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Small Intestine Disorders

The small intestine is the longest part of the digestive system. It connects the stomach to the large intestine (or colon) and folds many times to fit inside the abdomen. Problems with the small intestine can include:

  • Bleeding
  • Celiac disease
  • Crohn's disease
  • Infections
  • Intestinal cancer
  • Intestinal obstruction
  • Irritable bowel syndrome
  • Ulcers

Programs + Services


General Gastroenterology Program

Tufts MC gastroenterologists and hepatologists are highly experienced in diagnosing and treating a wide range of gastrointestinal and liver conditions.
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Doctors + Care Team

Joel V. Weinstock, MD
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Joel V. Weinstock, MD

Title(s): Chief, Division of Gastroenterology/Hepatology; Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-4505

Gastroenterology, inflammatory bowel diseases, mucosal immunity, general gastroenterology, GI bleeding, endoscopy

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Harmony Allison, MD
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Harmony Allison, MD

Title(s): Gastroenterologist; Clinical and Research Instructor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Gastrointestinal motility, inflammatory bowel disease, general GI and endoscopy, diarrhea, constipation, celiac sprue and limited LFT abnormalities

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Jatin Roper, MD
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Jatin Roper, MD

Title(s): Director, Center for Hereditary Gastrointestinal Cancer; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology, Molecular Oncology Research Institute
Appt. Phone: 617-636-5883
Fax #: 617-636-4505

Familial colorectal cancer, Lynch syndrome, familial adenomatous polyposis, Cowden’s syndrome, general gastroenterology, gastric cancer screening, gastrointestinal endoscopy and colonoscopy

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Kathleen Viveiros, MD
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Kathleen Viveiros, MD

Title(s): Director, Gastroenterology/Hepatology Fellowship Program
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-4207

Hepatology, pre- and postliver transplant, hepatitis, chronic liver disease, general gastroenterology

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200 Years of Caring for the Community

Tufts Medical Center has been taking care of Boston and the surrounding community for more than 200 years.

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