Magee L. DeFelice, MD


Primary Office

Nemours Children's Hospital, Delaware Nemours Children's Hospital, Delaware 1600 Rockland Road Wilmington, DE 19803 Appointment: (800) 416-4441

Other Offices

Get to Know Me

Growing up in Ocean City, NJ, I was active in track and cross country and always loved science. Before medical school, I majored in psychology with a focus on child development at Duke University. I find it extremely rewarding to work with children and always knew I wanted to be a pediatrician.

Why I Treat Children

The doctors I had as a child were role models for me. Both of my parents are educators and they also inspire me to want to make a difference. I feel it is a privilege when families put their trust in me and allow me to care for their children.

What I'm Passionate About

I am passionate about education and working with the physicians in our fellowship program. I hope to be an inspiration for medical students and residents the way that my mentors at Thomas Jefferson University were for me. I also believe in adding to our medical knowledge through continuing research.

How I Try to Make A Difference

I take the time to get to know my patients and their families. I believe all children should enjoy a high quality of life, and I strive to treat my patients so they can excel in school, participate in sports and other activities, and spend time with their family and friends.

Education & Training


  • Pediatric Allergy & Immunology - Thomas Jefferson University Hospital, 2012

Internship Residency

  • Pediatrics - Jefferson Medical College/Alfred I. duPont Hosp., 2009

Medical/Dental School

  • MD - Thomas Jefferson University - Medical College, 2006

Board Certifications

  • American Board of Allergy and Immunology/Allergy & Immunology
  • American Board of Pediatrics/General Pediatrics

Awards & Recognition

  • 2015 SJ Magazine's Top Docs for Kids
  • 2014 Delaware Today magazine, Top Doctors

Insurance Accepted

  • Aetna Better Health PA Kids HMO
  • Aetna HMO
  • Aetna PPO/EPO/POS
  • Aetna PPO/POS/EPO
  • Amerihealth Caritas Delaware
  • Amerihealth Caritas Delaware NJ
  • Carefirst MD Community Health Plan Mcaid
  • Cigna & Great West HMO/POS/EPO
  • Cigna & Great West PPO
  • Cigna/Great West HMO EPO POS
  • Cigna/Great West PPO
  • Delaware First Health
  • Delaware Medicaid/Diamond State
  • Delaware Medicare
  • Devon Health Services
  • Fidelis Care NJ Medicaid HMO
  • First Health/Affordable PPO
  • Geisinger Health Plan Commercial
  • Georgia Medicaid/Georgia Better Health/Peachcare
  • Global Medical Managment DE/PA
  • Global Medical Mangment NJ
  • Health Partners Medicaid/Kidz Partner HMO
  • Highmark Blue Cross Blue Shield of Delaware
  • Highmark Blue Cross Blue Shield of Pennsylvania
  • Highmark Medicaid Health Options
  • Horizon Blue Cross Blue Shield of New Jersey
  • Independance Blue Cross/Amerihealth/Keystone Health Plan
  • Insurance Administrators of America
  • INTEGRA Administrative Group (ClaimsBridge)
  • Interlink Transplant
  • Keystone First Medicaid HMO
  • Lifetrac Transplant
  • Maryland Medicaid
  • Multiplan PPO
  • National Transplant (Humana)
  • New Jersey Medicaid
  • Olympus Managed Healthcare PPO NJ
  • Pennsylvania Medicaid
  • Plan Vista/NPPN PPO
  • Preferred Healthcare PPO
  • Private Health Care Systems (PHCS)
  • Private Healthcare Systems (PHCS)
  • Qualcare HMO/POS/PPO
  • Star Healthcare Network
  • Star Healthcare Network
  • Three Rivers Provider Network
  • Tricare/Humana Military Health Services/CHAMPVA
  • United Healthcare of the Mid-Atlantic
  • UPMC Medicaid
  • US Family Health Plan
  • Wellpoint Maryland Medcaid

  • Chronic Rhinosinusitis
  • Food Allergies

Research Activities

I have published several research articles in the areas of pediatric allergy and immunology. I am currently studying the immune system of children with cystic fibrosis.

Medical Interests

  • Allergic rhinitis
  • Asthma
  • Recurrent infection
  • Food allergies

  • Dorsey, M., Wright, N. A. M., Chaimowitz, N. S., Davila Saldana, B. J., Miller, H., Keller, & Heimall, J. (2021). Correction to: Infections in Infants with SCID: Isolation, Infection Screening and Prophylaxis in PIDTC Centers (Journal of Clinical Immunology, (2021), 41, 1, (38-50), 10.1007/s10875-020-00865-9). Journal of Clinical Immunology, 41(2), 498-500. doi:10.1007/s10875-020-00917-0

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  • Dorsey, M. J., Wright, N. A. M., Chaimowitz, N. S., Davila Saldana, B. J., Miller, H., Keller, & Heimall, J. (2021). Infections in Infants with SCID: Isolation, Infection Screening, and Prophylaxis in PIDTC Centers. Journal of Clinical Immunology, 41(1), 38-50. doi:10.1007/s10875-020-00865-9

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  • Mehta, P., DeFelice, M. L., Malloy, C., Hossain, J., & Gordon, H. (2020). Pediatric provider knowledge of early peanut introduction recommendations. Annals of Allergy, Asthma and Immunology, 125(5), 602-603.e3. doi:10.1016/j.anai.2020.06.037

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  • Eng, S. S., & Defelice, M. L. (2016). The role and immunobiology of eosinophils in the respiratory system: A comprehensive review. Clinical Reviews in Allergy and Immunology, 50(2), 140-158. doi:10.1007/s12016-015-8526-3

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  • English