Gregory Stephen Sayuk MD

Assistant Professor, Internal Medicine, Washington University School of Medicine

915 N Grand BlvdSt. Louis, MO 63106
Phone+1 314-289-6434
Fax+1 314-289-7041

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Education & Training

Washington University/B-JH/SLCH ConsortiumFellowship, Gastroenterology, 2003 - 2006
Washington University/B-JH/SLCH ConsortiumResidency, Internal Medicine, 2000 - 2003
McGovern Medical School at UTHealthClass of 2000

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Certifications & Licensure

MO State Medical License 2001 - 2027
IL State Medical License 2025 - 2026
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification Allscripts TouchWorks EHR, Allscripts, 2016-2017
CMS Meaningful Use Stage 1 Certification Allscripts TouchWorks EHR (Complete), Allscripts, 2016-2017

Clinical Trials

Irritable Bowel Syndrome (IBS) Functional Magnetic Resonance Imaging (fMRI) With Desipramine
TERMINATED
NA

Publications & Presentations

PubMed

Assessing Treatment Response in Patients With IBS-C in Clinical Practice: Consensus Expert Recommendations Using a Modified Delphi Process.
Gregory S Sayuk, Dina Filipenko, Klaudia Kornalska, Paul Swinburn, Lin Chang
Clinical and Translational Gastroenterology. 2026-08-19
Design of Treatment Trials for Disorders of Gut-Brain Interaction.
Gregory S Sayuk, Darren M Brenner, Florencia Carbone, Simon R Knowles, Brian E Lacy
Gastroenterology. 2026-05-01
988 Lifeline: A Lifesaver for Gastrointestinal Patients Facing Mental Health Challenges.
Michelle Baliss, Gregory S Sayuk, Jill E Elwing
The American Journal of Gastroenterology. 2025-08-01

Journal Articles

Dallas Steatosis Index Identifies Patients with NAFLD
Scott Mchenry, Jeffrey D Browning, Gregory Sayuk, Nicholas O Davidson, Clinical Gastroenterology and Hepatology
Use of a Transparent Cap Increases the Diagnostic Yield in Antegrade Single-Balloon Enteroscopy for Obscure GI Bleed
Gregory Sayuk, Daniel Mullady, Dayna Early, Vladimir Kushnir, Digestive Diseases and Sciences

Authored Content

Dallas Steatosis Index Identifies Patients with NAFLDJanuary 2020

Press Mentions

GI Advocacy Group Kicks off #YouandIBS Campaign for IBS Awareness MonthApril 1st, 2023
Constipation Awareness Month: Potential Breakout Therapies to Watch in 2023December 24th, 2022
IBS Awareness Month: Diagnostic Tips, Treatment Options, Multidisciplinary Care and MoreApril 16th, 2022

Grant Support

Influence Of Somatization On Central Pain Responses In Irritable Bowel SyndromeNational Institute Of Diabetes And Digestive And Kidney Diseases2010–2012

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