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3959 BroadwayNew York, NY 10032
Phone+1 202-305-5437
Dr. Wallach is on Doximity
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Education & Training
University of California (San Francisco)Fellowship, Pediatric Gastroenterology, 2016
New York Presbyterian Hospital (Columbia Campus)Residency, Pediatrics, 2012 - 2015
Medical College of WisconsinClass of 2012
Certifications & Licensure
NY State Medical License 2013 - 2026
CA State Medical License 2015 - 2021
American Board of Pediatrics Pediatrics- American Board of Pediatrics Pediatric Gastroenterology
Clinical Trials
- Examining the Effect of Ondansetron on Bowel Prep Success Start of enrollment: 2021 Jan 01
Roles: Principal Investigator, Contact
Publications & Presentations
PubMed
- FODMAP-Targeting Digestive Enzyme Blend for Management of Gastrointestinal Symptoms: A "Real-World" Pre-Post Intervention Cohort Study.Alexander J Kaye, Sarah R Meyers, David Hachuel, Jocelyn Wells, Thomas Wallach
Gastro Hep Advances. 2026-01-01 - Severe acute respiratory syndrome coronavirus 2 transaminase elevation likely of non-hepatic origin, with protection from older age and vaccination.Antonia F Ovale, Cassandra Charles, Janet Rosenbaum, Priscila Villalba-Davila, Shagun Sharma
JPGN Reports. 2025-08-01 - 4 citationsEconomic Benefit of Implementation of Pediatric Transnasal Endoscopy in Eosinophilic Esophagitis.Michael Joseph, Joseph Steinberg, Jacob A Mark, Thomas Wallach, Nathalie Nguyen
Clinical Gastroenterology and Hepatology. 2025-08-01
Press Mentions
Assay Variability in Fecal Calprotectin Testing May Be Driving Unnecessary ColonoscopiesJanuary 26th, 2026
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