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 43 doctors at Massachusetts General Hospital who specialize in Gastroenterology.

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Office Location

See Contact Information

Specialty & Clinical Interests

Gastroenterologist: General Gastroenterology

Hospital Affiliation

Massachusetts General Hospital
Ranked #4 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 2013

Awards, Honors & Recognition

Fellow (AGAF), American Gastroenterological Association

Publications & Presentations

The Microbiome in Inflammatory Bowel Diseases: Current Status and the Future Ahead.
Kostic, A. D.,Xavier, R. J.,Gevers, D.

Autophagy is essential for cardiac morphogenesis during vertebrate development.
Lee, E.,Koo, Y.,Ng, A.,Wei, Y.,Luby-Phelps, K.,Juraszek, A.,Xavier, R. J.,Cleaver, O.,Levine, B.,Amatruda, J. F.

SMAD3 gene variant is a risk factor for recurrent surgery in patients with Crohn's disease.
Fowler, S. A.,Ananthakrishnan, A. N.,Gardet, A.,Stevens, C. R.,Korzenik, J. R.,Sands, B. E.,Daly, M. J.,Xavier, R. J.,Yajnik, V.

See all 92 publications

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • BCBS Massachusetts Blue Care Elect PPO
  • CIGNA Open Access
  • Great West PPO
  • Harvard Pilgrim HMO
  • Humana ChoiceCare Network PPO
  • Multiplan PHCS PPO
  • Multiplan PPO
  • Tufts Health Plan PPO
  • UniCare PPO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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