Dr. Chak is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Office
11100 Euclid Ave
Cleveland, OH 44106Phone+1 216-844-8500
Education & Training
- New York Presbyterian Hospital (Columbia Campus)Fellowship, Gastroenterology, 1986 - 1991
- New York Presbyterian Hospital (Columbia Campus)Residency, Internal Medicine, 1984 - 1986
- Columbia University Vagelos College of Physicians and SurgeonsClass of 1984
Certifications & Licensure
- OH State Medical License 1991 - 2027
- FL State Medical License 2014 - 2016
- NY State Medical License 1985 - 1992
- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Gastroenterology
Awards, Honors, & Recognition
- Regional Top Doctor Castle Connolly, 2014
- Fellow (FACP) American College of Physicians, 1998
- Top MD Consumers Checkbook
- Join now to see all
Clinical Trials
- Genetic Determinants of Barrett's Esophagus and Esophageal Adenocarcinoma Start of enrollment: 2005 Oct 01
- Metformin Hydrochloride in Preventing Esophageal Cancer in Patients With Barrett Esophagus Start of enrollment: 2012 Jun 01
- The Cancer of the Pancreas Screening-5 CAPS5)Study Start of enrollment: 2014 Jan 06
Publications & Presentations
PubMed
- 1 citationsImpact of difficult biliary cannulation on post-ERCP pancreatitis: secondary analysis of the stent versus indomethacin trial dataset.Samuel Han, Jingwen Zhang, Valerie Durkalski-Mauldin, Lydia D Foster, Jose Serrano
Gastrointestinal Endoscopy. 2025-03-01 - 1 citationsNonendoscopic Screening for Barrett's Esophagus and Esophageal Adenocarcinoma in At-Risk Veterans.Katarina B Greer, Andrew E Blum, Ashley L Faulx, Erica M Deming, Lauren L Hricik
The American Journal of Gastroenterology. 2025-03-01 - Thirty-day hospital admission following high-risk outpatient ERCP: incidence and analysis of risk factors based on a secondary analysis of the Stent Versus Indomethaci...Patrick Yachimski, Jingwen Zhang, Gregory A Coté, Steven A Edmundowicz, Sachin Wani
Gastrointestinal Endoscopy. 2025-02-04
Authored Content
- Novel Practical Approaches to Barrett’s ScreeningFebruary 2019
- Novel Practical Approaches to Barrett’s ScreeningFebruary 2019
- Gastrointestinal Endoscopy Editorial Board Top 10 Topics: Advances in GI Endoscopy in 2017May 2018
Press Mentions
- Renowned Investigators Awarded $8 Million NIH Grant to Study Lucid Diagnostics' EsoGuard® in at-Risk Patients Without Symptomatic GERDFebruary 27th, 2025
- A Device to Detect Barrett’s Oesophagus and Prevent Oesophageal CancerSeptember 22nd, 2020
- Medical Device Developed by CWRU/UH Researchers Wins 2020 Edison AwardMay 8th, 2020
- Join now to see all
Professional Memberships
- Fellow
- Fellow
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence: