Faculty

Jana Al Hashash

MD, MSc
Assistant Professor of Medicine
AUB

Gastroenterologist with an interest in inflammatory bowel diseases.

2026 Sessions

Understanding the Mimics of IBD

Invited Co-Team Leader

Panelist

Tuesday, December 08 6:00–6:40 PM
Faculty

Jessica Allegretti

MD,MPH, FACG, AGAF
Director, Crohn's and Colitis Center; Associate Professor of Medicine, 2020 Sherman Prize Emerging Leader Recipient
Brigham and Women's Hospital, Harvard Medical School

Dr. Jessica Allegretti currently serves as the Medical Director of the Crohn’s and Colitis Center at the Brigham and Women’s Hospital. In 2020, she received the Sherman Emerging Leader Prize for Excellence in Crohn’s and Colitis. In addition, she developed and leads the hospital’s Fecal Microbiota Transplantation Program and has grown to become and international expert on the topic. Dr. Allegretti cares for patients with inflammatory bowel disease as well as Clostridioides difficile (c.diff) infection. Her research focuses on the intestinal microbiome and the consequences of its derangement, with the goal of understanding the role dysbiosis plays in microbial associated diseases. In addition, her lab focuses on novel therapeutic agents for IBD and she is leading multiple sponsored and investigator initiated drug trials. For more information visit www.allegrettilab.com

Faculty

Hans Herfarth

MD, PhD
Professor of Medicine
University of North Carolina at Chapel Hill

Hans Herfarth is Director of the Multidisciplinary IBD Center at the University of North Carolina. His primary research interests focus on the development and evaluation of novel diagnostic and therapeutic approaches for patients with inflammatory bowel diseases (IBD). His work is particularly centered on the conceptualization and conduct of investigator-initiated clinical studies in IBD, supported by funding from the NIH, the Crohn’s & Colitis Foundation, and private and industry-associated foundations. Dr. Herfarth has authored more than 350 journal articles, book chapters, and review articles related to IBD.

Faculty

Maria Abreu

MD
Executive Director, F. Widjaja Inflammatory Bowel Disease Institite
Cedars-Sinai Medical Center

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.

Faculty

David Hudesman

MD, FACG, AGAF
Director, Inflammatory Bowel Disease Center
NYU Langone Health

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.

Understanding the Mimics of IBD

Invited Co-Team Leader

Panelist

Tuesday, December 08 6:50–7:30 PM
Faculty

Jessica Allegretti

MD,MPH, FACG, AGAF
Director, Crohn's and Colitis Center; Associate Professor of Medicine, 2020 Sherman Prize Emerging Leader Recipient
Brigham and Women's Hospital, Harvard Medical School

Dr. Jessica Allegretti currently serves as the Medical Director of the Crohn’s and Colitis Center at the Brigham and Women’s Hospital. In 2020, she received the Sherman Emerging Leader Prize for Excellence in Crohn’s and Colitis. In addition, she developed and leads the hospital’s Fecal Microbiota Transplantation Program and has grown to become and international expert on the topic. Dr. Allegretti cares for patients with inflammatory bowel disease as well as Clostridioides difficile (c.diff) infection. Her research focuses on the intestinal microbiome and the consequences of its derangement, with the goal of understanding the role dysbiosis plays in microbial associated diseases. In addition, her lab focuses on novel therapeutic agents for IBD and she is leading multiple sponsored and investigator initiated drug trials. For more information visit www.allegrettilab.com

Faculty

Hans Herfarth

MD, PhD
Professor of Medicine
University of North Carolina at Chapel Hill

Hans Herfarth is Director of the Multidisciplinary IBD Center at the University of North Carolina. His primary research interests focus on the development and evaluation of novel diagnostic and therapeutic approaches for patients with inflammatory bowel diseases (IBD). His work is particularly centered on the conceptualization and conduct of investigator-initiated clinical studies in IBD, supported by funding from the NIH, the Crohn’s & Colitis Foundation, and private and industry-associated foundations. Dr. Herfarth has authored more than 350 journal articles, book chapters, and review articles related to IBD.

Faculty

Maria Abreu

MD
Executive Director, F. Widjaja Inflammatory Bowel Disease Institite
Cedars-Sinai Medical Center

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.

Faculty

David Hudesman

MD, FACG, AGAF
Director, Inflammatory Bowel Disease Center
NYU Langone Health

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.

Case Discussion: Perianal Problems

Invited Co-Team Leader

Panelist

Wednesday, December 09 10:45–11:10 AM
Faculty

Paulo Kotze

MD, MSc, PhD
Professor of Health Sciences
Catholic University of Paraná - PUCPR

Paulo Gustavo Kotze is Adjunct Senior Professor of Surgery at the Catholic University in Curitiba, Paraná, Brazil. He rcompleted his General Surgery training at the Evangelical University Hospital in Curitiba (2000). He also completed his senior Fellowship in Colorectal Surgery at the Clinics Hospital from the Federal University of Parana (2002). Dr. Kotze achieved his Masters' Degree on Surgery at the Catholic University in 2008 and joined the faculty of medicine at the same university in 2011. He achieved his PhD degree studying the influence of biological therapy on surgical outcomes in Crohn´s disease, in the University of Campinas, in São Paulo, Brazil (UNICAMP) in 2015. Dr. Kotze was also an IBD advanced visiting fellow in the IBD unit at the University of Calgary (Cumming school of medicine), Canada, for the period of 2017-2018. Dr. Kotze is an experienced IBD surgeon and author of 3 books, 250+ pubmed peer-reviewed articles and multiple book chapters focused on Crohn´s disease and ulcerative colitis. He has special interest in the fields of biological therapy, epidemiology and surgery in IBD. Dr. Kotze was formely a committee member of S-ECCO (surgeons of ECCO) from 2015-2018 and a member of the ECCO EduCOM (educational committee), 2018-2021. He is an active member from the International Organization of Inflammatory Bowel Diseases (IOIBD). Currently, he is Professor of the Health Sciences Postgraduate Program at the Catholic University of Paraná, in Curitiba, Brazil. Dr Kotze is also a senior researcher for the National Brazilian Council of Research (CNPq).

Faculty

Aline Charabaty

MD
Professor of Medicine
University of Maryland School of Medicine

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.

Faculty

Katherine Falloon

MD
Assistant Professor
Cleveland Clinic

Katherine Falloon, MD, is a staff gastroenterologist at the Digestive Disease and Surgery Institute at the Cleveland Clinic and an assistant professor of medicine at the Cleveland Clinic Lerner College of Medicine. She is also the co-director of the intestinal ultrasound program at the Cleveland Clinic. Her clinical focus is in caring for patients in inflammatory bowel disease and her research interest is in extra-intestinal manifestations of inflammatory bowel disease. She is currently leading the Cohort for Healing Skin, Eye, and Extra-Intestinal Manifestations (CHASE-EIM), a multi-disciplinary research consortia related to extra-intestinal manifestations of inflammatory bowel disease. She has received funding from the Crohn's and Colitis Foundation, Pfizer, and the Digestive Disease and Surgery Institute's Chief Innovation and Research Award.

Faculty

Phillip Fleshner

MD, FASCRS
Director, Colorectal Surgery Research
Cedars Sinai Medical Center

Phillip R. Fleshner, MD is the Director of Colorectal Surgery Research at Cedars-Sinai Medical Center. He holds the Shierley, Jesslyne, and Emmeline Widjaja Chair in Colorectal Surgery.

Dr. Fleshner's main clinical and research interests are directed towards optimizing outcomes and techniques in the surgical management of Crohn's disease and ulcerative colitis.

Dr. Fleshner has written numerous articles for peer-reviewed publications, including the Annals of Surgery, Journal of the American College of Surgeons, Diseases of the Colon and Rectum, Gut and the American Journal of Surgery.

Dr. Fleshner received his bachelor's degree from McGill University and his medical degree from the Albert Einstein College of Medicine. He completed his General Surgery Residency at the Mount Sinai Medical Center in New York and his Colorectal Surgery Fellowship at the Lahey Clinic in Boston.

He received the Sherman Prize in 2021.

Faculty

Hans Herfarth

MD, PhD
Professor of Medicine
University of North Carolina at Chapel Hill

Hans Herfarth is Director of the Multidisciplinary IBD Center at the University of North Carolina. His primary research interests focus on the development and evaluation of novel diagnostic and therapeutic approaches for patients with inflammatory bowel diseases (IBD). His work is particularly centered on the conceptualization and conduct of investigator-initiated clinical studies in IBD, supported by funding from the NIH, the Crohn’s & Colitis Foundation, and private and industry-associated foundations. Dr. Herfarth has authored more than 350 journal articles, book chapters, and review articles related to IBD.

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