Caroline C. Horner, M.D.

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Associate Professor of Pediatrics, Allergy, Immunology and Pulmonary Medicine
Researcher, Patient Oriented Research Unit
Allergy, Immunology and Pulmonary Medicine

phone: (314) 454-2694

Clinical Interests

Dr. Horner is a member of the Division of Allergy, Immunology and Pulmonary Medicine. She received her undergraduate degree in chemistry from Washington University. She received her medical degree from and completed a residency in Internal Medicine and Pediatrics at St. Louis University. She completed her Allergy/Immunology fellowship at the University of Texas Medical Branch in Galveston, TX. She joined the faculty of Washington University in 2006. She is board certified in Pediatrics, Internal Medicine, and Allergy and Clinical Immunology. She is a member of several organizations including the American Academy of Allergy, Asthma, & Immunology (AAAAI). Dr. Horner’s research interests include childhood asthma. She is currently conducting a study on the association of stress and nocturnal asthma symptoms in children with support from the AAAAI Gail G. Shapiro Clinical Faculty Award. She is also involved with research efforts through AsthmaNet, a multi-center network examining therapeutic approaches to asthma.


  • BA, universali cum honore, Washington University1993
  • MD, cum laude, St. Louis University School of Medicine2000
  • MSCI, Washington University School of Medicine2011


  • Medical Research Technician, Washington University School of Medicine and St. Louis University1994 - 1996
  • Summer Research Fellow, St. Louis University School of Medicine1997 - 1997
  • Resident, St. Louis University School of Medicine2000 - 2004
  • Fellow, University of Texas Medical Branch2004 - 2006

Licensure and Board Certification

  • 2004 - PresAmerican Board of Internal Medicine
  • 2004 - PresAmerican Board of Pediatrics
  • 2006 - PresAmerican Board of Allergy and Immunology
  • 2006 - PresMO, Medical License

Honors and Awards

  • Medical School Class President, St. Louis University School of Medicine1998 - 2000
  • Alpha Omega Alpha, St. Louis University School of Medicine1999
  • Alpha Sigma Nu, National Jesuit honor society, St. Louis University School of Medicine1999
  • Merck Book Award, awarded for “significant contributions to the welfare of St. Louis University School of Medicine, its students, and its academic program”2000
  • Academic Fellowship Award, University of Texas Medical Branch2005
  • Nominee Outstanding Resident/Fellow Award, University of Texas Medical Branch2005
  • Nominee Outstanding Resident/Fellow Award, University of Texas Medical Branch2006
  • Clinical Research Training Center Postdoctoral Program Scholar, Washington University School of Medicine2008 - 2011
  • Gail G Shapiro Clinical Faculty Award, Allergy, Asthma & Immunology Education and Research Trust, American Academy of Allergy, Asthma & Immunology2010
  • NIH Loan Repayment Program Recipient2011 - 2014
  • Best Doctors in America® 2019 - 2020 List2019
  • Best Doctors in America® 2020 - 2021 List2020

Recent Publications view all (12)

  1. Peanut Allergy Diagnosis- a 2020 Practice Parameter Update, Systematic Review, and GRADE Analysis J Allergy Clin Immunol. 2020;S0091-6749(20):31137-4. doi:10.1016/j.jaci.2020.07.031  PMID:32810515 
  2. Rhinitis 2020: A Practice Parameter Update J Allergy Clin Immunol. 2020;S0091-6749(20):31023-X. doi:10.1016/j.jaci.2020.07.007  PMID:32707227 
  3. Making the GRADE in anaphylaxis management: Toward recommendations integrating values, preferences, context, and shared decision making. Ann Allergy Asthma Immunol. 2020;124(6):526-535. doi:10.1016/j.anai.2020.03.009  PMID:32199979  
  4. Anaphylaxis-a 2020 practice parameter update, systematic review, and Grading of Recommendations, Assessment, Development and Evaluation (GRADE) analysis J Allergy Clin Immunol. 2020;145(4):1082-1123. doi:10.1016/j.jaci.2020.01.017  
  5. Treatment of seasonal allergic rhinitis: An evidence-based focused 2017 guideline update. Ann Allergy Asthma Immunol. 2017;119(6):489-511.e41. PMID:29103802 
  6. Daily global stress is associated with nocturnal asthma awakenings in school-age children. J Allergy Clin Immunol. 2016. PMID:27246525 
  7. Most nocturnal asthma symptoms occur outside of exacerbations and associate with morbidity. J Allergy Clin Immunol. 2011;128(5):977-82.e1-2. doi:10.1016/j.jaci.2011.07.018  PMCID:PMC3408598  PMID:21855126 
  8. Diagnosis and management of asthma in preschool and school-age children: focus on the 2007 NAEPP Guidelines. Curr Opin Pulm Med. 2009;15(1):52-6. doi:10.1097/MCP.0b013e32831da8ea  PMID:19077706 
  9. Age-related changes in the asthmatic phenotype in children. Curr Opin Pediatr. 2007;19(3):295-9. doi:10.1097/MOP.0b013e32809913a2  PMID:17505189 
  10. Management approaches to intermittent wheezing in young children. Curr Opin Allergy Clin Immunol. 2007;7(2):180-4. doi:10.1097/ACI.0b013e32807fafd2  PMID:17351473 
  11. Protein kinase C acylation by palmitoyl coenzyme A facilitates its translocation to membranes. Biochemistry. 1998;37(34):11953-61. doi:10.1021/bi980565w  PMID:9718320 
  12. Accumulation of unsaturated acylcarnitine molecular species during acute myocardial ischemia: metabolic compartmentalization of products of fatty acyl chain elongation in the acylcarnitine pool. Biochemistry. 1996;35(24):7903-9. doi:10.1021/bi960552n  PMID:8672492 
Last updated: 09/22/2020
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