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Christina Tennyson

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  • Gastroenterology


  • MD, New York University School of Medicine

  • Residency, Internal Medicine
    Hospital of University of Pennsylvania

  • Fellowship, Gastroenterology
    Mount Sinai Hospital


    Dr. Tennyson is board certified in both Gastroenterology and Internal Medicine. She is an expert in the treatment of celiac disease.

    Prior to joining the Mount Sinai Doctors-Brooklyn Heights Medical Group in May 2013, Dr. Tennyson was an Assistant Professor of Clinical Medicine at the Columbia University College of Physicians and Surgeons since 2008. She worked at the Columbia University Celiac Disease Center and was involved in patient care, clinical research, and teaching medical students, residents, and fellows.

    In addition to celiac disease, Dr. Tennyson’s other areas of expertise include colonoscopy, upper endoscopy, diarrhea, nutrition, malabsorption, small bowel diseases, inflammatory bowel disease, and capsule endoscopy. She is certified by the American Board of Physician Nutrition Specialists.

    She received her medical degree from the New York University School of Medicine and performed both internship and residency in Internal Medicine at the Hospital of the University of Pennsylvania.   Dr. Tennyson completed her fellowship in Gastroenterology at the Mount Sinai School of Medicine.

    Dr. Tennyson’s professional memberships include the American College of Gastroenterology, the American Gastroenterological Society, the New York Society for Gastrointestinal Endoscopy, and the North American Society for the Study of Celiac Disease.   She has co-authored numerous articles and chapters in the field of Gastroenterology and has presented research at both national and international conferences.

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Tennyson did not report having any of the following types of financial relationships with industry during 2015 and/or 2016: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.

Insurance Information

Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).

Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.

Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.

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Brooklyn Heights Medical Group

300 Cadman Plaza West
Brooklyn, NY 11201

Tel: 929-210-6120
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