NPI Lens

Mark Donald Fisher, MD

NPI 1447229562ActiveIndividual· Internal Medicine, Addiction Medicine· Buffalo, NY

Internal Medicine, Addiction Medicine (MD) in Buffalo, New York, licensed in NY, with an NPI issued in March 2006. Part D covered 376 prescriptions written in 2024, 100% of them generic. Stryker Corporation was the largest of 3 companies reporting payments in 2025, $211.92 in all, mostly food and beverage.

Overview

NPI1447229562
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedMar 14, 2006
Last updated in NPPESNov 21, 2023
Certified by providerNov 21, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Addiction Medicine Primary207RA0401X207389NY

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 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)376 · 376 30-day fills
Patients17
Total drug cost$17,909
Generic share100% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$211.92 · 3 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Stryker Corporation$147.301
Medline Industries LP$43.191
Avita Medical Americas, LLC$21.431

What the 2025 payments were for

  • Food and Beverage$211.92 · 3 payments

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

Other Internal Medicine, Addiction Medicine providers in Buffalo

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