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Yanhong Zhang, M.D.

NPI 1639558737ActiveIndividual· Internal Medicine, Pulmonary Disease· Marshfield, WI

Internal Medicine, Pulmonary Disease (M.D.) with Cooper Physician Offices PA, practicing in Marshfield, Wisconsin. In 2024 Medicare paid $90,840 for 295 patients, and Part D covered 176 of their prescriptions, 73% of them generic. Pfizer Inc. reported $22.82 in payments in 2025, mostly food and beverage. Lists Cooper University Hospital and 2 other hospitals as hospital affiliations.

Overview

NPI1639558737
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 21, 2015
Last updated in NPPESOct 21, 2026
Certified by providerOct 21, 2026

Specialties and licenses

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 - Hospitalist (NJ); Practitioner - Internal Medicine (PA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients295
Services billed1,168 across 19 procedure codes
Paid by Medicare$90,840

Part D prescriptions in 2024

Prescriptions (claims)176 · 192 30-day fills
Patients69
Total drug cost$22,892
Generic share73% of claims

Medicare sources and data years

Education and affiliations

Graduation year1993
Medicare specialtyHospitalist
Secondary specialtiesPulmonary Disease

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$22.82 · 1 payment from 1 company
  • 2024$201.31 · 7 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Pfizer Inc.$22.821

What the 2025 payments were for

  • Food and Beverage$22.82 · 1 payment

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

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