Douglas K Rex MD

Gastroenterology•Indianapolis, IN

Distinguished Professor of Medicine Emeritus, Indiana University School of Medicine,

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550 University Blvd# UH4100Indianapolis, IN 46202
Phone+1 317-278-8741

Education & Training

Indiana University School of MedicineResidency, Internal Medicine, 1984 - 1985
Indiana University School of MedicineFellowship, Gastroenterology, 1982 - 1984
Indiana University School of MedicineResidency, Internal Medicine, 1980 - 1982
Indiana University School of MedicineClass of 1980

Certifications & Licensure

IN State Medical License 1980 - 2025
FL State Medical License 2020 - 2022
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

America's Top Doctors Castle Connolly, 2002-2014
America's Top Doctors for Cancer Castle Connolly, 2009-2013
Indianapolis Monthly Castle Connolly, 2007, 2009-2011, 2013
Fellow (AGAF) American Gastroenterological Association, 2010
Top MD Consumers Checkbook
Whos Who in Medicine and Healthcare Marquis Whos Who
Fellow (FACG) American College of Gastroenterology
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Clinical Trials

Evaluation of the PillCam™ Colon Capsule Endoscopy (PCCE) in the Visualization of the Colon Start of enrollment: 2006 Jun 01
Terminated
Cap-fitted Colonoscopy: a Randomized, Tandem Colonoscopy Study of Adenoma Miss Rates Start of enrollment: 2006 Nov 01
Completed
Not Applicable
Does Inspection During Insertion Improve Adenoma Yields During Colonoscopy? Start of enrollment: 2009 Dec 01
Completed
Not Applicable
Performance Study of the Invendo C20 Colonoscope System in Colorectal Cancer Screening Start of enrollment: 2009 Nov 01
Completed
Narrow-Band Imaging Versus Standard White Light for the Detection of Serrated Lesions in the Proximal Colon Start of enrollment: 2011 Apr 01
Completed
Not Applicable
Novel Biophotonics Methodology for Colon Cancer Screening Start of enrollment: 2008 Feb 01
Completed
A Phase III Study of the Efficacy and Safety of Remimazolam Compared to Placebo and Midazolam in Colonoscopy Patients Start of enrollment: 2015 Mar 30
Completed
Phase 3
Standard Colonoscopy Versus Colonoscopy With Endocuff Vision Start of enrollment: 2017 Dec 11
Completed
Not Applicable
Post-resection Treatment of Large Colon Polyps Start of enrollment: 2018 Oct 16
Completed
Not Applicable
A Prospective Randomized Study Comparing the Adenoma Detection Yield of SC, AI and Combined AI and G-EYE® Start of enrollment: 2022 May 01
Not yet recruiting
Not Applicable
Roles: Contact, Principal Investigator
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Publications & Presentations

PubMed

1 citations
Mass-forming isolated ischemic necrosis of the cecum mimicking malignancy: Clinicopathologic features of 11 cases.
Xiaoyan Liao, Douglas K Rex, Dongwei Zhang
Annals of Diagnostic Pathology. 2025-04-01
American Society for Gastrointestinal Endoscopy Colorectal Cancer Screening Project National Summit.
Pegah Hosseini-Carroll, Jason A Dominitz, Brian C Jacobson, Folasade P May, Rachel B Issaka
Gastrointestinal Endoscopy. 2025-03-01
Cold Snare Resection in the Colorectum: When to Choose it, When to Avoid it, and How to Do it.
John J Guardiola, Joseph C Anderson, Tonya Kaltenbach, Heiko Pohl, Douglas K Rex
Clinical Gastroenterology and Hepatology. 2025-03-01

Lectures

Optimal Colonoscopy Technique and Polypectomy
AGC 2018 Annual Scientific Meeting, Philadelphia, PA - 10/7/2018
Colorectal Cancer Prevention
AGC 2018 Annual Scientific Meeting, Philadelphia, PA - 10/7/2018
Divergent Long-Term Detection Rates of Proximal and Distal Advanced Neoplasia in Fecal Immunochemical Test Screening Programs: A Retrospective Cohort Study
Digestive Disease Week, Orlando, Florida - 5/18/2013

Press Mentions

Stay up to Date: Healio Recaps Pivotal Guidelines for GI, Liver Disease in 2024 (So Far)September 17th, 2024
Five Key Measures to Ensure a Quality ColonoscopySeptember 10th, 2024
ACG/ASGE Updates ADR Recs, Adds 2 Metrics as Priority Quality Indicators for ColonoscopyAugust 27th, 2024
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Grant Support

Benzoate And Phenylacetate In The Treatment Of Adult Hepatic EncephalopathyNational Center For Research Resources1985

Professional Memberships