Faculty & Staff

Clara Abraham, M.D.
Clinical interest: Gastrointestinal Diseases
Research interest: Regulation of the intestinal immune system; T cell trafficking and activation

Harry Aslanian, M.D.
Clinical interest: Gastrointestinal diseases including diseases of the pancreas and biliary tree, and clinical applications of gastrointestinal endoscopy.
Research interest: Advanced endoscopic techniques, and clinical aspects of biliary and pancreatic disease.

Henry J. Binder, M.D.
Clinical interest: General gastroenterology with particular interest in diarrheal and inflammatory bowel disease.
Research interest: The goal of our research program is to further the understanding of the regulation of colonic electrolyte transport; the clinical expression of these studies is an increased knowledge of the pathophysiology of and improved treatment for diarrheal disorders.

James L. Boyer, M.D.
Clinical interest: Liver Diseases
Research interest: Understanding the basic physiology of bile formation and the pathophysiologic mechanisms underlying cholestasis.

Judy Cho, M.D.
Clinical interest: Inflammatory Bowel Disease; Genetics
Research interest: Identifying genetic variation that affects susceptibility to and expression of inflammatory bowel disease (IBD).

Chuhan Chung, M.D.
Clinical interest: Liver Diseases

Jonathan A. Dranoff, M.D.
Clinical interest: Liver Disease, with emphasis on cirrhosis and primary diseases of the bile ducts
Research interest: Cellular mechanisms of liver fibrosis; Regulation of bile duct growth in health and disease

Rosemarie L. Fisher, M.D.
Clinical interest: Gastrointestinal Diseases; Emphasis on nutrition
Research interest: Clinical projects related to both gastrointestinal diseases and nutritional support.

Martin H. Floch, M.D.
Clinical interest: inflammatory bowel disease (colitis and ileitis), irritable bowel syndrome, diseases of malabsorption and malnutrition such as celiac disease and short bowel syndrome, and the new capsule endoscopy.

Guadalupe Garcia-Tsao, M.D.
Clinical interest: Liver Diseases; Emphasis on cirrhosis and portal hypertension
Research interest: Clinical research focusing on chronic liver disease and its complications.

Fred S. Gorelick, M.D.
Clinical interest: Gastrointestinal Diseases
Research interest: Physiologic function of the pancreatic acinar cell and the pathogenesis of acute pancreatitis.

Roberto J. Groszmann, M.D.
Clinical interest: Acute and chronic liver diseases with special interest in the treatment of complications of portal hypertension.
Research interest: Models of portal hypertension which focus on the understanding to the pathophysiology of portal hypertension and its logical treatment.

Avlin Imaeda, M.D.
Clinical interest: General Gastroenterology and Diseases of the small bowel
Research interest: Protective effects of low dose aspirin in liver disease, patient preferences and barriers to patient's seeking colonoscopic screening.

Yasuko Iwakiri, Ph.D.
Research interest: Nitric oxide (NO) signaling in endothelial cell biology.
Mechanisms of vascular abnormality observed in portal hypertension

Dhanpat Jain, M.B.B.S., M.D.
GI and Liver pathology.
Research interests: Liver tumors; Gastrointestinal stromal tumors; Prostate cancer/Risk and Mortality; Motility disorders of the bowel.

Sofia Simona Jakab, M.D.
Clinical Interests: Evaluation and treatment of patients with hepatitis B, C, fatty liver disease, drug-induced liver disease, cirrhosis, as well as management of patients before and after liver transplantation.
Research Interests: Treatment of hepatitis B, C, fatty liver disease, medical residents’ education in the management of liver diseases, and living-donor liver transplantation.

Priya Jamidar, M.D.
Clinical research: Diseases of the pancreas and biliary tree; Advanced Endoscopic Techniques
Research interest: Advanced endoscopic techniques; pancreatitis; sphincter of oddi dysfunction as well as other clinical aspects of biliary and pancreatic disease.

Cyrus R. Kapadia, M.D.
Clinical interest: Gastrointestinal Diseases
Research interest: Clinical research focusing on colorectal cancer.

Joseph Lim, M.D.
Clinical interest: Liver Disease
Research interest: Acute and chronic liver diseases, with emphasis on: 1) Viral hepatitis B and C, and 2) Fatty liver disorders, including non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH).

Waj Z. Mehal, M.D., D.Phil.
Clinical interest: General hepatology with an interest in the management of hepatitis C in patients with end-stage renal disease.
Research interest: Immunology of the healthy and diseased liver.

Anil Bernard Nagar, M.D.
Clinical Interests:  Gastroenterology and liver diseases and advanced endoscopic procedures
Research Interests:  Clinical studies that examine the value of interventions for detecting and treating GI diseases

Michael H. Nathanson, M.D., Ph.D.
Chief, Section of Digestive Diseases
Clinical interest: Gastrointestinal and Liver Diseases
Research interest: Second messengers and regulated secretion in polarized epithelia.

Ioannis Oikonomou, M.D.
Clinical research: Inflammatory Bowel Disease
Research interest: Metabolic disorders associated with Inflammatory Bowel Disease, Clinical Trials in Inflammatory Bowel Disease

Deborah D. Proctor, M.D.
Professor of Medicine
Gastroenterology Fellowship Program Director
Medical Director, Inflammatory Bowel Disease Program
Clinical interest: Gastrointestinal Diseases
Research interest: Clinical research focusing on Inflammatory Bowel Disease and Hereditary Hemorrhagic Telangiectasia.

Marie Robert, M.D.
Research interest: gastrointestinal and liver pathology, inflammatory bowel diseases, Barrett esophagus, dysplasia associated with inflammatory bowel disease and Barrett esophagus.

Michael Schilsky, M.D.
Clinical Interest: Transplant hepatology, Inherited metabolic disorders of the liver, Wilson disease, Hemochromatosis and iron overload disorders, alpha-1 antitrypsin disease, hepatocellular carcinoma, drug induced liver injury, acute liver failure
Research Interest: Wilson disease, disorders of metal metabolism, acute liver failure

Anish A. Sheth, M.D.
Clinical Interests:Motility disorders including achalasia, gastroesophageal reflux disease, gastroparesis, small intestinal pseudoobstruction and bacterial overgrowth.

Uzma D. Siddiqui M.D.
Clinical interest: pancreaticobiliary disease, EUS evaluation of malignancy and pancreatic cystic lesions, women's gastroenterological issues, and the treatment of GAVE and radiation proctitis.

Carol J. Soroka, Ph.D.
Research interest: Regulation of trafficking of hepatocytic apical canalicular membrane proteins to their site of function.

Carlo Spirli, Ph.D.
Research interest: Epithelial Cell Biology, Pathophysiology of Diseases of the Biliary Tree, Liver Cell Therapy.

Mario Strazzabosco M.D., Ph.D.
Clinical Interest: Transplant Hepatology, Hepatocellular Carcinoma, Biliary Tree Diseases
Research Interest: Epithelial Cell Biology, Pathophysiology of Diseases of the Biliary Tree, Liver Cell Therapy, Treatment of Liver Cancer

E. Scott Swenson M.D., Ph.D.
Research Interest: Investigating the role of stem and progenitor cells in the liver during normal development and in response to liver injury.

Tamar Taddei, M.D.
Clinical Interests: Liver disease: cirrhosis, transplant hepatology, metabolic liver diseases, and benign and malignant neoplasms of the liver.

Research Interest: Clinical and translational research on Gaucher Disease, the most common lysosomal storage disorder.

Edwin C. Thrower, PhD.
Research Interest: focuses on premature activation of digestive zymogens within pancreatic acinar cells, a key event in the initiation of acute pancreatitis (AP).