About
Keith Hazleton, MD, PhD
I am an Attending Physician in the Division of Gastroenterology, Hepatology, and Nutrition at Children's Hospital Los Angeles. My research focuses on the intersections of nutrition, infection, and liver disease in pediatric populations.
My work investigates how dietary factors influence disease susceptibility and outcomes, with particular emphasis on Clostridioides difficile infection, portal hypertension, and the gut-liver axis. I collaborate with the Lozupone Lab at the University of Colorado Anschutz Medical Campus to integrate advanced microbiome analysis methods into my research.
Education
MD, PhD (Biomedical Science) - Albert Einstein College of Medicine, 2013
BS (Biochemistry/Biophysics) - Oregon State University, 2002
Residency: General Pediatrics, University of Colorado/Children's Hospital Colorado
Fellowship: Pediatric Gastroenterology, Hepatology and Nutrition, University of Colorado/Children's Hospital Colorado
Fellowship: Advanced/Transplant Hepatology, University of Colorado/Children's Hospital Colorado
Current Position
Assistant Professor of Pediatrics
University of Southern California, Keck School of Medicine
Children's Hospital Los Angeles
Currently a SC-CTSI KL2 Scholar
Board Certifications
- American Board of Pediatrics - General Pediatrics (2016)
- American Board of Pediatrics - Pediatric Gastroenterology (2019)
- American Board of Pediatrics - Pediatric Transplant Hepatology (2020)
Research Interests
- Dietary influences on C. difficile infection
- Portal hypertension management
- Microbiome-liver disease interactions
- Gut-liver axis and pediatric liver transplantation
Select Honors & Leadership
- Alpha Omega Alpha Honor Medical Society (2013)
- Interim Section Chief for Clinical Affairs, University of Arizona College of Medicine, Tucson (2022-2023)
- Co-Chair, Grants Subcommittee, NASPGHAN Research Committee (2022-2025)
Affiliations
Primary Appointment:
Children's Hospital Los Angeles
Division of Gastroenterology, Hepatology, and Nutrition
Collaborations:
Frey Lab, Children's Hospital Los Angeles
Lozupone Lab, University of Colorado Anschutz Medical Campus
Southern California Clinical and Translational Science Institute (SC-CTSI)
Curriculum Vitae
Contact
For inquiries about research collaborations or questions about our work, please visit my CHLA profile or connect via LinkedIn.