A program of the AGA Institute
Participating Faculty Members
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Charles Bernstein, MD
Professor of Medicine
University of Manitoba School of Medicine

 
Charles N. Bernstein received his MD and was certified in internal medicine at the University of Manitoba. He held a faculty position at UCLA before taking a position at the University of Manitoba. He is currently a professor of medicine, head of the section of gastroenterology, and director of the gastroenterology fellowship training program and director of the University of Manitoba Inflammatory Bowel Disease Clinical and Research Centre.

In 1995 the Centre established the only population based database of IBD in Canada, and the largest in North America. This population based database has been used to define types and rates of comorbidity, to conduct a case control study of over 1000 subjects exploring disease etiology and recently to establish a prospective cohort to examine determinants of disease outcome. Currently Dr. Bernstein holds a CIHR Investigator Award and a Crohn's and Colitis Foundation of Canada Research Scientist Award.

Alan Buchman, MD
Associate Professor of Medicine
Northwestern University Feinberg School of Medicine

 
Alan Buchman, MD, is an associate professor of medicine at the Feinberg School of Medicine, Northwestern University in Chicago where he directs their Inflammatory Bowel Disease Center. Dr. Buchman took his undergraduate training at Northwestern and obtained his medical degree at the Chicago Medical School. After a residency at Cedars Sinai Medical Center in Los Angeles, he completed a fellowship in Clinical Nutrition with Dr. Marvin Ament at UCLA and also received his MS in public health. Following this, Dr. Buchman completed a fellowship in Gastroenterology at Emory University and served on the faculties of the Baylor College of Medicine and the University of Texas at Houston Medical School prior to coming to Northwestern. He has served on 10 peer-reviewed journal editorial boards and has authored over 120 peer-reviewed articles, editorials, book chapters and books, including the AGA's position paper on short bowel syndrome and intestinal transplantation. His research focuses on the complications of intestinal failure and long-term parenteral nutrition. Dr. Buchman is considered a world authority in intestinal failure.
Russell Cohen, MD
Associate Professor of Medicine
University of Chicago School of Medicine

 
Russell Cohen, MD, was born in New York, attended Cornell University for his undergraduate studies, and received his medical degree with honors from the Mount Sinai School of Medicine. He completed an internship and residency in internal medicine at Harvard Medical School's Beth Israel Hospital, and then a fellowship in gastroenterology at the University of Chicago, where he was also a health studies scholar. Dr. Cohen joined the faculty of the section of gastroenterology in the department of medicine at the University of Chicago in 1996. He currently serves as associate professor of medicine and co-director of clinical inflammatory bowel disease.

Dr. Cohen's research interests are primarily involved in 2 major areas of clinical gastroenterology: inflammatory bowel diseases (IBD) and health care outcomes. His studies in IBD include investigations of both standard and experimental pharmacological therapies, including novel immunomodulatory agents, as well as studies analyzing the economics involved in the diagnosis and treatment of IBD.

James M. Church, MD
Head of Section of Colorectal Endoscopy
Cleveland Clinic Foundation

 
James M. Church, MD, is director of the David G. Jagelman Inherited Colorectal Cancer Registries and head of the section of colorectal endoscopy at the Cleveland Clinic Foundation.

Dr. Church earned his BS and MD at the University of Auckland School of Medicine in New Zealand. He served his residency at the Aukland Hospital Board Group, and his fellowship with the Cleveland Clinic Foundation and the Aukland Hospital Board Group.

Douglas T. Dieterich, MD
Professor of Medicine
David Geffen School of Medicine at UCLA
Marla C. Dubinsky, MD
Assistant Professor of Pediatrics
University of California at Los Angeles School of Medicine

 
Marla C. Dubinsky, MD, is the director of the Pediatric Inflammatory Bowel Disease Center (IBD) at Cedars-Sinai Medical Center. In addition, Dr. Dubinsky is an assistant professor of pediatrics at the University of California, Los Angeles (UCLA), School of Medicine.

Dr. Dubinsky's main research interests are health outcomes and the epidemiology and genetic influences of IBD in children. Her objective is to study the influence of genetics and immune responses on the variability in clinical presentations of early onset IBD. Additional interests include the study of pharmacogenetics to evaluate how heredity influences drug responses and attempt to optimize and individualize the management of IBD.

Dr. Dubinsky received her BS from the University of Western Ontario and her MD from Queen's University in Canada. She completed her clinical pediatric gastroenterology training in Montreal, Canada.

Dr. Dubinsky is a board member and co-chair of CCFA's patient education committee, and is also a member of CCFA's pediatric affairs committee. Additionally, she is also a member of the CCFA task force on challenges in IBD research, and she serves as chair of the medical advisory committee for CCFA's Greater Los Angeles chapter.

Dr. Dubinsky is the author or co-author of numerous peer-reviewed research papers, book chapters, and abstracts. She is currently an ad hoc reviewer for Gastroenterology, American Journal of Gastroenterology, Journal of Pediatric Gastroenterology and Nutrition and Inflammatory Bowel Diseases. She is also a section editor for Pediatrics of Inflammatory Bowel Disease.

Jonathan Fryer, MD
Intestinal Transplant Surgeon
Northwestern Memorial Hospital

 
Jonathan P. Fryer, MD, specializes in organ transplant surgery at Northwestern Memorial Hospital, and is an assistant professor of surgery at the Northwestern University Feinberg School of Medicine. Dr. Fryer earned his BA and MD at the University of Manitoba, and served his residency at Manitoba Affiliated Hospitals. He also served an organ transplantation fellowship at the University of Minnesota and a transplant surgery fellowship at the University of Western Ontario.

Dr. Fryer is a member of the liver and intestine subcommittee of the Regional Organ Bank of Illinois as well as the research subcommittee. He is on the editorial boards of Intestine and Xenotransplantation. He is also on the information and data committee of the American Society of Transplant Surgeons.

Stephen Hanauer, MD
Professor of Medicine and Clinical Pharmacology
University of Chicago School of Medicine

 
Stephen Hanauer, MD, is a world leader in the treatment of inflammatory bowel diseases.

Dr. Hanauer is the past chair of the immunology, microbiology and inflammatory bowel disease section of the American Gastroenterolgoical Association. He is the recipient of the AGA's Fiterman Award for Clinical Research.

Dr. Hanauer previously served as a member and chair of the Food and Drug Administration gastrointestinal drugs advisory committee and currently chairs the International Organization for Inflammatory Bowel Disease.

Dr. Hanauer is a member of the Crohn's and Colitis Foundation of America's National Scientific Advisory Committee.

Kim L. Isaacs, MD, PhD
Associate Professor of Medicine
Division of Digestive Diseases and Nutrition
University of North Carolina

 
Kim L. Isaacs, MD, PhD, is an Associate Professor of Medicine in the Division of Digestive Diseases and Nutrition at the University of North Carolina at Chapel Hill School of Medicine. She is also the Director of the GI Fellowship Program for UNC Hospitals and the University of North Carolina School of Medicine.

Dr. Isaacs earned her BS in Biochemistry, her PhD in Basic Health Sciences/Pathology and her MD at the State University of New York at Stony Brook. She continued her postgraduate education in internal medicine at the University of North Carolina at Chapel Hill, including a fellowship in the Division of Digestive Diseases and Nutrition.

Dr. Isaacs is a member of the Professional Education Committee of the National Crohn's and Colitis Foundation. She also serves as an ad hoc reviewer on the CCFA National Grants Review Committee. She is a recent recipient of the CCFA's Premier Physician Award.

Dr. Isaacs is the author or co-author of numerous journal articles, abstracts, and editorials, in addition to contributions to textbooks, book reviews, papers and exhibits. She is an Associate Editor and Section Editor of Inflammatory Bowel Diseases and a manuscript peer reviewer with Digestive Diseases and Science, Gastroenterology, American Journal of Gastroenterology, Gastrointestinal Endoscopy, Journal of General Internal Medicine, and Inflammatory Bowel Diseases.

Kishore Iyer, MD
Intestinal Transplant Surgeon
Children's Memorial Hospital in Chicago

 
Kishore Iyer, MD, is the director of the intestinal transplantation and rehabilitation program at Children's Memorial Hospital in Chicago, and has his academic appointment at Northwestern University's Feinberg School of Medicine in Chicago. He obtained his undergraduate medical degree from the University of Madras, India and then received his general and pediatric surgical training in the United Kingdom.

Dr. Iyer trained with Dr. Adrian Bianchi in Manchester where he developed his interest in the surgical management of short bowel syndrome and then pursued a research fellowship at the Hospitals for Sick Children, Great Ormond Street, London, investigating the role of plant sterols and lipid in the development of TPN-associated liver disease. This work led to a prize (BAPS Prize) from the British Association of Pediatric Surgeons in 1996.

Since moving to the US in 1996, Dr. Iyer undertook a fellowship in transplant surgery at Rush Medical Center and a further fellowship in pediatric and intestinal transplantation in Omaha. He was on faculty as a liver and intestinal transplant surgeon in Omaha before moving to Chicago to his current assignment.

Dr. Iyer's clinical interests remain within intestinal transplantation and in the non-transplant surgical management of short bowel syndrome. Dr Iyer received the Fellowship of the Royal College of Surgeons of England (FRCS) in 1989 and the Fellowship of the American College of Surgeons (FACS) in 2003.

Ira M. Jacobson, MD
Professor of Medicine
Weill Medical College of Cornell University
Samuel Klein, MD
Professor of Medicine
Washington University School of Medicine

 
Samuel Klein, MD, is the director of the Washington University Center for Human Nutrition, associate program director of the General Clinical Research Center, and medical director of the Barnes-Jewish Hospital Nutrition Support Service. He is also a professor of medicine at Washington University School of Medicine in St. Louis.

Dr. Klein received his MD from Temple University Medical School, and an MS in nutritional biochemistry and metabolism from the Massachusetts Institute of Technology. He completed his residency training in internal medicine and a clinical nutrition fellowship at University Hospital in Boston. He also completed a nutrition research fellowship at Harvard Medical School in Boston and a gastroenterology fellowship at the Mount Sinai Hospital in New York.

Dr. Klein's primary research is focused on the regulation of metabolism, particularly lipid metabolism in obesity.

Donald Kotler, MD
Professor of Medicine
Columbia University School of Medicine
Asher Kornbluth, MD
Associate Clinical Professor of Medicine
Mount Sinai School of Medicine

 
Asher Kornbluth, MD, is an associate clinical professor of medicine at the Mount Sinai School of Medicine. Dr. Kornbluth earned his MD at the State University of New York Health Science Center. He completed his residency at the Bronx Municipal Hospital Center and his fellowship in gastroenterology at the Mount Sinai Medical Center.
Joshua R. Korzenik, MD
Assistant Professor of Medicine
Harvard Medical School

 
Joshua Korzenik, MD, is on faculty with the gastrointestinal unit at Massachusetts General Hospital, where he is co-director of the inflammatory bowel disease center and director of translational research. He received his MD from Albert Einstein College of Medicine and completed his internship and residency at Beth Israel Hospital in Boston.

Dr. Korzenik worked as a research fellow at the All-India Institute of Medical Science in New Delhi, India before completing his GI fellowship in clinical epidemiology at Yale. He remained on faculty at Yale for three years before joining the gastroenterology division faculty at Washington University School of Medicine. While at Washington University, he was involved in studying several novel agents for the treatment of Crohn's disease and ulcerative colitis. He recently joined the faculty at Harvard Medical School and works at Massachusetts General Hospital.

Gary R. Lichtenstein, MD
Professor of Medicine
University of Pennsylvania School of Medicine

 
Gary R. Lichtenstein, MD is a professor of medicine at the University of Pennsylvania School of Medicine and director of the inflammatory bowel disease program.
Dr. Edward Loftus

 
James F. Marion, MD
Assistant Clinical Professor
Mount Sinai School of Medicine
 
Dr. Marion earned his BA in biochemistry at the University of California and his MD from Columbia University College of Physicians and Surgeons. He completed his residency in internal medicine at New York Presbyterian Hospital and his fellowship in Gastroenterology at Mount Sinai Hospital. He is currently in private practice in Manhattan. He is very active in clinical research.

Dr. Marion is a member of the Scientific Advisory Committee of the New York Chapter of the Crohn's and Colitis Foundation of America, as well as the National Patient Education committee of the CCFA.

Dr. Marion is the author of numerous articles, book chapters, lectures, and other publications.

Paul Martin, MD
Professor of Medicine
David Geffen School of Medicine at UCLA
Scott Eric Plevy, MD
Associate Professor of Medicine University of North Carolina School of Medicine Chapel Hill, NC

Scott Plevy, MD, is an Associate Professor of Medicine at the University of North Carolina School of Medicine, Division of Gastroenterology and Hepatology. He is the Director of the University of North Carolina Federation of Clinical Immunology Societies (FOCIS) Center of Excellence. Dr. Plevy was formerly Co-Director of the Inflammatory Bowel Disease Center at the University of Pittsburgh School of Medicine.

Dr. Plevy received his medical degree from Columbia University College of Physicians and Surgeons, New York, New York. He completed a residency in internal medicine at Brigham and Women's Hospital, Boston, Massachusetts. He subsequently completed a clinical fellowship in gastroenterology at the University of California at Los Angeles (UCLA), and postdoctoral research fellowships at the Inflammatory Bowel Disease Research Laboratory, Cedars-Sinai Medical Center, Los Angeles, and at the Howard Hughes Medical Institute, Department of Microbiology and Immunology, UCLA School of Medicine, Los Angeles, California.

Dr. Plevy has contributed significantly to the medical literature on Crohn's disease and ulcerative colitis. He is the author of numerous original articles, abstracts and book chapters. Journals in which his work has appeared include the Journal of Experimental Medicine, Journal of Biological Chemistry, Immunity, Science, Molecular and Cellular Biology, Gastroenterology, and The Journal of Immunology. Dr. Plevy has served as basic science section editor for Inflammatory Bowel Diseases and is a reviewer for numerous scientific and clinical journals. He has been the principle investigator for numerous ulcerative colitis and Crohn's disease clinical trials. His research interests include inflammatory bowel disease, innate immunity, cytokine biology, and inflammation.

David Rubin, MD
Assistant Professor of Medicine
University of Chicago School of Medicine

 
David T. Rubin, MD, is an assistant professor of medicine at the University of Chicago School of Medicine. He is also director of clinical education for Gastroenterology, and associate program director for both the fellowship in Gastroenterology, Hepatology and nutrition and the internal medicine residency program.

Dr. Rubin earned his MD at the University of Chicago Pritzker School of Medicine, and his BS in biology at the University of Illinois at Urbana-Champaign. He is a member of the American Gastroenterological Association, and serves on the committee on trainees and young gastroenterologists as editor of the trainee newsletter. He also serves as on the committee on publications and informatics as editor of the AGA web page. Dr. Rubin is on the professional issues committee of the American College of Gastroenterologists. He actively works with the Crohn's and Colitis Foundation of America on the educational committee of the Illinois Chapter and as chair of their professional program.

Dr. Rubin is the author of numerous peer-reviewed publications, chapters, reviews, and abstracts. He is a frequent invited lecturer and invited reviewer for journals including Clinical Gastroenterology and Hepatology and Inflammatory Bowel Disease.

Ellen J. Scherl, MD
Assistant Professor of Medicine
Weill Medical College of Cornell University

 
Ellen J. Scherl, MD, is an assistant professor of medicine and an assistant attending physician at the New York Presbyterian Hospital-Weill Medical College of Cornell University, specializing in the medical treatment of ulcerative colitis and Crohn's disease. In her role as director of the Inflammatory Bowel Disease Center, she helped establish a tissue bank for IBD at Cornell. The IBD Center is committed to clinical practice and research as well as the pathobiology of inflammatory bowel disease.

Dr. Scherl graduated from Barnard College, Columbia University. She completed her internship and residency training at Beth Israel Medical Center and her fellowship in gastroenterology at the Mount Sinai Medical Center, where she remained as a member of the full-time faculty. She is board certified in internal medicine and gastroenterology. Dr. Scherl has contributed numerous articles, reviews, commentaries and book reviews on inflammatory bowel disease. She is the principal investigator and participates in numerous clinical trials involving the treatment of inflammatory bowel disease. On the New York Society for Gastrointestinal Endoscopy (NYSGE) faculty since 1986, she has been both president and director of their Annual Course.

Through her affiliation with the New York branch of the Crohn's and Colitis Foundation (CCFA) beginning 1983, she has helped to develop such curricula as the CCFA Annual IBD Education Day, IBD Coping Seminar Series, Intracity Rounds for GI Fellows, and the first Intracity Symposium on the Doctor-Patient Relationship. Dr. Scherl was the recipient of the CCFA's Woman of Distinction Award in 1996. She is past president and council member of NYSGE, chair of the Board of Trustees for the CCFA in NYC, also serving on the executive committee, and vice president of the medical advisory committee. She is also a fellow of the American College of Physicians and a member of the American College of Gastroenterology, the New York Academy of Sciences, the American Association for the Advancement of Science, and on the executive committee of the Scleroderma Federation Medical and Scientific Advisory Board.

Chinyu Su, MD
Assistant Professor of Medicine
University of Pennsylvania School of Medicine

 
Chinyu Su, MD, is a gastroenterologist with the Hospital of the University of Pennsylvania, and an assistant professor of medicine at the University of Pennsylvania School of Medicine.

After earning her medical degree in 1994 from Albert Einstein College of Medicine in the Bronx, NY, Dr. Su completed her internship and residency in internal medicine at the University of Michigan Medical Center in Ann Arbor, MI. That was followed by a four-year fellowship in Gastroenterology at the Hospital of the University of Pennsylvania (HUP) in Philadelphia that included two years of basic science research on inflammatory bowel disease.

Dr. Su's current research interest and the focus of her clinical practice is inflammatory bowel disease. Her clinical research activities focus on assessment of the disease and efficacy and monitoring of drug therapy. In 2000, Dr. Su received the ADHF/AGA AstraZeneca Fellowship/Faculty Transition Award and in 2001 she was awarded the ACG/Centocor IBD Abstract Award at the American College of Gastroenterology Annual Meeting.

Dr. Su has co-authored original research studies and abstracts in peer-reviewed journals and co-written editorials, reviews and chapters for print publications. She holds memberships in a number of national professional societies, including the American Gastroenterological Association, the American College of Gastroenterology, and the Crohn's and Colitis Foundation of America.

Harland S. Winter, MD
Associate Professor of Pediatrics
Harvard Medical School

 
Harland S. Winter, MD, is an associate professor of pediatrics at Harvard Medical School, and the director of the Massachusetts General Hospital Inflammatory Bowel Disease Center. Dr. Winter earned his MD at the University of California at Los Angeles School of Medicine.
Teresa L. Wright, MD
Professor of Medicine
UCSF School of Medicine