James Lewis

James Lewis, MD, MSCE, is Professor of Medicine and Epidemiology, Senior Scholar in the Center for Clinical Epidemiology and Biostatistics, LDI Senior Fellow, Vice-Chief for Research (Clinical) in the Division of Gastroenterology and Hepatology at the University of Pennsylvania’s Perelman School of Medicine and Chief of Gastroenterology at Penn Presbyterian Medical Center in Philadelphia, Pennsylvania. Dr. Lewis is a gastroenterologist with a focus on caring for patients with inflammatory bowel diseases (IBD) and has conducted clinical research related to IBD for nearly 30 years. His reserach includes epidemiology studies focusing on optimal choice of therapies and treatment patterns and investigator-initiated multicenter clinical trials of medications and behavioral interventions, particulalry related to dietary patterns. His work has been funded by the NIH, AHRQ, CDC, PCORI, and numerous foundations and corporate sponsors. Dr. Lewis is the lead scientist for the Crohn's & Colitis Foundation’s IBD Plexus Research Program. He is an elected member of the American Society for Clinical Investigation and the Association of American Physicians. In 2016, he received the Sherman Prize for Excellence in Crohn’s and Colitis.

Millie D. Long MD, MPH earned her doctor of medicine degree at the University of Virginia. She completed a residency and chief residency in internal medicine at the University of Alabama at Birmingham. She then completed a gastroenterology fellowship at University of North Carolina. She also completed a fellowship in preventive medicine and a masters of public health in epidemiology at the Gillings School of Public Health. She is board certified in internal medicine, preventive medicine, and gastroenterology. She is currently Professor of Medicine in the Division of Gastroenterology and Hepatology at the University of North Carolina, as well as Chief of the Division.

Dr. Long’s clinical practice is at the UNC Multidisciplinary Inflammatory Bowel Diseases (IBD) center. Her research interests include prevention of complications of IBD, women’s health and clinical epidemiology. Dr. Long has contributed over 200 peer-reviewed publications, book chapters, and review articles to the literature. She co-authored the 2025 ACG ulcerative colitis guidelines. She serves Co-Editor in Chief of the American Journal of Gastroenterology.

Dr. Long is a fellow of the American College of Gastroenterology where she is a member of the Board of Trustees. She is also a fellow of the American Gastroenterological Association and a member of the Crohn’s and Colitis Foundation. Recipient of the 2024 Sherman Prize for Excellence in Crohn’s and Colitis. She is a member of the International Organization for the Study of IBD.

Dr. Kaplan is a Professor in the Cumming School of Medicine at the University of Calgary. Dr. Kaplan is a gastroenterologist who is internationally renowned for studying the global epidemiology of inflammatory bowel disease (IBD). As the corresponding author, he has published in prestigious journals such as Nature, The Lancet and JAMA. He is an Associate Editor of Gastroenterology and an Academic Editor of PLOS Med. Between 2020 and 2025 Clarivate, Web of Science named Dr. Kaplan a Highly Cited Researcher in recognition of being in the top one percent of cited researchers. Dr. Kaplan is a member of the International Organization for the study of IBD (IOIBD). Dr. Kaplan received Canadian Association of Gastroenterology’s Research Leader Award and was inducted into the Canadian Academy of Health Sciences.

Dr Nuru Noor is a Clinical Lecturer in Gastroenterology based at the University of Cambridge in the UK. He also works as a Postdoctoral Research Associate at the Medical Research Council Clinical Trials Unit - the largest academic clinical trials unit in Europe. He has a particular interest in novel clinical trial designs, having completed his PhD on this topic. He is keen to bring novel methodological approaches to the field of Gastroenterology, and in particular to IBD - which is his main area of clinical interest and expertise.

Bruce Sands, MD, MS is the Dr. Burrill B. Crohn Professor of Medicine at the Icahn School of Medicine at Mount Sinai, New York, NY. Dr. Sands is an expert in the management of IBD and has earned an international reputation for his care of patients with complex and refractory disease. Dr. Sands was awarded his BA and MD from Boston University, and trained in internal medicine at the Hospital of the University of Pennsylvania. After completing GI fellowship at the Massachusetts General Hospital, he joined the faculty of Harvard Medical School and served as the Acting Chief of the Gastrointestinal Unit at MGH before moving to Mount Sinai in 2010 as Chief of the Dr. Henry D. Janowitz Division of Gastroenterology. Dr. Sands is widely recognized for his innovative treatment of IBD and for his clinical investigations of new therapeutics. Dr. Sands' research also explores IBD epidemiology and includes the creation of a population-based cohort of IBD in Rhode Island. Dr. Sands is a past chair of the Clinical Research Alliance of the Crohn's & Colitis Foundation of America and served as Chair of the Immunology, Microbiology and Inflammatory Bowel Disease Section of the American Gastroenterological Association. Additionally, Dr. Sands was the Chair of the International Organization for the Study of IBD (IOIBD). In 2016 Dr. Sands was awarded the Dr. Henry Janowitz Lifetime Achievement Award from the Crohn’s & Colitis Foundation of America, that organization’s highest honor.

Prateek Sharma, MD, MASGE is currently Professor of Medicine at the University of Kansas School of Medicine. He completed his internal medicine residency at the Medical College of Wisconsin in Milwaukee and his gastroenterology fellowship at the University of Arizona in Tucson. Dr. Sharma has been at the forefront in improving diagnosis and management of GI diseases and cancer, specifically in advanced imaging and endoscopic treatments. He is a world-renowned physician, teacher, and educator who has been interviewed by the Wall Street Journal and Newsweek.

Dr. Sharma's research has focused on upper gastrointestinal diseases including Barrett's esophagus, esophageal cancer, and gastroesophageal reflux disease. He received the ACG Governors Award for Excellence in Clinical Research. He has over 400 publications, including original articles and book chapters, and is regularly invited to present at major national and international meetings. In addition, he has co-edited several important books. Dr. Sharma has and continues to publish in several high-profile national and international journals, including the New England Journal of Medicine, Annals of Internal Medicine, Gastrointestinal Endoscopy, Gastroenterology, and American Journal of Gastroenterology. Dr. Sharma is currently a Governing Board Member and Treasurer of the American Society for Gastrointestinal Endoscopy.

James Lewis, MD, MSCE, is Professor of Medicine and Epidemiology, Senior Scholar in the Center for Clinical Epidemiology and Biostatistics, LDI Senior Fellow, Vice-Chief for Research (Clinical) in the Division of Gastroenterology and Hepatology at the University of Pennsylvania’s Perelman School of Medicine and Chief of Gastroenterology at Penn Presbyterian Medical Center in Philadelphia, Pennsylvania. Dr. Lewis is a gastroenterologist with a focus on caring for patients with inflammatory bowel diseases (IBD) and has conducted clinical research related to IBD for nearly 30 years. His reserach includes epidemiology studies focusing on optimal choice of therapies and treatment patterns and investigator-initiated multicenter clinical trials of medications and behavioral interventions, particulalry related to dietary patterns. His work has been funded by the NIH, AHRQ, CDC, PCORI, and numerous foundations and corporate sponsors. Dr. Lewis is the lead scientist for the Crohn's & Colitis Foundation’s IBD Plexus Research Program. He is an elected member of the American Society for Clinical Investigation and the Association of American Physicians. In 2016, he received the Sherman Prize for Excellence in Crohn’s and Colitis.

Dr. Miguel Regueiro is the Enterprise Chief of Staff and Executive Vice President at Cleveland Clinic, and Professor in the Department of Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University.

Dr. Regueiro is the inaugural Chair holder of The Melody and Steve Golding Chair for Digestive Diseases. He served as the Global Chief for the Digestive Disease Institute from 2021 - 2026 before becoming Enterprise Chief of Staff. As Chief of Staff, he is responsible for shaping the healthcare strategy and vision for the national and international Cleveland Clinic sites. He oversees 6,000 physicians and 4.000 advanced practice providers across the enterprise.

Dr. Regueiro’s main clinical and research interest is Inflammatory Bowel Diseases (IBD) with a focus on the natural course and medical-surgical management of Crohn’s disease and ulcerative colitis. He leads research on postoperative prevention of Crohn’s disease, as well as developing new models of healthcare, including the first-of-its kind specialty medical home for IBD.

Dr. Jean Ashburn is an Associate Professor of Surgery and a Faculty Colorectal surgeon at Atrium Health Wake Forest in Winston-Salem, NC. She is a graduate of Wake Forest University School of Medicine and finished her residency in General Surgery at the University of North Carolina at Chapel Hill. She then completed a fellowship in Colorectal Surgery at the Cleveland Clinic Foundation in Cleveland, Ohio, where she was a staff surgeon prior to joining the Department of Surgery at Wake Forest Baptist Medical Center. She has particular clinical and research interests in complex inflammatory bowel disease and J pouch surgery, reoperative pelvic surgery, and corrective/restorative surgery of the lower gastrointestinal tract.

Edward L. Barnes, MD, MPH is an Associate Professor of Medicine in the Division of Gastroenterology & Hepatology and Co-Director of the Multidisciplinary Inflammatory Bowel Diseases Center at the University of North Carolina of Chapel Hill. Dr. Barnes received his undergraduate and medical degrees from the University of South Carolina. He completed his internship, residency, and chief residency in internal medicine at the University of North Carolina. He completed his gastroenterology fellowship at Brigham and Women’s Hospital in Boston, Massachusetts. During his gastroenterology fellowship, Dr. Barnes received a Master of Public Health from the Harvard TH Chan School of Public Health. Following his gastroenterology fellowship, Dr. Barnes completed a one year advanced fellowship in inflammatory bowel disease at the University of North Carolina.

Dr. Barnes has a research interest in the epidemiology and clinical outcomes of patients with inflammatory bowel disease. He has a particular interest in improving our understanding of inflammatory conditions of the pouch after restorative proctocolectomy with ileal pouch-anal anastomosis (IPAA). He has received funding from the National Institutes of Health, Crohn’s & Colitis Foundation, American College of Gastroenterology, and American Gastroenterological Association to study clinical outcomes of patients with pouchitis and other pouch-related conditions and to investigate predictors of a complicated disease course after IPAA. Dr. Barnes is the 2021 Sherman Emerging Leader Prize recipient.

Jami Kinnucan, MD, is an inflammatory bowel disease (IBD) specialist who joined the Mayo Clinic Florida practice in January 2021 as an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology. She currently serves as the Clinical Practice Chair for the Division of Gastroenterology & Hepatology, Associate Chair for Digital Transformation and Practice Integration for the Department of Medicine and Medical Director for Plummer Chart Ambulatory Communication Solutions team. She is also the Director of the IBD Intestinal Ultrasound Program at Mayo Clinic Florida. She has been recognized as a fellow of the American College of Gastroenterology (ACG), American Gastroenterological Association (AGA), and Crohn's and Colitis Foundation. She is a former member of the ACG Board of Governors for the state of Michigan and the ACG Women in Gastroenterology Committee. She is active in the Crohn’s and Colitis Foundation and previous Co-Chair for the Women in IBD Task Force and prior member of the Government and Industry Affairs Committee for the National Scientific Advisory Committee. Dr. Kinnucan is the co-founder of the Michigan GI Society in 2020 and, most recently, co-founded the Florida Women in GI (2022) and Gastro Digital Health (2024) She serves as Associate Editor for the Crohn’s and Colitis 360 Journal. She is actively involved with research looking at the impact of cannabis in IBD and received a 2024 Mayo Clinic STARDOM award to evaluate the use of virtual reality on the impact of pain in patients with abdominal pain and Crohn’s disease.

James Lewis, MD, MSCE, is Professor of Medicine and Epidemiology, Senior Scholar in the Center for Clinical Epidemiology and Biostatistics, LDI Senior Fellow, Vice-Chief for Research (Clinical) in the Division of Gastroenterology and Hepatology at the University of Pennsylvania’s Perelman School of Medicine and Chief of Gastroenterology at Penn Presbyterian Medical Center in Philadelphia, Pennsylvania. Dr. Lewis is a gastroenterologist with a focus on caring for patients with inflammatory bowel diseases (IBD) and has conducted clinical research related to IBD for nearly 30 years. His reserach includes epidemiology studies focusing on optimal choice of therapies and treatment patterns and investigator-initiated multicenter clinical trials of medications and behavioral interventions, particulalry related to dietary patterns. His work has been funded by the NIH, AHRQ, CDC, PCORI, and numerous foundations and corporate sponsors. Dr. Lewis is the lead scientist for the Crohn's & Colitis Foundation’s IBD Plexus Research Program. He is an elected member of the American Society for Clinical Investigation and the Association of American Physicians. In 2016, he received the Sherman Prize for Excellence in Crohn’s and Colitis.