Individual provider · Type 1 NPI

John Alexander Duffy, MD

Pediatric Sports Medicine Physician · Philadelphia, PA

NPI number 1861997025 Active

Practice location

3401 Civic Center Blvd
Philadelphia, PA 19104-4319

Specialties and licenses

Taxonomy	Code	License
Sports Medicine (Internal Medicine) Physician	207RS0010X	MT235940 (PA)
Pediatric Sports Medicine Physician Primary	2080S0010X	MT235940 (PA)

Pediatric Sports Medicine Physician: A pediatrician who is responsible for continuous care in the field of sports medicine, not only for the enhancement of health and fitness, but also for the prevention of injury and illness. A sports medicine physician must have knowledge and experience in the promotion of wellness and the prevention of injury. Knowledge about special areas of medicine such as exercise physiology, biomechanics, nutrition, psychology,…

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About NPI 1861997025

John Alexander Duffy, MD's National Provider Identifier is 1861997025, issued on Mar 28, 2018. The primary taxonomy on file is Pediatric Sports Medicine Physician (2080S0010X), and the practice location is in Philadelphia, PA. The record was last updated on Jul 5, 2026.