

Gastroenterology
Osama Altayar, MD
Associate Professor of Medicine
Dr. Osama Altayar, MD, is a board-certified gastroenterologist practicing in Saint Louis, Missouri, with expertise in pancreatic disease and esophageal disorders. He manages a broad spectrum of gastrointestinal conditions, including abdominal pain, ulcers, diarrhea, gastrointestinal cancer, jaundice, iron deficiency anemia, and diseases of the stomach, intestines, liver, and gallbladder. As a general gastroenterologist at Washington University School of Medicine and BJC HealthCare, Dr. Altayar p
15+
Years in Practice
Credentials
Board Certifications
- Gastroenterology (ABIM)
- Internal Medicine (ABIM)
Education & Training
- Washington University in St. Louis School of Medicine — Fellowship, Gastroenterology (2019)
- Allegheny General Hospital — Residency, Internal Medicine
- University of Damascus — M.D.
Peer Recognition
- American Gastroenterological Association — Outstanding Service Award
2021
- Castle Connolly — Top Doctor
2022-2026 (5 years)
- St. Louis Magazine — Top Doctor
2022-2025 (4 years)
2024
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- Barnes-Jewish Hospital
- Progress West Hospital
- Missouri Baptist Medical Center
- Barnes-Jewish West County Hospital
Languages
English, Arabic
Experience
15+ years in practice