Faculty Profile

Christopher Chapman
Section of Gastroenterology
Assistant Professor of Medicine
Referring Physician Access Line: 1-877-DOM-2730

Academic Interests

Dr. Chapman specializes in interventional gastroenterology procedures including novel endoscopic procedures for weight loss and bariatric surgery complications. Endoscopic bariatric therapies, performed entirely through a natural orifice, are completed as an adjunctive tool to enhance weight loss with lifestyle intervention. Current procedures include intragastric balloon placement, endoscopic suturing for sleeve gastroplasty creation and revision of surgical bypass, aspiration therapy as well as procedures for bariatric surgery complications including strictures, leaks and fistulas. In addition, he performs a wide range of invasive esophagus, stomach, colon, pancreas and bile duct procedures for the diagnosis, treatment, and palliation of gastrointestinal diseases including endoscopic ultrasound (EUS), endoscopic retrograde cholangiopancreatography (ERCP), endoscopic mucosal resection (EMR) and radiofrequency ablation (RFA)/cryotherapy. Dr. Chapman’s research interests include early gastrointestinal tumor diagnosis and interventional device and technique development for the treatment and palliation of obesity and advanced gastrointestinal cancers.

Clinical Interests

Endoscopic bariatric therapies for obesity and weight loss;endoscopic treatment for bariatric surgery complications and weight regain;gastrointestinal interventional endoscopy;gastrointestinal oncology;pancreatic cancer;esophageal cancer;Barrett’s esophagus;palliative cancer care


  • Chapman CG*, Mariani CJ*, Wu F, Kwon JK, Godley LA, et al. TET-catalyzed 5-hydroxymethylcytosine regulates gene expression in differentiating colonocytes and colon cancer. Scientific Reports. 2015 Dec 3; 5:17568. (PMID 26631571).
  • Chapman CG, Siddiqui UD. New Scopes, New Accessories, New Stents for Interventional EUS. Clinical Endoscopy. 2016 Jan;49(1):41-6. (PMID 26855923).
  • Chapman CG, Siddiqui UD, Waxman I et al. Risk of Infection Transmission in Curvilinear Array Echoendoscopes: Results of a Prospective Reprocessing and Culture Registry. Gastrointestinal Endosc. 2016 Jul 28. Epub ahead of print. (PMID 27478029).
  • Catenacci DVT*, Chapman CG* (*co-first authors), Xu P, Koons A, Konda VJ, Siddiqui UD, Waxman I. (2015). “Acquisition of Portal Venous Circulating Tumor Cells From Patients With Pancreaticobiliary Cancers by Endoscopic Ultrasound." Gastroenterology. 2015 Dec;149(7):1794-1803. (PMID 26341722).
  • Chapman CG, Waxman I, Siddiqui UD. EUS Guided Pancreatic Duct Drainage: The Basics of When and How to Perform EUS Guided Pancreatic Duct Interventions. Clinical Endoscopy. 2016. (PMID 27012290).
For a complete list of publications click here:


  • BA, 2004, University of Illinois at Urbana-Champaign, Molecular and Integrative Physiology
  • MD, 2008, Johns Hopkins University School of Medicine, Medicine
  • Residency, 2011, University of Chicago Medicine, Internal Medicine
  • Fellowship, 2015, University of Chicago Medicine, Gastroenterology and Hepatology
  • Fellowship, 2016, University of Chicago Medicine, Advanced Endoscopy