Dr. Ramnik Joseph Xavier MD Gastroenterologist

Dr. Ramnik Xavier is a gastroenterologist in Boston, Massachusetts and is affiliated with Massachusetts General Hospital. He received his medical degree from University of Zimbabwe Huggins School of Medicine and has been in practice for 28 years. He is one of 46 doctors at Massachusetts General Hospital who specialize in Gastroenterology.

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Office Location

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Specialty & Clinical Interests

Gastroenterologist: General Gastroenterology

Hospital Affiliation

Massachusetts General Hospital
Ranked #3 in Gastroenterology & GI Surgery

Education & Medical Training

Massachusetts General Hospital
Residency, Anatomic and Clinical Pathology, 1989–1990

Massachusetts General Hospital
Residency, Internal Medicine, 1990–1992

Massachusetts General Hospital
Fellowship, Gastroenterology, 1992–1996

University of Zimbabwe Huggins School of Medicine
Class of 1986

Certifications & Licensure

American Board of Internal Medicine
Certified in Gastroenterology

American Board of Internal Medicine
Certified in Internal Medicine

MA State Medical License
Active through 2015

Awards, Honors & Recognition

Fellow (AGAF), American Gastroenterological Association

Publications & Presentations

Atg16L1 T300A variant decreases selective autophagy resulting in altered cytokine signaling and decreased antibacterial defense.
Lassen, K. G.,Kuballa, P.,Conway, K. L.,Patel, K. K.,Becker, C. E.,Peloquin, J. M.,Villablanca, E. J.,Norman, J. M.,Liu, T. C.,Heath, R. J.,Becker, M. L.,Fagbami, L.,Horn, H.,Mercer, J.,Yilmaz, O. H.,Jaffe, J. D.,Shamji, A. F.,Bhan, A. K.,Carr, S. A.,Daly, M. J.,Virgin, H. W.,Schreiber, S. L.,Stappenbeck, T. S.,Xavier, R. J.

Genetic Polymorphisms in Metabolizing Enzymes Modifying the Association Between Smoking and Inflammatory Bowel Diseases.
Ananthakrishnan, A. N.,Nguyen, D. D.,Sauk, J.,Yajnik, V.,Xavier, R. J.

The intestinal microbiome in type 1 diabetes.
Dunne, J. L.,Triplett, E. W.,Gevers, D.,Xavier, R.,Insel, R.,Danska, J.,Atkinson, M. A.

See all 97 publications

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