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Anne Marie Klassert, NP

NPI 1467448985ActiveIndividual· Nurse Practitioner, Adult Health· Stony Brook, NY

Nurse Practitioner, Adult Health (NP) with Stony Brook Urology University Faculty Practice Corporation, practicing in Stony Brook, New York. Their prescriptions cost Medicare Part D more than their services did: $138,477 for 893 claims, against $36,691 paid for services in 2024. Janssen Biotech, Inc. was the largest of 20 companies reporting payments in 2025, $1,954 in all, mostly food and beverage. Lists Suny/Stony Brook University Hospital as a hospital affiliation.

Overview

NPI1467448985
StatusActive
Entity typeIndividual
CredentialNP
Sole proprietorNo
NPI issuedSep 20, 2005
Last updated in NPPESJul 13, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Nurse Practitioner, Adult Health Primary363LA2200XF300922-1NY

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 - Nurse Practitioner (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients232
Services billed464 across 21 procedure codes
Paid by Medicare$36,691

Part D prescriptions in 2024

Prescriptions (claims)893 · 1,959 30-day fills
Patients285
Total drug cost$138,477
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Graduation year1993
Medicare specialtyNurse Practitioner

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,954 · 44 payments from 20 companies
  • 2024$1,318 · 36 payments from 17 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,945 · 43 payments
  • Education$8.60 · 1 payment

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

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