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John Alexander Duffy, MD

NPI 1861997025ActiveIndividual· Pediatrics, Sports Medicine· Philadelphia, PA

Pediatrics, Sports Medicine (MD) in Philadelphia, Pennsylvania, trained at New York Medical College (class of 2018). In 2024 Medicare paid $16,561 for 99 patients, and Part D covered 67 of their prescriptions, 85% of them generic.

Overview

NPI1861997025
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMar 28, 2018
Last updated in NPPESJul 5, 2026
Certified by providerJul 5, 2026

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (MN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients99
Services billed206 across 10 procedure codes
Paid by Medicare$16,561

Part D prescriptions in 2024

Prescriptions (claims)67 · 79 30-day fills
Patients21
Total drug cost$4,914
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolNew York Medical College
Graduation year2018
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

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