Kelly Issokson

Raymond K. Cross, MD, MS, AGAF, FACG completed undergraduate training at Washington and Jefferson College and attended medical school at the University of Pittsburgh. He completed internal medicine residency and gastroenterology and Hepatology fellowship training at the University of Maryland Medical Center and Baltimore Veterans Affairs. Prior to fellowship, he was a Chief Medical Resident. He obtained a Master’s Degree in Clinical Research at the University of Maryland, Baltimore. He joined the faculty at the University of Maryland and served as Director of the Inflammatory Bowel Disease Program from 2004 to 2024. In July 2024, he joined the faculty at the Melissa L. Posner Institute for Digestive Health & Liver Disease at Mercy Medical Center where he is Director of the Center for Inflammatory Bowel and Colorectal Diseases.
He has published over 200 peer reviewed manuscripts, review articles, and book chapters and has obtained research funding from the Agency for Healthcare Research and Quality, the Crohn’s and Colitis Foundation, and the American College of Gastroenterology. He is past Chair of the Patient Education and Clinical Research Committees and Clinical Research Alliance for the Foundation. He is the Co-Chair of the Regional Advances in Inflammatory Bowel Disease Course, Scientific Co-Director of the CorEvitas Registry, and past Course Director for the American College of Gastroenterology’s Eastern Regional Course. He is Governor for Maryland for the American College of Gastroenterology, a member of the American College of Gastroenterology’s Research Committee, and Senior Associate Editor of the American Journal of Gastroenterology.

Dr. Sara Horst MD, MPH, FACG, AGAF is a Professor in the division of Gastroenterology, Hepatology, & Nutrition at Vanderbilt University Medical Center. Dr. Horst completed her medical school and residency training at The Ohio State University and then went to Vanderbilt University Medical Center for Gastroenterology Fellowship and to obtain her Masters of Public Health. She joined the faculty at Vanderbilt University Medical Center in 2011. She is involved in clinical care of complex IBD care, complex amyloid care, clinical research, and teaching and mentoring medical students and housestaff. She is the medical director for VUMC Specialty Pharmacy, VUMC Telehealth director, and VUMC Associate Vice Chair of Clinical Affairs for Dept of Medicine. Her research interests involve enhancing EHR efficiencies in the care of IBD, telehealth in IBD, and medication adherence in IBD. She has extensively published in peer reviewed journals. She is also involved in clinical care improvement as an EPIC Physician Builder and is on the National EPIC GI Steering Board. She is an associate editor for American Journal of Gastroenterology.

Dr. Hudesman is Director of the Inflammatory Bowel Disease Center at NYU Langone Health. He is Professor of Medicine at the NYU School of Medicine.

Dr. Hudesman specializes in the diagnosis and treatment of inflammatory bowel disease (IBD) and in the provision of integrated, seamless, patient-centered care. His research is focused on the development of biomarkers and evaluation and optimization of new medical therapies for the treatment of both Crohn’s disease and ulcerative colitis.

Dr. Hudesman served on the Educational Affairs Committee of the American College of Gastroenterology, and the Professional Membership Committee of the Crohn’s Colitis Foundation, and is currently on the Quality Committee of the American Gastroenterological Association.

Kelly Issokson, MS, RD, CSDH, LDN, CNSC is the Senior Registered Dietitian of Outpatient Nutrition at the University of California, San Francisco (UCSF) and a nationally recognized expert in gastrointestinal nutrition. With over 17 years of clinical experience, she specializes in inflammatory bowel disease (IBD) and surgical nutrition. Ms. Issokson graduated magna cum laude from Johnson & Wales University and earned her MS in Nutrition from California State University, Northridge. She serves on the National Board of the Crohn’s & Colitis Foundation and is a leading voice in advancing nutrition as part of multidisciplinary IBD care. She co-developed the Cedars-Sinai IBD Prehabilitation Program and nutrition education training programs for physicians, APPs, and RDs.

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.

Jessiy Salwen-Deremer, Ph.D., DBSM, is the Director of Behavioral Medicine for Digestive Health at Dartmouth-Hitchcock Medical Center and Assistant Professor of Psychiatry & Medicine at the Geisel School of Medicine at Dartmouth. Dr. Salwen-Deremer earned her Ph.D. in clinical psychology at Stony Brook University and completed her fellowship training in behavioral medicine at the Johns Hopkins School of Medicine. Her areas of clinical expertise include behavioral sleep medicine and gastropsychology. Her research expertise encompasses two areas: understanding the impact of sleep disorders on inflammatory bowel diseases and improving access to gastrointestinal behavioral health care. Across both of these areas, she focuses on the integration of telehealth and remote technologies to enhance patient engagement and participation.

Maria T. Abreu, MD, is a physician-scientist and gastroenterologist who specializes in inflammatory bowel diseases (IBD). She received her medical degree from the University of Miami School of Medicine and completed a residency in medicine at the Brigham and Women’s Hospital. She served as an Associate Professor of Medicine at Mount Sinai School of Medicine (and head of their IBD Center), a Professor of Medicine and Microbiology & Immunology at the University of Miami School of Medicine (and Director of the Crohn’s and Colitis Center), and currently is the Executive Director of the F. Widjaja IBD Institute at Cedars-Sinai Medical Center; in past years, she has served as the President of the American Gastroenterological Association (AGA) and the Chair of the International Organization for the Study of Inflammatory Bowel Diseases (IOIBD). Dr. Abreu has 30 years of leadership experience in basic, translational, and clinical research, and has authored almost 300 peer-reviewed articles, book chapters, and reviews. Her work has received multiple awards, including the 2019 Sherman Prize from the Bruce and Cynthia Sherman Charitable Foundation for outstanding achievements in IBD and Healio’s Lifetime Disruptor Award for addressing critical unmet needs in IBD. Her research focuses on interactions between the gut microbiome and the innate immune system in the development of IBD and IBD-associated colon cancer. Currently, Dr. Abreu’s team is investigating how diet may shape the gut microbiome and alleviate IBD symptoms. Understand the underlying mechanisms can help us develop targeted treatment strategies to help patients live their best lives.

Dr. Cheifetz is Director of the Center for Inflammatory Bowel Disease and Medical Director of Infusion Services at Beth Israel Deaconess Medical Center and Professor of Medicine at Harvard Medical School. He is also Director of the Harvard Medical School Gastroenterology Clerkship Elective and Associate Director of the Advanced Fellowship in Inflammatory Bowel Disease at Beth Israel Deaconess Medical Center.
Dr. Cheifetz specializes in the treatment of Crohn’s disease, ulcerative colitis, and other inflammatory bowel diseases. In addition to his clinical work, he is involved in multiple research projects relating to IBD and has published over 250 articles and chapters on the subject. His research currently focuses on optimizing the use of biologics through the proactive use of drug concentrations and antibodies, and he has published extensively in this area. Dr. Cheifetz was the first to demonstrate that proactive monitoring of infliximab and adalimumab concentrations and dosing to a therapeutic window improves outcomes when compared to standard of care. Dr. Cheifetz lectures nationally and internationally on IBD. Dr. Cheifetz is also actively involved in teaching and mentoring medical students, residents, and fellows, and is proud to have trained numerous physicians who now specialize in IBD and direct their own centers.

Dr. Fichera earned his M.D. from the Catholic University of Rome, completed General Surgery Residency at the University of Chicago and two year fellowship in laparoscopic and colorectal surgery at Mt. Sinai School of Medicine in New York. He returned to the University of Chicago where he started and became the first Program Director of the Colon and Rectal Surgery Training Program. He moved to the University of Washington in July 2012 as chief of colorectal surgery and was appointed chief of the section of Gastrointestinal Surgery in 2014 and in 2016 the clinical director of Gastrointestinal Oncology at the Seattle Cancer Care Alliance. In November 2017 he moved to University of North Carolina as the Division Chief of Gastrointestinal Surgery. In September 2019 he became the Division Chief of Colorectal Surgery at Baylor University Medical Center in Dallas, Texas and the Surgery Safety and Quality Officer since July 2020. His clinical and research interest include colorectal cancer and inflammatory bowel disease

Kelly Issokson, MS, RD, CSDH, LDN, CNSC is the Senior Registered Dietitian of Outpatient Nutrition at the University of California, San Francisco (UCSF) and a nationally recognized expert in gastrointestinal nutrition. With over 17 years of clinical experience, she specializes in inflammatory bowel disease (IBD) and surgical nutrition. Ms. Issokson graduated magna cum laude from Johnson & Wales University and earned her MS in Nutrition from California State University, Northridge. She serves on the National Board of the Crohn’s & Colitis Foundation and is a leading voice in advancing nutrition as part of multidisciplinary IBD care. She co-developed the Cedars-Sinai IBD Prehabilitation Program and nutrition education training programs for physicians, APPs, and RDs.

Dr. Amanda Ricciuto completed her medical degree and General Paediatrics training in Montreal at McGill University. She then moved to Toronto to complete fellowship training in Paediatric Gastroenterology at SickKids, including advanced training in the management of paediatric inflammatory bowel disease (IBD). During that time, she obtained a PhD in Clinical Epidemiology and Health Care Research at the Institute of Health Policy, Management and Evaluation at the University of Toronto. Her PhD focused on IBD-associated liver disease, with an emphasis on primary sclerosing cholangitis (PSC).

Areas of Specialty
Dr. Ricciuto’s areas of specialty include paediatric inflammatory bowel disease and IBD-associated liver disease, particularly primary sclerosing cholangitis.

Research Interests
Dr. Ricciuto’s research interests include paediatric IBD generally, as well as the complex inter-relationship between IBD and primary sclerosing cholangitis. Her work has served to better delineate the phenotype of PSC-associated IBD in children and to guide monitoring strategies in this population. From a methodologic standpoint, she has expertise in longitudinal data analysis.

Corey A. Siegel, MD, MS, is the Director of the Walter and Carole Young Center for Digestive Health at the Dartmouth Hitchcock Medical Center in Lebanon, New Hampshire. He is the Constantine and Joyce Hampers Professor of Medicine and a Professor at The Dartmouth Institute for Health Policy and Clinical Practice at the Geisel School of Medicine at Dartmouth.

Dr. Siegel received his medical degree from Tufts University School of Medicine in Boston, Massachusetts. He completed his residency in internal medicine at the Dartmouth Hitchcock Medical Center where he also served as chief medical resident. He then completed a fellowship in Gastroenterology at Dartmouth Hitchcock followed by a fellowship in Inflammatory Bowel Disease at Massachusetts General Hospital in Boston.

Dr. Siegel’s research interests include understanding risk/benefit tradeoffs in IBD, developing models to predict outcomes in Crohn’s disease, creating tools to facilitate shared decision making, expanding telemedicine services to patients with IBD living in rural locations, and improving the quality of care delivered to patients with IBD. He has been funded by the NIH, AHRQ, the Crohn’s and Colitis Foundation, and the Leona M. and Harry B. Helmsley Charitable Trust for this work. Dr. Siegel is the founder of the BRIDGe group, an international research collaborative of IBD investigators. Dr. Siegel was inducted into the International Organization for the Study of IBD (IOIBD) in 2013 and he received the Sherman Prize in 2023. He lives in Hanover, New Hampshire with his wife and three boys.

Neilanjan Nandi, MD, FACG, AGAF, FCCF, FACP is an Associate Professor of Clinical Medicine at the Perelman School of Medicine, University of Pennsylvania and is the Co-Section Head and Direcotr of Clinical Operations of the University of Pennsylvania Inflammatory Bowel Disease Program. Dr. Nandi specializes in the complex management of Crohn's disease, Ulcerative Colitis and recurrent C. difficile infection (C difficile). He has also authored numerous abstracts, publications and book chapters on the diagnosis and management of IBD, C difficile and various viral, parasitic, mycobacterial and bacterial infections of the GI tract. Aligning with his interests, Dr. Nandi has conducted several clinical trials focused on the clinical impact of stool derived microbiome therapies in C difficile and IBD. Dr. Nandi servies on the Philadelphia/Delaware Valley Crohn's & Colitis Foundation (CCF) Executive Council and on the Medical Advisory Board of the United Ostomy Associates of America (UOAA). He is a founding non-profit board member and Chair of the South Asian IBD Alliance (SAIA) which elevates culturally competent care in South Asian IBD. He has been recognized with the 2019 Philly Take STeps Physician Hero, the 2022 CCF's National Chairman’s Citation Award and the 2024 CCF's Gold Medallion Physician Award. He is the honored recipient of the 2023 Sidney Cohen GI Faculty Teaching Award and the 2024 Radhika Srinivasan GI Faculty award for Professionalism and Humanism at the Perelman School of Medicine.

Jessiy Salwen-Deremer, Ph.D., DBSM, is the Director of Behavioral Medicine for Digestive Health at Dartmouth-Hitchcock Medical Center and Assistant Professor of Psychiatry & Medicine at the Geisel School of Medicine at Dartmouth. Dr. Salwen-Deremer earned her Ph.D. in clinical psychology at Stony Brook University and completed her fellowship training in behavioral medicine at the Johns Hopkins School of Medicine. Her areas of clinical expertise include behavioral sleep medicine and gastropsychology. Her research expertise encompasses two areas: understanding the impact of sleep disorders on inflammatory bowel diseases and improving access to gastrointestinal behavioral health care. Across both of these areas, she focuses on the integration of telehealth and remote technologies to enhance patient engagement and participation.

Dr. Aline Charabaty is Professor of Medicine at the University of Maryland and the Director of the IBD Program at the University of Maryland Medical center. She is the Editor-in-Chief of the Crohn’s and Colitis 360 journal, and is past Vice-Chair of the AGA Research Foundation Executive Board, and past ACG Governor for Washington DC. Her work and advocacy were recognized by the Crohn’s and Colitis Foundation Excellence in Medicine Award in 2020 , the ACG Diversity Equity and Inclusion Award in 2025, and the AGA Beacon of Hope Award in 2026. Dr Charabaty uses social media to amplify medical education in IBD and is the founder of @MondayNightIBD a CME platform on twitter for which she received the Healio Disruptive Innovator Award in 2019. Dr Charabaty is a strong advocate for diversity and the professional advancement of women in GI. She is the Co-Founder of Scrubs & Heels, a foundation focused on empowering women in GI with the leadership skills, networking and mentorship to achieve professional goals and growth.

Kelly Issokson, MS, RD, CSDH, LDN, CNSC is the Senior Registered Dietitian of Outpatient Nutrition at the University of California, San Francisco (UCSF) and a nationally recognized expert in gastrointestinal nutrition. With over 17 years of clinical experience, she specializes in inflammatory bowel disease (IBD) and surgical nutrition. Ms. Issokson graduated magna cum laude from Johnson & Wales University and earned her MS in Nutrition from California State University, Northridge. She serves on the National Board of the Crohn’s & Colitis Foundation and is a leading voice in advancing nutrition as part of multidisciplinary IBD care. She co-developed the Cedars-Sinai IBD Prehabilitation Program and nutrition education training programs for physicians, APPs, and RDs.

Gil Y. Melmed, MD, MS, is the Clinical Director of the Inflammatory Bowel Disease Program and Associate Director of the Karsh Division of Digestive and Liver Diseases at Cedars-Sinai Medical Center in Los Angeles, California. He earned his medical degree from Albert Einstein College of Medicine in the Bronx, New York, and master of science in clinical research from UCLA School of Medicine, Los Angeles. Dr Melmed completed his gastroenterology fellowship at the University of California, Los Angeles.
He has authored or coauthored more than 250 articles in peer-reviewed journals and several book chapters. Dr Melmed has served as Associate Editor of the American Journal of Gastroenterology, an ad hoc reviewer for several journals, and clinical research editor for Inflammatory Bowel Disease. His research interests include clinical outcomes and quality of care in IBD. He has given invited lectures and presentations nationally and internationally on several clinical topics in inflammatory bowel disease, including quality of care and clinical outcomes. He is a committee member of several professional organizations, including the American College of Gastroenterology and the Crohn’s and Colitis Foundation, where he serves as co-chair of the IBD Quality of Care committee. He has led or participated in the development of quality measures for IBD with the American Gastroenterology Association, the Crohn’s and Colitis Foundation, and the Canadian Crohn’s and Colitis organizations.

Neilanjan Nandi, MD, FACG, AGAF, FCCF, FACP is an Associate Professor of Clinical Medicine at the Perelman School of Medicine, University of Pennsylvania and is the Co-Section Head and Direcotr of Clinical Operations of the University of Pennsylvania Inflammatory Bowel Disease Program. Dr. Nandi specializes in the complex management of Crohn's disease, Ulcerative Colitis and recurrent C. difficile infection (C difficile). He has also authored numerous abstracts, publications and book chapters on the diagnosis and management of IBD, C difficile and various viral, parasitic, mycobacterial and bacterial infections of the GI tract. Aligning with his interests, Dr. Nandi has conducted several clinical trials focused on the clinical impact of stool derived microbiome therapies in C difficile and IBD. Dr. Nandi servies on the Philadelphia/Delaware Valley Crohn's & Colitis Foundation (CCF) Executive Council and on the Medical Advisory Board of the United Ostomy Associates of America (UOAA). He is a founding non-profit board member and Chair of the South Asian IBD Alliance (SAIA) which elevates culturally competent care in South Asian IBD. He has been recognized with the 2019 Philly Take STeps Physician Hero, the 2022 CCF's National Chairman’s Citation Award and the 2024 CCF's Gold Medallion Physician Award. He is the honored recipient of the 2023 Sidney Cohen GI Faculty Teaching Award and the 2024 Radhika Srinivasan GI Faculty award for Professionalism and Humanism at the Perelman School of Medicine.

Jessiy Salwen-Deremer, Ph.D., DBSM, is the Director of Behavioral Medicine for Digestive Health at Dartmouth-Hitchcock Medical Center and Assistant Professor of Psychiatry & Medicine at the Geisel School of Medicine at Dartmouth. Dr. Salwen-Deremer earned her Ph.D. in clinical psychology at Stony Brook University and completed her fellowship training in behavioral medicine at the Johns Hopkins School of Medicine. Her areas of clinical expertise include behavioral sleep medicine and gastropsychology. Her research expertise encompasses two areas: understanding the impact of sleep disorders on inflammatory bowel diseases and improving access to gastrointestinal behavioral health care. Across both of these areas, she focuses on the integration of telehealth and remote technologies to enhance patient engagement and participation.

Dr. Aline Charabaty is Professor of Medicine at the University of Maryland and the Director of the IBD Program at the University of Maryland Medical center. She is the Editor-in-Chief of the Crohn’s and Colitis 360 journal, and is past Vice-Chair of the AGA Research Foundation Executive Board, and past ACG Governor for Washington DC. Her work and advocacy were recognized by the Crohn’s and Colitis Foundation Excellence in Medicine Award in 2020 , the ACG Diversity Equity and Inclusion Award in 2025, and the AGA Beacon of Hope Award in 2026. Dr Charabaty uses social media to amplify medical education in IBD and is the founder of @MondayNightIBD a CME platform on twitter for which she received the Healio Disruptive Innovator Award in 2019. Dr Charabaty is a strong advocate for diversity and the professional advancement of women in GI. She is the Co-Founder of Scrubs & Heels, a foundation focused on empowering women in GI with the leadership skills, networking and mentorship to achieve professional goals and growth.

Kelly Issokson, MS, RD, CSDH, LDN, CNSC is the Senior Registered Dietitian of Outpatient Nutrition at the University of California, San Francisco (UCSF) and a nationally recognized expert in gastrointestinal nutrition. With over 17 years of clinical experience, she specializes in inflammatory bowel disease (IBD) and surgical nutrition. Ms. Issokson graduated magna cum laude from Johnson & Wales University and earned her MS in Nutrition from California State University, Northridge. She serves on the National Board of the Crohn’s & Colitis Foundation and is a leading voice in advancing nutrition as part of multidisciplinary IBD care. She co-developed the Cedars-Sinai IBD Prehabilitation Program and nutrition education training programs for physicians, APPs, and RDs.

Gil Y. Melmed, MD, MS, is the Clinical Director of the Inflammatory Bowel Disease Program and Associate Director of the Karsh Division of Digestive and Liver Diseases at Cedars-Sinai Medical Center in Los Angeles, California. He earned his medical degree from Albert Einstein College of Medicine in the Bronx, New York, and master of science in clinical research from UCLA School of Medicine, Los Angeles. Dr Melmed completed his gastroenterology fellowship at the University of California, Los Angeles.
He has authored or coauthored more than 250 articles in peer-reviewed journals and several book chapters. Dr Melmed has served as Associate Editor of the American Journal of Gastroenterology, an ad hoc reviewer for several journals, and clinical research editor for Inflammatory Bowel Disease. His research interests include clinical outcomes and quality of care in IBD. He has given invited lectures and presentations nationally and internationally on several clinical topics in inflammatory bowel disease, including quality of care and clinical outcomes. He is a committee member of several professional organizations, including the American College of Gastroenterology and the Crohn’s and Colitis Foundation, where he serves as co-chair of the IBD Quality of Care committee. He has led or participated in the development of quality measures for IBD with the American Gastroenterology Association, the Crohn’s and Colitis Foundation, and the Canadian Crohn’s and Colitis organizations.