Keith Hazleton

Keith Hazleton, MD, PhD is a pediatric hepatologist in the Division of Gastroenterology, Hepatology and Nutrition at Children’s Hospital Los Angeles and Assistant Professor of Clinical Pediatrics at the Keck School of Medicine of USC. His research interests include gut microbiome dysbiosis in pediatric disease, with a focus on diet-microbiome interactions in Clostridioides difficile infection and emerging work on the gut-liver axis in biliary atresia. His PhD training at Albert Einstein College of Medicine focused on purine salvage pathway enzymology and transition state analogue inhibitor development targeting Plasmodium falciparum.

Dr. Hazleton is dedicated to mentoring medical students, residents, and fellows in pediatric gastroenterology and hepatology. He serves on the NASPGHAN Research Committee, where he previously co-chaired the Grants Subcommittee and currently serves on the Abstracts Subcommittee.

• American Gastroenterological Association Institute: Gut Microbiota for Health World Summit Travel Award, 2019
• Front Range Microbiome Symposium: Best Contributed Presentation, 2019

• Oregon State University , Corvallis, OR — BS — 04/2002 — Biochemistry/Biophysics
• The Albert Einstein College of Medicine, Bronx, NY — MD — 05/2013 — Medicine
• The Albert Einstein College of Medicine, Bronx, NY — PhD — 05/2013 — Biomedical Science
• Children's Hospital Colorado/University of Colorado , Aurora, CO — 06/2015 — General Pediatrics
• Children's Hospital Colorado/University of Colorado , Aurora, CO — 06/2019 — Pediatric Gastroenterology
• Children's Hospital Colorado/University of Colorado , Aurora, CO — 06/2020 — Pediatric Advanced/Transplant Hepatology

• Dietary and synbiotic strategy to limit gut microbiome dysbiosis and protect against Clostridioides difficile infection
  NIH · U01AI150589 · Apr 23, 2021 – Mar 31, 2026 · Role: Co-Investigator

• Kraft, Colleen
• Wayne, Alan
• Klausner, Jeffrey
• Nanda, Neha
• Kloner, Robert
• Gutierrez, Yvonne