Pediatrics, Sports Medicine in PHILADELPHIA, PA
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John Alexander Duffy is a physician specializing in pediatrics and sports medicine in Philadelphia, PA.
Generated from public NPI Registry data only. Not independently verified — confirm credentials directly with the practice.
Dr. JOHN ALEXANDER DUFFY specializes in Pediatrics, Sports Medicine.
Dr. JOHN ALEXANDER DUFFY practices in PHILADELPHIA, PA.
Dr. JOHN ALEXANDER DUFFY's NPI number is 1861997025.