Senior Members


Willem Bemelman
Amsterdam UMC / AMC
Minimal Invasive and Colorectal Surgery
Meibergdreef 9
1105 AZ Amsterdam
The Netherlands

Jonathan G. Braun

Cedars Sinai Medical Center IBIRI
California Los Angeles
United States of America


Jean-Frederic Colombel

Icahn School of Medicine at Mount Sinai 1470 Madison Avenue 10029 NY
New York U.S.A.

Short Biography

Jean-Frederic Colombel, MD, is the Director of the Susan and Leonard Feinstein Inflammatory Bowel Disease Clinical Center and the Leona M. and Harry B. Helmsley Charitable Trust Inflammatory Bowel Disease Research Center at the Icahn School of Medicine at Mount Sinai. Since 1984, his research has focused on IBD, and thanks to the development of multiple local, national, and international collaborations, he has been able to contribute to important advances in the pathophysiology of the disease. He is past president of the GETAID, European Crohn’s and Colitis Organization and past chair of International Organization for Inflammatory Bowel Disease (IOIBD).

Dr. Colombel was awarded the United European Gastroenterology Federation Research Prize in 2009, the Crohn’s and Colitis Foundation Clinical Research Award in 2014, the Sherman Prize in 2018 and the Jacobi Medallion in 2022. One tangible result of Dr. Colombel’s work has been the publication as primary author or co-author of more than 1,070 peer-reviewed papers with an H index of 185.


Anders Ekbom
Karolinska Institutet
Dpt of Medicine Solna
17176 Karolinska University Hospital Stockholm

Short Biography

Background as a gastrointestinal surgeon,
Professor in Epidemiology at Karolinska Institutet (KI), Stockholm.
Former head at the Department of Medicine at KI,
Former member in the Nobel Assembly.


Phillip Fleshner
Cedars Sinai Medical Center
Department of Surgery
CA 90048 CA Los Angeles

Short Biography

Program Director, Colorectal Surgery Residency, Cedars-Sinai Medical Center

Clinical Professor of Surgery UCLA School of Medicine

Phillip R. Fleshner, M.D., holds an academic appointment of Clinical Professor of Surgery from the UCLA School of Medicine. He holds the Shierley, Jesslyne, and Emmeline Widjaja Chair in Colorectal Surgery. He has been an integral part of the Cedars Sinai Medical Center teaching staff on a number of levels. First, in conjunction with the Department of Surgery, he has remained the Program Director of the ACGME accredited residency and has successfully trained board certified colorectal surgeons.

Dr. Fleshner has been engaged in the study of colorectal surgery and for over 25 years and has been treating patients with colorectal disease surgically for the same period of time. He has presented at multiple invited lectures and served on multiple panels at various fora on surgical topics. He has also been invited to present state of the art lectures and serve on panels at meetings of two national, non-surgical entities, the American Gastroenterological Association and the Crohn’s and Colitis Foundation of America.

Dr. Fleshner has published over 100 peer reviewed papers on a variety of colorectal surgical issues. A primary focus of his research has been multidisciplinary examinations of clinical and subclinical factors affecting the perioperative care of the surgical patient. Also related to inflammatory bowel diseases, he has focused on research aimed at stratification of Crohn’s disease and ulcerative colitis phenotypic subgroups, relating these to surgical outcomes and using the results to shape pre-and post-operative protocols. Another area of key interest is optimizing the surgical outcomes of Crohn’s disease and ulcerative colitis. Finally, he has been interested in examining the effects of perioperative immune suppression on the outcomes of IBD 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.


Miguel-Angel Gassull
Calle Madrazo 24
Atic-2 08006 Barcelona

Anne Griffiths
SickKids Hospital
University of Toronto
M5G1X8 555 University Avenue

Subrata Ghosh
University College Cork
Professor and Chair of Medicine
College of Health and Medicine and
Alimentary Pharmabiotic Centre, Microbiome
Cork, Ireland

Short Biography

Subrata Ghosh is the Chair and Head of Medicine, College of Medicine and Health at University College Cork since March 2021. He is a principal investigator and deputy director at APC Microbiome Ireland. Subrata has recently been awarded the SFI Research professorship.

Subrata did his doctoral research on the immunology of inflammatory bowel disease (IBD) at University of Edinburgh where he was appointed as faculty.

His predominant research interests are precision medicine in IBD, innovative clinical trials, immune cell plasticity, targeted immunotherapies in IBD, interaction of nutrients, microbes and immune system, innate immunity and epidemiology and health care in IBD. His research has been published in New England Journal of Medicine, Lancet, Nature Medicine, Gastroenterology, Gut, American Journal of Pathology and American Journal of Clinical Nutrition.  He has delivered over 700 international invited lectures including over 50 named keynote lectures.

Previously he was the inaugural director of the Institute of Translational Medicine, and Professor of Translational Medicine, University of Birmingham between 2016 and 2020. Between 2009 and 2016 he was the Professor and Chairman of Medicine, University of Calgary, and Head of Medicine, Alberta Health Services, Canada. Between 2002 and 2008 he was the Professor and Chair of Gastroenterology at Imperial College London, Hammersmith Hospital.  

Subrata Ghosh is a Fellow of the Academy of Medical Sciences UK, and the Canadian Academy of Health Sciences, both highest honours in health sciences in UK and Canada.  He is currently the second member from Ireland on the prestigious International Organisation for Study of IBD (IOIBD). He has served on numerous committees, councils, and grant panels regionally, nationally and internationally, and has been chief editor, associate editor and editorial board member of a number of international reputable journals.


Stephen Hanauer
Northwestern University
Feinberg School of Medicine, Digestive Disease Center
60611 Suite 1400 IL Chicago U.S.A.

Toshifumi Hibi
Kitasato Institute Hospital
Center for Advanced IBD Research and Treatment
108-8642 Minato-ku
Tokyo Japan

Noam Harpaz
Icahn School of Medicine at Mount Sinai
Dpt. Pathology & Medicine
NY 10029 1468 Madison Avenue N Y
New York U.S.A


Michael Kamm
University of Melbourne
St. Vincent's Hospital
3065 Fitzroy Melbourne

Wolfgang Kruis
Ev. Krankenhaus Kalk
Dpt. Internal Medicine
51103 Buchforststrasse 2 Koln

Short Biography

Emeritus Director, Clinic of internal Medicine and Gastroenterology, Protestant Hospital Kalk, Teaching Hospital of the University of Cologne.

Past president of the German Society of Gastroenterology, Digestive and Metabolic Diseases (DGVS)

Past president of the German Association of Crohn´s disease and ulcerative colitis

Pathogenesis, Diagnosis, Clinical Trials (Principal investigator on several international studies)


Jean-Yves Mary
INSERM Hopital Saint-Louis
Dpt. U1153
75010 1 Av. Claude Vellefaux
Paris France

Gerasimos Mantzaris
Evangilismos Hospital
Department of Gastroenterology
GR-10676 Athens Greece

Short Biography

Dr Mantzaris has authored and/or co-authored more than 350 manuscripts in peer review national and international medical Journals and medical books, including Guidelines for the diagnosis and treatment of IBD, Dyspepsia and H. pylori infection, Colorectal cancer, Sedation in GI Endoscopy,  and the ECCO-EFCCA Patient Guidelines.

He has run as PI a plethora of international and national industry-initiated and researcher-initiated clinical trials.

He was elected President of the Hellenic Gastroenterological Association, the Hellenic IBD Club, and the Hellenic Club for the study of H. pylori infection.

He has served as member and chairman of the ECCO educational Committee and member of the ECCO Governing Board as Educational Officer, member of the United European Gastroenterology (UEG) and the UEG General Assembly, the Nomination Committee, and the Publication Committee of IOIBD, the governing board of the Medical Society of Athens, and Member of the Governing Board of the Hellenic Institute for Pharmaceutical Research and Technology. 

For 14 years he was a member of the Examination Committee for the Specialty of Gastroenterology in Greece. He is honorary member of the Hellenic GI Association, the Hellenic IBD Club and the Romanian IBD Club.  In addition, he is Fellow of the AGA, International Member of the ACG, member of the IOIBD, the International Coeliac Society, and (in the past) of the BSG, the Hellenic Immunological Association and the Hellenic Association for the Study of Liver Diseases.

He is serving or has served as member of Editorial Boards of the Journals JCC, APT, IBD, GRP, WJG, and Annals of Gastroenterology, and as reviewer in many national and International medical journals. he has organized numerous educational activities, including National and International GI and IBD Congresses, Symposia, Postgraduate Courses, Tutorials, and Webinars. He has served as consultant in numerous national and international advisory boards for the industry.

Pia Munkholm
North Zealand University Hospital
Dpt. Gastroenterology & Hepatology
Dk-3600 Fredrikssund, Copenhagen Denmark

Short Biography

Head & professor of Danish IBD Centre for eHealth & Epidemiology (DEEP), North Zealand University, Copenhagen, Denmark.

  • Affiliated with faculty of Medicine, Copenhagen University, Denmark.
  • Board member in past, Danish Society og gastroenterolog & Hepatology (DSGH).
  • Honourable member & past head of Epidemiology committee of ECCO.
  • Pattern recognition of IBD disease course types in epidemiology og EHealth.(phd DMSci).
  • Establish the comprehensive e-health clinic and home monitoring of IBD disease courses via APP development of

Bjorn Moum
Oslo University Hospital Ulleval
Dpt. Gastroenterology
1519 Moss Norway


Colm O'Morain
Beacon Hospital
Dpt. Gastroenterology
D18E7P4 Beacon Consultants Clinic Dublin Ireland

Short Biography

Professor Colm O’Morain graduated from University College Dublin and received his post-graduate training in Dublin, Nice, London and New York.

  • He is immediate past President of the BioMedical Alliance for Health Research in Europe representing 28 major European Scientific societies of which serve the interest of 300,000 medical scientists.
  • He is the past President of United European Gastroenterology from 2011 to 2013.
  • He is the past President of the Bockus International Society of Gastroenterology.
  • He was the foundation Professor of Medicine at Tallaght Hospital, Trinity College Dublin. He was
    elected Dean of the Faculty of Health Sciences at Trinity College from 2007 – 2012.
  • He has held many positions of authority in National, European and World Organisations most
    notably President of the Irish Society of Gastroenterology between 2000 – 2004, President of the
    European National Societies of Gastroenterology 1997 – 2000.
  • He has published over 300 peer reviewed articles and authored eight books.
  • He was the President of the European Helicobacter Study of which he is a founder member.
  • He was the Irish representative on the European Crohn’s and Colitis Organisation.
  • He is a patron of the European Federation of Crohn’s Colitis Association.
  • He is a founder member of the European Board of Gastroenterology.
  • He is a co-author of the European Guidelines for Colorectal Cancer Screening and an advisor to the National Cancer Screening Service in Ireland.
  • He was awarded a D.Sc from the University of London for his published work and a D.Sc from the University of Athens for his contribution to Gastroenterology.
  • He is a fellow of The Royal College of Physicians in Ireland, the London College of Physicians and of Trinity College Dublin.
  • He is an elected member of the Royal Irish Academy of Ireland.
  • He has been awarded the Max Suirala Medal by the Finnish Society of Gastroenterology and was made an honorary member of the Belgian Society of Gastroenterology and of the Hungarian Society
    of Gastroenterology and an Orator of the Malaysian Society of Gastroenterology. He was awarded the Felix Burda prize for his efforts to promote colorectal cancer in Europe.
  • His research interests are in Helicobacter pylori, Inflammatory Bowel Disease and Colorectal Cancer Screening.

Tom Oresland
Akershus University Hospital,
Dept. of GI Surgery
1478 Sykeusveien Lorenskog Norway

Short Biography

Trained at Karolinska Institutet, Stockholm. Basic surgical training in Karlskrona, Sweden
PhD and colorectal training in Gothenburg. Main research interest in IBD, pouch surgery, pelvic floor problems and diverticular disease.
Has been Secretary for the Swedish organisation for the study of IBD, chairman Swedish Gastroenterological Society and Swedish delegate in the European Crohn and Colitis organisation (ECCO), Elected member of IOIBD (Int Org for the study of IBD). From 2007 to 2019 full Professor in GI surgery at the University of Oslo. Founding member of the Norwegian Society for Colorectal Surgery. Presently as emeritus holding a part time position as research ombud at the Institute of Clinical medicine and the university hospitals in Oslo.


Julian Panes
Hospital Clinic Barcelona
Head Inflammatory Disease
8036 Barcelona

Short Biography

Dr. Julian Panes is senior investigator at Institut Investigacions Biomèdiques August Pi i Sunyer, and formerly the head of the IBD Unit at Hospital Clínic de Barcelona for 1996 – 2022.

His research group is focused on the development of new diagnostic tools particularly imaging modalities, the identification of new molecular targets for treatment of inflammatory bowel diseases, and the development of cell therapies.
He has published more than 400 manuscripts in international peer-reviewed journals, has served as a member of the Scientific Committee of the United European Gastroenterology Federation, the Scientific Committee of European Crohn’s and Colitis organization, has been member of the board of International Organization for the study of Inflammatory Bowel Disease (IOIBD), Associate Editor of Gut, and President of ECCO.

John Pemberton
Mayo Clinic
200 First Street SW
55905 MN Rochester U.S.A.


Daniel Rachmilewitz
6468421 Tel Aviv

Robert Riddell
Department of Pathology
600 University Avenue
M5G 1X5 Toronto Canada

Jon Rhodes
University of Liverpool
Institute of Systems, Molecular and Integrative Biology
Liverpool L69 3GE, UK
United Kingdom

Short Biography

Emeritus Professor of Medicine, University of Liverpool, UK

Past President British Society of Gastroenterology

Elected fellow UK Academy of Medical Sciences

Epithelial glycobiology, mucins, microbiota, nutrition


David Sachar
Icahn School of Medicin at Mount Sinai
12 Egan Place
07632 2010 NJ Englewood Cliffs U.S.A.

Jürgen Schölmerich
Germanenstrasse 8B
D-65719 Hofheim am Taunus

Short Biography

Dr. Schölmerich was born in Marburg, Germany and educated at the University of Heidelberg ("Physikum" 1971) and the University of Freiburg (MD, 1973). He obtained lecturer in medicine (PhD) at the University of Freiburg (1984), the certification for internal medicine (1985), the certification for gastroenterology (1988) and for "Special intensive care medicine" for internal medicine (1993). He was research fellow (1982, 1985) and visiting professor (1995) at the University of California, San Diego.

From 1991 until 2010 he was Director of the Department for Internal Medicine I (Gastroenterology/Hepatology, Hematology/Oncology, Endocrinology/ Metabolic diseases, Infectious diseases, Rheumatology/Immunology, Intensive Care Medicine) at the University of Regensburg (since 1991). He served as Deputy Medical Director (1992 – 1994) and Medical Director (1996 – 1999) at the University Medical Center of Regensburg. From 2010 -- 2016 he was Medical Director and CEO of the Hospital of Johann Wolfgang Goethe University Frankfurt.

He was elected to the Executive Committee of the International Organization for the Study of Inflammatory Bowel Disease (IOIBD, 1998 – 2001). He served as Deputy Chairman (2001 – 2004) and Chairman of the IOIBD (2004-2007). In 2004 he was elected to the Senate of the Deutsche Forschung Gemeinschaft (DFG) and was Vice president of the DFG from 2005 until 2011.

His research areas are inflammatory bowel disease, the innate immune system and bacterial-epithelial interactions in the intestine, liver cirrhosis and complications, and bile acid metabolism.

Ajit Sood
Professor & Head,
Department of Gastroenterology,
Dayanand Medical College & Hospital,
Ludhiana - 141001 Punjab


Flavio Steinwurz
Hospital Israelita Albert Einstein
Department of Gastroenterology
01416.001 Sao Paulo

Short Biography
Dr. Flavio Steinwurz, M.D., MACG, received his medical degree in 1980 and completed the residency in 1984 at São Paulo Federal University, São Paulo, Brazil. In 1987 he trained in Gastroenterology, with focus on in Inflammatory Bowel Diseases, at Lenox Hill Hospital, NY, on the service of Dr. Burton I. Korelitz.

In 1988 he returned to Brazil and became an Assistant Professor at Santos School of Medicine and was Board Certified in Gastroenterology by the Brazilian Medical Association (AMB) and the Brazilian Federation of Gastroenterology (FBG).

In 1994 he became a Fellow of the American College of Gastroenterology (ACG) and in 1996 he received, with honour, his Master degree in Gastroenterology by the Brazilian Institute for the Study and Research in Gastroenterology.

He’s emeritus president of the Brazilian Association for Crohn’s and Colitis after 16 years as president.
From 2004 to 2010 he was a Governor for the American College of Gastroenterology (ACG) for Brazil and from 2007 to 2010 the Director of Research of the Albert Einstein Jewish Hospital, São Paulo, Brazil.
In 2010 he became a member of the International Organization for the study of Inflammatory Bowel Disease (IOIBD).
He’s also a member of the advisory board and/or reviewer for many scientific journals like the American Journal of Gastroenterology, Digestive Disease and Sciences, Journal of Crohn’s and Colitis, and Clinics.
In 2010, Dr. Steinwurz received the Geraldo Siffert Award for the Best Abstract presented at the Brazilian Week of Gastroenterology.
In 2012 was honoured with the International Leadership Award from the American College of Gastroenterology in Las Vegas-USA. In 2014 was granted with the William D. Carey Award from the American College of Gastroenterology in Philadelphia –USA.
In 2016 was elected secretary general of the Sao Paulo society of Gastroenterology and Nutrition, and Chair of the international relations committee of the Brazilian Federation of Gastroenterology.
He was the recipient of the 2016 Master award from the American College of Gastroenterology and again, elected Governor of the ACG for Brazil.
President of the PANCCO - Pan-American Crohn’s and Colitis Organization, from 2019 to 2022.
He is a board member and reviewer for many high impact publications in the field of IBD.

Nowadays Dr. Steinwurz is taking care of over 3000 patients with IBD in Instituto Steinwurz de Saude do Intestino and Hospital Israelita Albert Einstein in Sao Paulo, and involved in many research projects, including epidemiology, therapeutic, clinical trials, and biomarkers.

Balfour Sartor
University of North Carolina at Chapel Hill
Dpt. Gastroenterology and Hepatology
27599 111 Mason Farm Road NC Chapel Hill U.S.A.

Johan Soderholm
Linkoping University Hospital
Dept of Surgery
SE-58731 Linkoping

Eduard Stange
University Tubingen
Dpt. Internal Medicine I
72076 TUBINGEN Germany

Short Biography

Eduard F. Stange was Professor of Medicine and Chief, Division of Gastroenterology, Department of

Internal Medicine at the University of Lübeck 1992-2000. He became Chief, Department of Internal Medicne I (Gastroenterology, Hepatology and Endocrinology), at the Robert-Bosch-Krankenhaus (RBK), Stuttgart in 2000-2016. Thereafter he was Senior Professor at the Medical Clinic I, University of Tübingen (2016-2020) and currently is Consultant for the Medical Clinic I, University of Tübingen (since 2020).

He was President of the German Society of Coloproctology and Vice President of the German Society of Mucosal Immunology and Microbiome. Also, he is a former secretary of the International Organisation for Inflammatory Bowel Diseases (IOIBD) and past member of Faculty of 1000.

He organized the first German (DGVS) and European (ECCO) guidelines in IBD. He has a special interest in the pathogenesis and therapy of inflammatory bowel diseases and works on the identification of novel targets for treatment. He was member of several pharmaceutical industry advisory boards and has published over 350 peer reviewed articles (PubMed) including original papers and reviews as well as several books on IBD and the microbiome.


Stephan Targan
Cedars-Sinai Medical Center, Division of Gastroenterology
110 George Burns Road
90048 CA Los Angeles U.S.A.

Curt Tysk
Orebro University Hospital
Department of Gastroenterology
SE-701 85 Orebro Sweden

Simon Travis
Oxford University Hospital
John Raqdcliffe Hospital
OX3 9DU Headley Way Oxford
United Kingdom

Short Biography

Simon Travis is Professor of Clinical Gastroenterology at the University of Oxford, Senior Clinical Research Fellow at the Kennedy Institute and Honorary Consultant Gastroenterologist at Oxford University Hospitals NHS Foundation Trust. He is a former President of the European Crohn’s & Colitis Organisation (ECCO).

His research interests involve the integration of science and clinical practice, inflammation across tissues, endoscopic assessment of disease activity, predictive indices, and novel therapy in inflammatory bowel disease.

He has received many international awards, including the Joanna and David B Sachar International Award, New York, the Inaugural Distinguished Visiting Professor of IBD, Sydney, Lifetime Achievement Award of the Colitis & Crohn’s Foundation, India and Crystal Award for Distinguished Educator, Asian Institute of Gastroenterology.

He has written 7 books, over 30 chapters, 25 peer-reviewed international guidelines and more than 400 original papers.


Morten H Vatn
University of Oslo
Institute of Clinical Medicine
0874 Oslo Norway

Short Biography
Morten H. Vatn started as a fellow of gastroenterology in 1975, upon dissertation at Ullevål university hospital, on the thesis: “Mechanisms of the gastric intrinsic factor secretion”.

Since 1979, he has been working at Rikshospitalet university hospital, and after 1980 as a specialist in gastroenterology and internal medicine, and from 1988 as a consultant at the department of gastroenterology and hepatology until clinical retirement in 2012, whereafter he has been a professor emeritus at the Institute of Clinical Medicine, the university of Oslo (UiO).

Major areas of research have been gastrointestinal pathophysiology, intestinal neoplasia, including endocrine tumors and especially colorectal polyps, clinical nutrition, and gastrointestinal inflammation.
He was appointed professor of gastroenterology first time in 1985, and later of clinical nutrition, and full professor of clinical epidemiology, advising many PhD candidates, master students and student fellows.
His international collaboration includes several EU-projects, editorial work, opponent at dissertations, international prizes, invited member of the New York academy of Science, Fellow of the American gastroenterological association, honorary member of the Norwegian Gastroenterology association, appointed visiting professor at the university of Lanzhou, China, and in 1989, founder of the IBSEN study group.

Since 1995, member of the International Organisation for the study of Inflammatory Bowel Diseases (IOIBD).

The publication list counts close to 500 articles in addition to many conference presentations. Morten Vatn still has advisory tasks in his major fields, partly on behalf of the university.


Mamoru Watanabe
Tokyo Medical and Dental University
Advanced Research Institute
113-8519 Tokyo


IOIBD Scientific Secretariat

Marischka Konings

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