JOHN W WINKLER M.D.
NPI 1659314375
Ophthalmology in Des Plaines, IL
About John W Winkler M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN W WINKLER M.D. (NPI 1659314375) is an individual ophthalmology provider in Des Plaines, Illinois, licensed in Illinois (036-066311) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Elmhurst Memorial Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1979).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John W Winkler M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show John Winkler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Des Plaines, IL 60016
- Reassigned Medicare billing, Illinois enrollment
- 4 clinicians in this Medicare group
Elgin, IL 60123
- Reassigned Medicare billing, Illinois enrollment
- 18 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 12
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Elmhurst Memorial Hospital
Acute Care Hospitals · Elmhurst, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60016 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DES PLAINES, IL 60016
DES PLAINES, IL 60016
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Winkler's NPI number?
The NPI number for John Winkler is 1659314375. It was assigned to this individual provider in the NPPES registry on June 13, 2006.
Where is John Winkler located?
John Winkler practices at 940 Lee St, Des Plaines, IL 60016. The listed phone number is (847) 299-5501.
What is John Winkler's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is John Winkler enrolled in Medicare?
Yes. John Winkler is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Winkler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Winkler reassigns Medicare benefits to 2 organizations: Des Plaines Eye Physicians & Surgeons, Ltd. (Des Plaines, IL) and Specialty Care Institute, PLLC (Elgin, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Winkler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Winkler accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list John Winkler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Winkler affiliated with any hospitals?
According to CMS data, John Winkler is affiliated with Elmhurst Memorial Hospital.
When was this NPI record last updated?
The NPPES record for John Winkler was last updated on December 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John W Winkler, M.D. · NPI 1659314375
Ophthalmology physician in Des Plaines, Illinois. Individual provider, active in the CMS NPPES registry since June 13, 2006.
## Identity
- **NPI:** 1659314375 (Entity type: Individual)
- **Enumerated:** June 13, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 036-066311 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 940 LEE ST, Des Plaines, IL 60016-6555
- **Phone:** (847) 299-5501
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Des Plaines Eye Physicians & Surgeons, Ltd. (NPI 1467593004, Des Plaines, IL); Specialty Care Institute, PLLC (NPI 1891095139, Elgin, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 1979
## Record status
- **NPPES last updated:** December 7, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1659314375) · Data from the CMS NPPES public registry.