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Margaret O'Brien, MD

NPI 1639871080ActiveIndividual· Dermatology· Philadelphia, PA

Dermatology (MD) in Philadelphia, Pennsylvania, licensed in PA, with an NPI issued in March 2023. Part D covered 278 prescriptions written in 2024, 83% of them generic. Janssen Biotech, Inc. was the largest of 15 companies reporting payments in 2025, $2,610 in all, mostly food and beverage.

Overview

NPI1639871080
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedMar 20, 2023
Last updated in NPPESJul 9, 2024
Certified by providerJul 9, 2024

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 Order and Referring Only - Internal Medicine (PA)

Part D prescriptions in 2024

Prescriptions (claims)278 · 317 30-day fills
Patients104
Total drug cost$139,006
Generic share83% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$2,610 · 47 payments from 15 companies
  • 2024$627.01 · 7 payments from 6 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$2,443 · 45 payments
  • Education$166.99 · 2 payments

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

Other Dermatology providers in Philadelphia

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