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John David Anczak, PAC

NPI 1881793206ActiveIndividual· Physician Assistant· Eau Claire, WI

Physician Assistant (PAC) with Mayo Clinic Health System-Northwest Wisconsin Region Inc and 2 other groups, practicing in Eau Claire, Wisconsin. 404 Medicare patients in 2024, $32,693 paid; nearly all of their 681 Part D prescriptions were generic (90%). Lists M Health Fairview St John's Hospital and 2 other hospitals as hospital affiliations.

Overview

NPI1881793206
StatusActive
Entity typeIndividual
CredentialPAC
Sole proprietorNo
NPI issuedSep 22, 2006
Last updated in NPPESJul 20, 2026
Certified by providerJul 20, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Physician Assistant Primary363A00000X1241WI
Physician Assistant363A00000X10686MN

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Physician Assistant (MN); Practitioner - Physician Assistant (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients404
Services billed702 across 55 procedure codes
Paid by Medicare$32,693

Part D prescriptions in 2024

Prescriptions (claims)681 · 715 30-day fills
Patients500
Total drug cost$8,557
Generic share90% of claims

Medicare sources and data years

Education and affiliations

Graduation year2000
Medicare specialtyPhysician Assistant

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

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