Alexandra A. Horwitz, MD

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Alexandra A. Horwitz, MD
Employed by Penn State Health
Pediatric Allergy and Immunology

Academic Appointments

Associate Professor, Department of Medicine
Associate Professor, Department of Pediatrics
Course Director, Cardiorespiratory Scientific Principles of Medicine, Host Defence Host Response and Problem Based learning blocks
Quality Officer, Division of Pediatric Allergy Immunology

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About Me

Alexandra Horwitz, MD, received her undergraduate degree in biology from Franklin & Marshall College in Lancaster, Pa., and completed medical school at Temple University College of Medicine in Philadelphia. She completed her internal medicine-pediatric residency at Penn State Health Milton S. Hershey Medical Center. Dr. Horwitz then completed her fellowship in allergy and immunology at the AI duPont Children's Hospital/Thomas Jefferson University Hospital in Philadelphia. She worked as an allergy-immunology physician in a private practice in State College, Pa., before joining the faculty at the Milton S. Hershey Medical Center. She is currently assistant professor of pediatrics and medicine. Dr. Horwitz is a fellow of the American Academy of Allergy, Asthma and Immunology and of the American College of Allergy, Asthma and Immunology, as well as a member of the Pennsylvania Allergy and Asthma Association.


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Professional Education


Medical School, Temple University School of Medicine (Pennsylvania) - 2001


Fellowship, Allergy & Immunology Thomas Jefferson University Hospital (Pennsylvania) - 2008


Residency, Internal Medicine/ Pediatrics Milton S. Hershey Medical Center - 2005


Internship, Internal Medicine/ Pediatrics University of Maryland Medical System (Baltimore) - 2002

Research Interests

  • Eosinophilic esophagitis and anxiety in children

Academic Interests

  • Eosinophilic esophagitis
  • Food allergy
  • Medical student, resident, and fellow education and curriculum development
  • Severe combined immunodeficiency