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Jack Dennis Zandstra

NPI 1881362051ActiveIndividual· Physician Assistant· Willowbrook, IL

Physician Assistant in Willowbrook, Illinois, trained at Albany Medical College of Union University (class of 2021). 50 Medicare patients in 2024, $4,711 paid; nearly all of their 135 Part D prescriptions were generic (97%). Cipher Pharmaceuticals US LLC reported $28.23 in payments in 2025, mostly food and beverage.

Overview

NPI1881362051
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedSep 2, 2021
Last updated in NPPESSep 2, 2021
Certified by providerSep 2, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Physician Assistant Primary363A00000X1171553IL

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 - Physician Assistant (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients50
Services billed136 across 33 procedure codes
Paid by Medicare$4,711

Part D prescriptions in 2024

Prescriptions (claims)135 · 143 30-day fills
Patients80
Total drug cost$1,705
Generic share97% of claims

Medicare sources and data years

Education and affiliations

Medical schoolAlbany Medical College of Union University
Graduation year2021
Medicare specialtyPhysician Assistant

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$28.23 · 4 payments from 1 company

Top paying companies in 2025

CompanyAmountPayments
Cipher Pharmaceuticals US LLC$28.234

What the 2025 payments were for

  • Food and Beverage$28.23 · 4 payments

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

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