenterology
  • 2012-present American College of Gastroenterology

  • Mixed Martial Arts, Traveling

  • Fluent in Russian

Gastroenterology Procedures & Services

Our highly skilled team of gastroenterologists in Brooklyn remains current in the ongoing advances in order to deliver the most appropriate, effective and compassionate care to each of our patients. Our Brooklyn gastroenterologists offer a full range of gastroenterology services and procedures including

  • Esophagus, Stomach and Duodenum Endoscopy and Biopsy
  • Colonoscopy
  • Small Bowel Endoscopy
  • ERCP( Endoscopic retrograde cholagiopancreatography)