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Rosmarie Ahsan, PA-C

NPI 1275084089ActiveIndividual· Physician Assistant· Irvine, CA

Physician Assistant (PA-C) in Irvine, California, licensed in CA, with an NPI issued in October 2016. Part D covered 442 prescriptions written in 2024, 92% of them generic. Amgen Inc. reported $23.05 in payments in 2025, mostly food and beverage.

Overview

NPI1275084089
StatusActive
Entity typeIndividual
CredentialPA-C
Sole proprietorNo
NPI issuedOct 17, 2016
Last updated in NPPESOct 17, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Physician Assistant Primary363A00000X53920CA

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)Not in the public enrollment file of Oct 1, 2026

Part D prescriptions in 2024

Prescriptions (claims)442 · 956 30-day fills
Patients63
Total drug cost$15,373
Generic share92% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$23.05 · 1 payment from 1 company
  • 2024$42.29 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$23.051

What the 2025 payments were for

  • Food and Beverage$23.05 · 1 payment

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

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