Gastroenterology

Doctors + Care Team

Sonia Friedman, MD

Sonia Friedman, MD

Accepting New Patients

Title(s): Chief of Gastroenterology at Tufts Medical Center
Professor of Medicine at Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Crohn's disease, ulcerative colitis

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Harmony Allison, MD

Harmony Allison, MD

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Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

Title(s): Gastroenterologist; Assistant Professor, 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 disease and limited liver function test abnormalities

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Lauren D. Gaffny, MS, PA-C

Lauren D. Gaffny, MS, PA-C

Accepting New Patients

Online Scheduling Available

Title(s): Physician Assistant
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

General gastroenterology

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Fredric D. Gordon, MD

Fredric D. Gordon, MD

Accepting New Patients

Title(s): Transplant Hepatologist and Professor of Medicine
Department(s): Transplant Surgery, Transplant Hepatology
Appt. Phone: 617-636-4886
Fax #: 617-636-1003

Liver Transplant, Hepatitis C, Hepatitis B, Portal Hypertension, Living Liver Transplantation, Hemochromatosis

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Sushrut Jangi, MD

Sushrut Jangi, MD

Accepting New Patients

Online Scheduling Available

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

Gastroenterology, Inflammatory Bowel Disease

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Raffi Karagozian, MD

Raffi Karagozian, MD

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Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

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

Abnormal liver tests, cirrhosis, non-alcoholic fatty liver disease, Hepatitis B/C, liver transplant, primary biliary cholangitis, primary sclerosing cholangitis, benign liver lesions, liver cancer, hemochromatosis, and drug induced liver injury.

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Manoj Kumar, MBBS, MPH

Manoj Kumar, MBBS, MPH

Accepting New Patients

Title(s): Advanced Endoscopist (Gastroenterology), Director of Therapeutic Endoscopic Ultrasound
Department(s): Gastroenterology, Advanced Endoscopy; The Marlene Neely Center for Digestive Health, Tufts Medical Center
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Medical Pancreatology
ERCP with Cholangiopancreatoscopy (Spyglass), Electrohydraulic lithotripsy (EHL), Mechanical Lithotripsy
ERCP with RFA and Photodynamic therapy for cholangiocarcinoma
Balloon enteroscopy-assisted ERCP in patients with altered anatomy
Endoscopic ultrasound-directed trans-gastric ERCP (EDGE) in patients with RYGB
EUS guided biopsy and T staging of GI tract malignancy
EUS guided biliary and pancreatic drainage, Gall bladder drainage, Gi tract anastomosis creation (EUS guided Gastrojejunostomy)
EUS guided drainage of post surgical and non surgical abdominal abscess and fluid collections
Endoscopic management of necrotizing pancreatitis
Endoscopic Vacuum-Assisted Closure therapy (EVAC)
Endohepatology - EUS guided portal pressure gradient (EUS-PPG) measurement, EUS guided Liver Biopsy, EUS guided treatment of gastric varices
Endobariatrics -Transoral outlet reduction endoscopy (TORe) to help manage weight regain after RYGB, Endosuturing
Endoscopic management of post-surgical leak, Enteral stenting
Management of complex GI tract fistulas and luminal strictures
Feeding tubes placement, Large Polyp EMR, RFA for Barrett's esophagus
Third Space Endoscopy (ESD/POEM)

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Joel B. Mason, MD

Joel B. Mason, MD

Accepting New Patients

Virtual Appointments Available

Title(s): Gastroenterologist; Professor, Tufts University Schools of Medicine and Friedman School of Nutritional Science and Policy; Senior Scientist and Director, Vitamins and Carcinogenesis Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University
Department(s): Medicine, Clinical Nutrition, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Malabsorption and unintentional weight loss, Inflammatory bowel disease, nutritional aspects of gastrointestinal disease, home nutritional therapy, enteral and parenteral nutrition

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Miu Lai Ng, FNP, MPH

Miu Lai Ng, FNP, MPH

Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

Title(s): Nurse Practitioner
Department(s): Gastroenterology, Hepatology
Appt. Phone: 617-636-5883
Fax #: 617-636-9292

Hepatitis B, Hepatitis C, Fatty liver diseases, autoimmune hepatitis, PSC, PBC, Cirrhosis”

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Lori B. Olans, MD, MPH

Lori B. Olans, MD, MPH

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Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

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, inflammatory bowel disease

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Andrew G. Plaut, MD

Andrew G. Plaut, MD

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Accepting New Patients

Virtual Appointments Available

Online Scheduling Available

Title(s): Gastroenterologist; Professor, Tufts University School of Medicine
Department(s): Medicine, Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-4207

Gastroenterology, digestive diseases, gastrointestinal infections and parasitic disease, inflammatory bowel disease, diagnostic evaluation of unexplained pain or diarrhea

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Ann Shum, DNP, AGPCNP-BC

Ann Shum, DNP, AGPCNP-BC

Accepting New Patients

Title(s): Nurse Practitioner
Department(s): Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

Gastroenterology, Inflammatory Bowel Disease

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picture of Kathryn Stiff, MSN

Kathryn Stiff, MSN

Accepting New Patients

Title(s): Nurse Practitioner
Department(s): Gastroenterology
Appt. Phone: 617-636-5883
Fax #: 617-636-1480

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