LeonardBWeinstockMD

Gastroenterology • Creve Coeur, MO

Advanced Endoscopic Interventional, Gastrointestinal Functional & Motility Disorders

President, Specialists in Gastroenterology and Advanced Endoscopy Center

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Office
11525 Olde Cabin Rd
Ste 101
Creve Coeur, MO 63141
Phone+1 314-997-0554

Fax+1 314-997-5086

Education & Training

Washington University/B-JH/SLCH ConsortiumFellowship, Gastroenterology, 1985 - 1987
Rochester General HospitalResidency, Internal Medicine, 1981 - 1985
University of Rochester School of Medicine and DentistryClass of 1981

Certifications & Licensure

MO State Medical License 1986 - 2026
IL State Medical License 1996 - 1999
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification NextGen Ambulatory EHR, NextGen Healthcare, 2013
Top MD Consumers Checkbook
Fellow (FACG) American College of Gastroenterology

Clinical Trials

Evaluate the Safety and Diagnostic Advantages of Tilt Down Verses Standard Horizontal Colonoscopy Positioning Start of enrollment: 2012 May 01
Terminated
Not Applicable
SER-109 Versus Placebo to Prevent Recurrent Clostridium Difficile Infection (RCDI) Start of enrollment: 2015 May 01
Completed
Phase 2
Stool Sample Collection Protocol for Development of Screening Test for Colorectal Cancer and Other Digestive Tract Cancers Start of enrollment: 2014 Oct 01
Terminated

Publications & Presentations

PubMed

Imatinib and Trigger Avoidance for Mast Cell Activation Syndrome Presenting With Attacks of Abdominal Pain, Nausea, Vomiting, and Diarrhea.
Leonard B Weinstock, Megan Tenkhoff, Jordan Gutovich, Lawrence B Afrin
ACG Case Reports Journal. 2024-06-01
3 citations
Neuropsychiatric Manifestations of Mast Cell Activation Syndrome and Response to Mast-Cell-Directed Treatment: A Case Series.
Leonard B Weinstock, Renee M Nelson, Svetlana Blitshteyn
Journal of Personalized Medicine. 2023-10-31
Evaluation of a tryptase depletion index for better pathologic identification of mast cell activation syndrome.
Tomasz Zienkiewicz, Jürgen Homann, Martin Mücke, Holger Seidel, Hans-Jörg Hertfelder
Zeitschrift Fur Gastroenterologie. 2023-03-01

Journal Articles

The Significance of Mast Cell Activation in the Era of Precision Medicine
Ali Rezaie, Leonard B Weinstock, Nature

Press Mentions

St. Louis Doctor Studying Possible Treatment for Long COVID-19 SymptomsJanuary 29th, 2022
Long-Haul COVID Comes into Focus Thanks to St. Louis Doctor’s ResearchJanuary 27th, 2022
'Tomorrow Can Be Better': New Research Gives Hope to COVID-19 Long HaulersJanuary 27th, 2022
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Professional Memberships