Faculty & Staff

Yale Digestive Diseases faculty includes a team of gastroenterologists and hepatologists whose expertise focuses on diseases of the gastrointestinal tract and liver. Faculty members specialize in disorders of the esophagus, stomach, liver, gallbladder, pancreas, small intestine, colon and rectum. Evaluations, diagnostic and therapeutic outpatient endoscopy services serve referrals from the region. Non-endoscopic studies, and evaluation and management of liver transplant patients are also provided by this group.

Nathanson, Michael Harris

Professor of Medicine (Digestive Diseases) and of Cell Biology; Section Chief, Digestive Diseases; Director, Yale Liver Center; Director, Center for Cell and Molecular Imaging


Abraham, Clara

Associate Professor of Medicine (Digestive Diseases)

Research Interests:Regulation of the intestinal immune system; T cell trafficking and activation; Genetics and immunobiology of inflammatory bowel disease

  • Office:(203) 785-5610

Ananth, Meena

Senior Research Scientist in Medicine (Digestive Diseases)

Research Interests:Gene Regulation; Bile Acid Transporters; Cholestasis; Development; Inositol Phosphate Receptors; MicroRNAs

  • Office:(203) 737-6823
  • Lab:(203) 775-6051

Aslanian, Harry Robert

Associate Professor of Medicine (Digestive Diseases)
Associate Director, Endoscopy
Director, Yale Advanced Endoscopy Fellowship
Director of Gastroenterology, Yale Health Plan

Research Interests:Advanced endoscopic techniques; Gastrointestinal bleeding; Colonoscopic polyp detection; Evaluation of pancreas cysts; Diagnosis of pancreas cancer; Pancreatic and biliary disorders; Therapy of bile duct obstruction via ERCP; Endoscopic ultrasound (EUS); Fine-needle aspiration (FNA); Advanced endoscopic imaging; Sedation for endoscopy

  • Appt:(203) 200-5083

Binder, Henry J.

Professor Emeritus of and Senior Research Scientist in Medicine (Digestive Diseases)

Research Interests:ATPase; Colonic Electrolyte Transport; Epithelial Cell Function; Ion Transport; Short Chain Fatty Acids; Molecular Cellular Entities; Receptors

  • Office:(203) 785-4796
  • Appt:(203) 785-4138

Boyer, James Lorenzen

Ensign Professor of Medicine (Digestive Diseases)
Emeritus Director, Yale Liver Center

Research Interests:Membrane transport; Bile formation; Cholestasis; Nuclear receptors; Bile acids; Membrane targeting; Jaundice; Autoimmune hepatitis; Primary biliary cirrhosis; Sclerosing cholangitis; Hepatic drug toxicity

  • Office:(203) 785-7352
  • Lab:(203) 785-3151
  • Appt:(203) 785-5279

Chaptini, Louis

Assistant Professor of Medicine (Digestive Diseases)

  • Office:(203) 785-4138
  • Appt:(203) 785-4138

Cho, Judy H

Henry J. and Joan W. Binder Professor (Adjunct) of Medicine (Digestive Diseases)
Director, Inflammatory Bowel Disease Center

Research Interests:Inflammatory Bowel Disease (IBD); identifying genetic variation that affects susceptibility to and expression of Inflammatory Bowel Disease (IBD)

  • Office:(203) 785-5610
  • Appt:(203) 785-4138

Chung, Chuhan

Associate Professor of Medicine (Digestive Diseases)

Research Interests:Fatty Liver Disease; Hepatocellular Carcinoma; Angiogenic inhibitors; Pigment Epithelium-Derived Factor (PEDF); Thrombospondin-1

  • Office:(203) 932-1x36 x3680
  • Appt:(203) 785-7312

Eggers, Carol Andrea

Clinical Instructor in Nursing

    Farrell, James J

    Associate Professor of Medicine (Digestive Diseases)
    Director, Yale Center for Pancreatic Diseases

    Research Interests:Pancreatic Cancer Early Diagnosis; Pancreatic Cystic Neoplasms, Pancreatic Biomarkers, Personalized Medicine, Pancreatic Disease, Gastrointestinal Oncoloy

    • Office:(203) 785-6228
    • Lab:(203) 200-5083
    • Appt:(203) 200-5083

    Fisher, Rosemarie L

    Professor of Medicine (Digestive Diseases) and of Pediatrics
    Associate Dean of Graduate Medical Education

    Research Interests:Gastrointestinal diseases; Nutritional support; Home parenteral nutrition

    • Office:(203) 688-1449
    • Appt:(203) 785-4138

    Floch, Martin Herbert

    Assistant Clinical Professor of Medicine (Digestive Diseases)

    • Office:(203) 785-4138
    • Appt:(203) 785-4138

    Fortune, Brett E

    Assistant Professor of Medicine (Digestive Diseases)

    • Appt:(203) 785-4138

    Garcia-Tsao, Guadalupe

    Professor of Medicine (Digestive Diseases)
    Chief, Digestive Diseases, VA-CT Healthcare System
    Director, Clinical and Translational Core, Yale Liver Center
    Program Director, VA-CT Hepatitis C Resource Center

    Research Interests:Cirrhosis; Natural history of cirrhosis; Gastroesophageal varices; Variceal hemorrhage; Ascites; Spontaneous bacterial peritonitis; Hepatorenal syndrome

    • Office:(203) 737-6063
    • Appt:(203) 785-4138

    Gorelick, Fred

    Professor of Medicine (Digestive Diseases) and of Cell Biology
    Deputy Director, Yale M.D., Ph.D. Program

    Research Interests:Exocrine pancreas; Pancreatitis; Intracellular proteolysis; Vacuolar ATPase; AMPK; Protein kinase C

    • Office:(203) 932-1x36 x3679

    Groszmann, Roberto J

    Professor Emeritus of and Senior Research Scientist in Medicine (Digestive Diseases)

    Research Interests:Ascites; Cirrhosis; Portal Hypertension; Variceal Bleeding

    • Office:(203) 932-1x46 x4696

    Hoque, Rafaz

    Assistant Professor of Medicine (Digestive Diseases)

    • Appt:(203) 737-1345

    Imaeda, Avlin Barlow

    Assistant Professor of Medicine (Digestive Diseases)
    Fellowship Program Director

    Research Interests:Protective effects of low dose aspirin in liver disease; Patient preferences and barriers to patients seeking colonoscopic screening

    • Office:(203) 932-1x53 x5339

    Iwakiri, Yasuko

    Associate Professor of Medicine (Digestive Diseases)

    Research Interests:Portal hypertension; Nitric oxide; S-nitrosylation; CD147 (EMMPRIN, Basigin); Reticulon 4B (Nogo-B); Liver fibrosis; Liver regeneration; Vascular biology

    • Office:(203) 785-6204
    • Lab:(203) 785-4313

    Jain, Dhanpat

    Professor of Pathology and of Medicine (Digestive Diseases)
    Director, Program in Gastrointestinal and Liver Pathology
    Director, Fellowship in Gastrointestinal and Liver Pathology

    Research Interests:Inflammatory Bowel Disease (IBD); Liver tumors; Motility disorders of GI tract; Esophageal and gastric carcinoma

    • Office:(203) 785-3743
    • Appt:(203) 785-2788

    Jakab, Simona

    Assistant Professor of Medicine (Digestive Diseases)

    • Office:(203) 785-4138
    • Appt:(203) 785-4138

    Jamidar, Priya Arvind

    Professor of Medicine (Digestive Diseases)
    Director, Endoscopy

    Research Interests:Optimal application of advanced endoscopic techniques to clinical problems; Gastrointestinal bleeding; Graft-versus-host disease, pancreatic and biliary disorders

    • Appt:(203) 200-5083

    Kapadia, Cyrus Roos

    Professor of Medicine (Digestive Diseases)

    Research Interests:Medical education

    • Office:(203) 785-4138
    • Appt:(203) 785-4138

    Laine, Loren

    Professor of Medicine (Digestive Diseases)

    Research Interests:Gastrointestinal hemorrhage; Upper gastrointestinal injury (H. pylori, NSAIDs)

      Liapakis, AnnMarie

      Assistant Professor of Medicine (Digestive Diseases)

      Research Interests:Viral hepatitis; Transplant hepatology

      • Appt:(203) 785-4138

      Lim, Joseph K

      Associate Professor of Medicine (Digestive Diseases)
      Director, Yale Viral Hepatitis Program

      Research Interests:Acute and chronic liver diseases; Chronic hepatitis B and C infections; Fatty liver disorders, including non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH); Complications of cirrhosis and portal hypertension

      • Office:(203) 737-6063
      • Appt:(203) 785-4138

      Llor, Xavier

      • Appt:(203) 200-5083

      Mehal, Wajahat Zafar

      Associate Professor of Medicine (Digestive Diseases)

      Research Interests:Sterile inflammation; Liver fibrosis; Liver immunology

      • Appt:(203) 785-4138

      Mistry, Pramod Kumar

      Professor of Medicine (Digestive Diseases) and of Pediatrics (Gastroenterology)
      Professor of Cellular & Molecular Physiology
      Director of Yale Lysosomal Disease Center and Gaucher Disease Treatment Center

      Research Interests:Gaucher's disease; Molecular genetics; Genotype/phenotype correlations modifier genes; Animal models and therapies; Wilson's disease; Glycogen storage disease type 1a

      • Office:(203) 785-3412
      • Appt:(203) 785-3412

      Nagar, Anil Bernard

      Associate Professor of Medicine (Digestive Diseases)
      Endoscopy Director, West Haven VAMC

      Research Interests:Value of interventions for detecting and treating GI diseases

      • Office:(203) 932-1x39 x3942
      • Appt:(203) 932-5711 x3942

      Nathanson, Michael Harris

      Professor of Medicine (Digestive Diseases) and of Cell Biology
      Section Chief, Digestive Diseases
      Director, Yale Liver Center
      Director, Center for Cell and Molecular Imaging

      Research Interests:Mechanisms and effects of calcium signals in polarized epithelia; Effect of spatial organization of calcium signals on organ function regulation; Factors that organize Ca2+ waves in hepatocytes; Organization and effects of Ca2+ waves in cholangiocytes; Mechanisms and effects of Ca2+ signals in the nucleus

      • Office:(203) 785-7312
      • Appt:(203) 785-4138

      Oikonomou, Ioannis

      Assistant Professor of Medicine (Digestive Diseases)
      Co-Medical Director, Temple Endoscopy Center
      Medical Director, Temple Infusion Center

      Research Interests:Clinical Research in Inflammatory Bowel Diseases (Ulcerative Colitis, Crohn's Disease)

      • Office:(203) 785-4138
      • Appt:(203) 785-4138

      Proctor, Deborah Denise

      Professor of Medicine (Digestive Diseases)
      Medical Director, Inflammatory Bowel Disease Program
      Site Director, Universidad del Valle, Cali, Columbia and Yale/Stanford, Johnson and Johnson Global Health Scholar Program
      Board of Directors and Treasurer, Honduras Children's Project

      Research Interests:Inflammatory Bowel Disease; Hereditary Hemorrhagic Telangiectasia

      • Office:(203) 785-4138
      • Appt:(203) 785-4138

      Protiva, Petr

      Associate Professor of Medicine (Digestive Diseases)
      Adjunct Faculty at Breslow Lab, Rockefeller University, New York, NY

      Research Interests:Colorectal Cancer Prevention; Colorectal Cancer Biology and Therapy; Translational Clinical Trials; Experimental Therapeutics

        Reed, Anamika Margaret

        Assistant Professor of Medicine (Digestive Diseases)

          Robert, Marie E

          Professor of Pathology and of Medicine
          Associate Director, Fellowship in Gastrointestinal Pathology

          Research Interests:Gastrointestinal and liver pathology; Inflammatory bowel diseases; Barrett esophagus; Dysplasia associated with inflammatory bowel disease and Barrett esophagus

          • Office:(203) 785-5003

          Sanchez, Mayra Janet

          Assistant Professor of Medicine (Digestive Diseases)
          Director, Gastrointestinal Motility Program

          • Office:(203) 785-4138
          • Appt:(203) 785-4138

          Schilsky, Michael

          Associate Professor of Medicine (Digestive Diseases) and of Surgery (Transplant)
          Medical Director, Adult Liver Transplant at Yale-New Haven Transplantation Center

          Research Interests:Liver Transplantation; Acute Liver Failure; Wilson disease; Disorders of metal metabolism

          • Office:(203) 737-1592
          • Appt:(203) 785-2565

          Soroka, Carol J

          Senior Research Scientist in Medicine (Digestive Diseases)
          Technical Director, Liver Center Morphology Core

          Research Interests:Cholestatic liver diseases; Hepatocyte; Membrane transporters

          • Office:(203) 785-3154

          Spirli, Carlo

          Assistant Professor of Medicine (Digestive Diseases)

          • Office:(203) 737-6882
          • Lab:(203) 737-1451

          Taddei, Tamar Hamosh

          Associate Professor of Medicine (Digestive Diseases)

          Research Interests:Clinical, translational, and outcome research on hepatocellular carcinoma

          • Appt:(203) 200-4422

          Thrower, Edwin Charles

          Research Scientist in Medicine (Digestive Diseases) and Lecturer in Molecular Biophysics and Biochemistry

          Research Interests:Pancreatitis

          • Office:(203) 932-1x36 x3680

          Vender, Ronald J.

          Professor of Medicine (Digestive Diseases)
          Associate Dean for Clinical Affairs
          CMO, Yale Medical Group

          • Office:(203) 785-5404