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John W. Winkler, M.D.

NPI 1659314375ActiveIndividual· Ophthalmology· Des Plaines, IL

Ophthalmology (M.D.) in Des Plaines, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1979). In 2024 Medicare paid $217,697 for 765 patients, and Part D covered 1,382 of their prescriptions, 54% of them generic. Alcon Vision LLC was the largest of 7 companies reporting payments in 2025, $939.94 in all, mostly food and beverage.

Overview

NPI1659314375
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedJun 13, 2006
Last updated in NPPESDec 7, 2021
Certified by providerDec 7, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000X036-066311IL

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 - Ophthalmology (IL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients765
Services billed1,758 across 37 procedure codes
Paid by Medicare$217,697

Part D prescriptions in 2024

Prescriptions (claims)1,382 · 2,378 30-day fills
Patients328
Total drug cost$143,706
Generic share54% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Graduation year1979
Medicare specialtyOphthalmology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$939.94 · 30 payments from 7 companies
  • 2024$970.53 · 27 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Alcon Vision LLC$416.286
Abbvie Inc.$334.4315
Amgen Inc.$115.385
Sight Sciences, Inc.$22.191
Thea Pharma Inc.$20.851

What the 2025 payments were for

  • Food and Beverage$939.94 · 30 payments

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

Other ophthalmologists in Des Plaines

All 20 ophthalmologists in Des Plaines · All ophthalmologists in Illinois