Tools

Gastroenterology

General Gastroenterology Program

Overview

Our versatility Is a strength

The Gastroenterology/Hepatology Division at Tufts Medical Center in downtown Boston includes a strong team of sub-specialists who have the versatility to address a variety of general gastroenterology symptoms and diseases.

Each of our doctors is experienced in diagnosing and treating gastrointestinal and liver problems such as:

  • Gastroesophageal reflux disease (GERD)
  • Hepatitis B and hepatitis C
  • Inflammatory bowel disease
  • Irritable bowel syndrome
  • Motility disorders
  • Primary biliary cirrhosis
  • Primary sclerosing cholangitis
  • Abdominal pain
  • Celiac disease
  • Chronic diarrhea
  • Constipation
  • Dyspepsia
  • Eosinophilic esophagitis
  • Eosinophilic gastroenteritis
  • Food allergies

In most cases, our doctors will have the expertise to manage your care on their own. They'll also have the background to recognize and treat any other gastrointestinal issues you're experiencing. As a result, you'll enjoy the convenience of seeing one specialist for multiple illnesses.

Sometimes, however, patients face more-complex gastrointestinal disorders. In these cases, your doctor can consult with division colleagues who specialize in managing inflammatory bowel disease, eosinophilic esophagitis, liver diseases, biliary pancreatic diseases and other conditions. If you have an especially complicated case, we may have the appropriate specialist take over your care.

What does our balance of generalized and specialized expertise mean for you? You'll receive care that is individualized to your particular situation and gives you the best chance at a healthier future.

Meet Dr. Harmony Allison, our Program Director

Harmony Allison, MD, a member of the Gastroenterology/Hepatology Division since 2008, leads the General Gastroenterology Program. Her clinical expertise spans inflammatory bowel disease, motility disorders, celiac disease and other gastrointestinal problems.

Like many of our division's doctors, Dr. Allison is active in research aimed at advancing the understanding of gastrointestinal disorders. As a patient in our care, you may have the opportunity to take part in clinical trials offering access to promising new therapies.

Which treatment option makes sense for you?

All standard diagnostic services are available through our program, including:

  • Colonoscopy
  • Endoscopy
  • Endoscopic retrograde cholangiopancreatogram (ERCP)
  • Endoscopic ultrasound
  • Esophageal manometry
  • Video capsule endoscopy
  • Radiology, breath and laboratory tests

Treatments for gastrointestinal disorders can take a variety of forms, including medications, behavioral changes and dietary changes. We understand that every patient is different and will create a unique treatment plan to address your specific needs and circumstances. Where appropriate, we work with dietitians, colorectal surgeons, infectious disease specialists and other Tufts MC colleagues in developing and managing your plan.

Ultimately, our goal is to resolve your gastrointestinal problem and return you to the care of your local doctor as quickly as possible. In the meantime, you can count on expert care from a compassionate team dedicated to helping you get better.

Doctors + Care Team

Joel V. Weinstock, MD
powered by Zoc Doc

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

More Info

Harmony Allison, MD
powered by Zoc Doc

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

More Info

Aaron M. Dickstein, MD
powered by Zoc Doc

Aaron M. Dickstein, MD

Title(s): Gastroenterologist; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-9292

General gastroenterology, gastrointestinal endoscopy and colonoscopy, gastrointestinal motility, obscure GI bleeding, fecal microbiota transplantation

More Info

Moises Guelrud, MD
powered by Zoc Doc

Moises Guelrud, MD

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

Gastroenterology, sphincter of Oddi manometry in children and adults, ERCP (diagnosis and therapeutic) in children and adults, ECRP (diagnosis and therapeutic) in children and adults, endoscopic diagnosis and treatment of Barrett's esophagus, magnification endoscopy and chromoendoscopy, pancreatic diseases

More Info

Lori B. Olans, MD, MPH
powered by Zoc Doc

Lori B. Olans, MD, MPH

Title(s): Gastroenterologist; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-8615

General gastroenterology

More Info

Jatin Roper, MD
powered by Zoc Doc

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

More Info

Kathleen Viveiros, MD
powered by Zoc Doc

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

More Info

Research + Clinical Trials

Crohn's disease

Referring Physician Resources

We're dedicated to creating and maintaining strong relationships with referring physicians. Once your patient is in our care, we work hard to make sure he or she is comfortable and has the best experience possible. When it’s time for the patient to return to your care, we make the transition smooth and seamless.


Call Us
617-636-5883