Our Digestive and Liver Disease Program provides personalized care through a team of gastroenterologists, hepatologists and endoscopists who specialize in treating a wide spectrum of digestive and liver disorders.

 


 

Ramnik Joseph Xavier, MD, PhD
Chief, Division of Gastroenterology
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Ulcerative colitis, Crohn's disease, Celiac disease, Hepatitis, Autoimmune disorders of the GI tract, Gastrointestinal cancers
Accepting New Patients: Yes
Phone: 617-724-6007



 

Daniel C. Chung, MD
Clinical Chief
Board Certification: Gastroenterology, American Board of Internal Medicine; Internal Medicine, American Board of Internal Medicine
Clinical Interests: Colon cancer screening, Lynch syndrome, Hereditary colon cancer, Familial adenomatous polyposis / Gardner syndrome, Hereditary diffuse gastric cancer, Familial pancreatic cancer, Pancreatic neuroendocrine tumors, Carcinoid tumor
Accepting New Patients: Yes
Phone: 617-726-3544



 

Diane Renee Abraczinskas, MD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: General gastroenterology, Disorders of the esophagus, Eosinophilic esophagitis, Celiac sprue, Gastrointestinal bleeding, Hepatology
Accepting New Patients: Yes
Phone: 617-726-7933



 

Ashwin N. Ananthakrishnan, MBBS, MPH
Board Certification: Internal Medicine, American Board of Internal Medicine
Clinical Interests:
Crohn's disease, Ulcerative colitis, General gastroenterology
Accepting New Patients: Yes
Phone: 617-724-6005



 

Karin L. Andersson, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine; Transplant Hepatology, American Board of Internal Medicine
Clinical Interests:
Liver disease, Viral hepatitis
Accepting New Patients: Yes
Phone: 617-726-3524



 

William Robert Brugge, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Pancreatic cancer, Therapeutic endoscopy, Endoscopic ultrasound, Pancreatic cystic lesions, Esophageal cancer, Barrett's esophagus, Gastric (stomach) cancer, Gastrointestinal malignancy, Pancreatic biliary disorders, Stromal cell tumors
Accepting New Patients: Yes
Phone: 617-724-0578



 

Cheryl Jean Bunker, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Disorders of the esophagus, General gastroenterology
Accepting New Patients: Yes
Phone: 617-724-0578



 

Peter J. Carolan, Jr., MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Accepting New Patients: Yes
Phone: 617-726-0397



 

Brenna Wynne Casey, MD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Endoscopic ultrasound, Therapeutic endoscopy, Gastrointestinal malignancy, Pancreatic biliary disorders 
Accepting New Patients: Yes
Phone: 617-724-1685



 

Andrew T. Chan, MD, MPH
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Cancer prevention, General gastroenterology, Colorectal cancer, Hereditary colorectal cancer, Gastrointestinal cancers
Accepting New Patients: Yes
Phone: 617-726-3212



 

Michael Yoon- Suk Choi, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests:
General gastroenterology, Colorectal center, Colon cancer screening
Accepting New Patients: Yes
Phone: 617-726-3544



 

Raymond T. Chung, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine; Transplant Hepatology, American Board of Internal Medicine
Clinical Interests: Liver Disease / Hepatology, Viral hepatitis, Liver cancer, Liver transplant
Accepting New Patients: Yes
Phone: 617-724-6006



 

Francis P. Colizzo III, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Accepting New Patients: Yes
Phone: 617-726-7933



 

Kathleen E. Corey, MD, MPH
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Non-alcoholic fatty liver disease, Hepatitis C, Hepatitis B, Cholestatic liver disease, Liver transplant
Accepting New Patients: Yes
Phone: 617-724-0274



 

Jules Leonard Dienstag, MD
Board Certification: Internal Medicine, American Board of Internal Medicine
Clinical Interests: Viral hepatitis, Chronic liver disease, Liver transplant
Accepting New Patients: Yes
Phone: 617- 726-7450



 

David G. Forcione, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: ERCP (Endoscopic retrograde cholangiopancreatography), Endoscopic ultrasound, Disorders of the pancreas and bile ducts, Pancreas cysts, Pancreatitis, Barrett's esophagus, Endoscopic ablation of Barrett's esophagus (EMR, RFA, Cryo), Endolumenal stenting (esophageal stents, gastric stents), Complex colon polyps and colonic stents, Cyanoacrylate glue injection for varices
Accepting New Patients: Yes
Phone: 617-726-0607



 

John J. Garber, III, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: General GI, inflammatory bowel disease, celiac disease, GI cancer
Accepting New Patients: Yes
Phone: 617-724-6005



 

Cosmas Chris Giallourakis, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Crohn's disease, Ulcerative colitis, General gastroenterology, Hepatology
Accepting New Patients: Yes
Phone: 617-726-2026



 

Chin Hur, MD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Gastroesophageal reflux disease (GERD), Barrett's esophagus, Gastrointestinal cancer screening, Cancer chemoprevention, Eosinophilic esophagitis
Accepting New Patients: Yes
Phone: 617-726-3544



 

Lee Michael Kaplan, MD, PhD
Board Certification: Gastroenterology, American Board of Internal Medicine; Internal Medicine, American Board of Internal Medicine
Clinical Interests: Hepatitis, Liver disease, Obesity, GI endocrine tumors
Accepting New Patients: Yes
Phone: 617-724-6007



 

Peter Baker Kelsey, MD
Board Certification: Gastroenterology, American Board of Internal Medicine; Internal Medicine, American Board of Internal Medicine
Clinical Interests: Bleeding of unknown origin, Disorders of the biliary and pancreas, Therapeutic endoscopy
Accepting New Patients: Yes
Phone: 617- 724-6044



 

Hamed Khalili, MD, MPH
Board Certification:
Internal Medicine, American Board of Internal Medicine
Clinical Interests:
Inflammatory bowel disease, Crohn' disease and ulcerative colitis, Microscopic colitis (lymphocytic and collagenous)
Accepting New Patients: Yes
Phone: 617-726-7933



 

Braden (Brad) Kuo, MD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Esophageal disease, General gastroenterology, GI motility, Gastroesophageal reflux disease (GERD)
Accepting New Patients: Yes
Phone: 617-724-6038



 

Alan C. Mullen, MD, PhD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Viral hepatitis, Chronic liver disease, General GI, Abnormal liver function tests
Accepting New Patients: Yes
Phone: 617-724-6006



 

Barbara Joyce Nath, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Biliary manometry, Esophageal motility, Swallowing disorders, Gastroesophageal reflux disease (GERD)
Accepting New Patients: Yes
Phone: 617- 726-3505



 

Deanna Diemanh Nguyen, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Ulcerative colitis, Crohn's disease, Inflammatory bowel disease, Celiac sprue, Microscopic colitis
Accepting New Patients: Yes
Phone: 617- 726-2047



 

Norman Shizuaki Nishioka, MD
Board Certification: Internal Medicine, American Board of Internal Medicine; Gastroenterology, American Board of Internal Medicine
Clinical Interests: Barrett's esophagus, Esophageal cancer, Gastroesophageal reflux disease (GERD), Diagnostic and therapeutic endoscopy
Accepting New Patients: Yes
Phone: 617-726-4422



 

Daniel Stephan Pratt, MD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Primary Biliary Cirrhosis, Primary Sclerosing Cholangitis, Autoimmune hepatitis, Autoimmune liver disease, Cirrhosis, Hepatitis B, Hepatitis C, Hepatocellular carcinoma, Cholangiocarcinoma, Abnormal liver function tests, Liver tumors
Accepting New Patients: Yes
Phone: 617- 726-3313



 

James Michael Richter, MD
Board Certification: Gastroenterology, American Board of Internal Medicine; Internal Medicine, American Board of Internal Medicine
Clinical Interests: Colon cancer and polyps, Gastrointestinal bleeding, Inflammatory bowel disease, Gastroesophageal reflux disease (GERD)
Accepting New Patients: Yes
Phone: 617-726-0397



 

Esperance A. Schaefer, MD, MPH
Board Certification: Internal Medicine, American Board of Internal Medicine
Clinical Interests: Viral Hepatitis, Non-alcoholic Fatty Liver Disease, Autoimmune Hepatitis, Abnormal Liver Function Tests, Chronic Liver Diseases, Cirrhosis, General Gastroenterology, EGD and colonoscopy
Accepting New Patients: Yes
Phone: 617-724-6006



 

Michael Thiim, MD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Autoimmune hepatitis, Cirrhosis, Hepatitis B, Hepatitis C, Liver failure, Liver transplant, Portal hypertension, Diagnostic Endoscopy
Accepting New Patients: Yes
Phone: 617-726-3212



 

C. Giovanni Traverso, MB, BChir, PhD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: General gastroenterology, hereditary colon cancer, Lynch syndrome, Familial adenomatous polyposis
Accepting New Patients: Yes
Phone: 978-882-6709



 

Debra F. Weinstein, MD
Board Certification: Internal Medicine, American Board of Internal Medicine
Clinical Interests: Screening and Detection of Colon Cancer, Surveillance for colonic polyps
Accepting New Patients: Yes
Phone: 617-724-5995



 

Vijay Yajnik, MD, PhD
Board Certification: Gastroenterology, American Board of Internal Medicine
Clinical Interests: Inflammatory bowel disease, Crohn's disease, Ulcerative colitis, Microscopic colitis, Immune diseases affecting GI tract, Celiac disease, Gastrointestinal cancers
Accepting New Patients: Yes
Phone: 617-724-6005


Fellows

Irun Bhan, MD
Clinical/Research Interest: Hepatology, GI Malignancies
Accepting New Patients: Yes
Phone:
617-724-6113

Kristin Burke, MD
Clinical Interests: General gastroenterology
Accepting New Patients:
Yes
Phone:
617-643-0826

Jennifer Y. Chen, MD
Clinical/Research Interest:  TGF Beta signaling in hepatic fibrosis.
Accepting New Patients: Yes
Phone:
617-724-6113

Michael Dougan, MD, PhD
Clinical/Research Interest: Inflammatory and allergic diseases of the gut
Accepting New Patients: Yes
Phone:
617-724-6113

Gaurav Gaiha, MD, DPhil
Clinical/Research Interest: 
Oral Vaccine Development, GI cancer/immunology
Accepting New Patients: Yes
Phone:
617-724-6007

Russell Goodman, MD, DPhil
Clinical/Research Interest: Hepatology, role of mitochondria in liver disease
Accepting New Patients: Yes
Phone:
617-724-6113

Dmitriy Kedrin, MD, PhD
Clinical/Research Interest:  Molecular imaging in GI disease
Accepting New Patients: Yes
Phone:
617-724-6113

Annie J. Kruger, MD, PhD
Clinical/Research Interest:  Clinical and translational research in liver disease
Accepting New Patients: Yes
Phone:
617-726-3524

Long Nguyen, MS, MD
Clinical Interests: General gastroenterology
Accepting New Patients:
Yes
Phone:
617-643-0826

Ruma Rajbhandari, MD, MPH
Clinical/Research Interest: Viral hepatitis, global health
Accepting New Patients: Yes
Phone:
617-724-6113

Tracey Simon, MD
Clinical Interests: General gastroenterology
Accepting New Patients:
Yes
Phone:
617-643-0826

Xiao Tan, MD, PhD
Clinical/Research Interest: microbiome manipulation
Accepting New Patients: Yes
Phone:
617-643-0826

Nneka Ufere, MD
Clinical Interests: General gastroenterology
Accepting New Patients:
Yes
Phone:
617-643-0826


Nurse practitioners

Judith Bloom, NP
Program:
Liver
Phone: 617-726-0628

Stephanie Doherty, NP
Program:
General GI, Inpatient/Outpatient
Phone: 617-643-0826

Alichia Paton, NP
Program:
Pancreas & Biliary, Inpatient

Kristina Skarbinski, NP
Program:
Swallowing & Heartburn
Phone: 617-724-6038

Andrea Thurler, NP
Program: Research/Motility
Phone: 617-724-6038

Margaret White-Guthro, NP
Program:
Crohn's & Colitis
Phone: 617-724-6005

Jessica Wisocky, NP
Program:
Hepatology
Phone: 617-724-6006

patient

#3 in the nation for digestive care

U.S. News & World Report ranks Mass General gastroenterology third among U.S. hospitals.