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Frazer A. Wadenstorer, M.D.

NPI 1861492167ActiveIndividual· Internal Medicine, Pulmonary Disease· Flint, MI

Internal Medicine, Pulmonary Disease (M.D.) in Flint, Michigan, trained at Wayne State University School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $1,235,200 for 1,755 claims, against $33,590 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 22 companies reporting payments in 2025, $1,302 in all, mostly food and beverage.

Overview

NPI1861492167
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 28, 2005
Last updated in NPPESNov 13, 2009

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Pulmonary Disease Primary207RP1001X4301043067MI

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)Enrolled Practitioner - Pulmonary Disease (MI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients133
Services billed544 across 15 procedure codes
Paid by Medicare$33,590

Part D prescriptions in 2024

Prescriptions (claims)1,755 · 2,552 30-day fills
Patients283
Total drug cost$1,235,200
Generic share32% of claims

Medicare sources and data years

Education and affiliations

Medical schoolWayne State University School of Medicine
Graduation year1979
Medicare specialtyPulmonary Disease
Secondary specialtiesCritical Care (Intensivists)

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,302 · 65 payments from 22 companies
  • 2024$866.65 · 36 payments from 20 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,302 · 65 payments

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

Other Internal Medicine, Pulmonary Disease providers in Flint

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