NPPES file of Aug 9, 2026

Margaret Anna Wilczek, O.D.

Optometrist · Downers Grove, IL

Margaret Anna Wilczek, O.D. is an optometrist with a practice address in Downers Grove, Illinois, and NPI 1831542273, issued on Jul 21, 2016. Check the license (Illinois 046.010985, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831542273
Name
Margaret Anna Wilczek
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
046.010985 IL
Self-reported in NPPES; status is on the state search
Practice location
3450 Lacey RD, Downers Grove, IL 60515
Phone
(630) 743-4500
Enumerated
Jul 21, 2016
Record last updated
Jun 19, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(630) 743-4537
Medicare enrollment
Enrolled (PECOS I20180423000101); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 2,697 in Illinois → Look up another NPI →

Also registered at 3450 Lacey RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lauren AbousslemanGeneral Practice Dentistry1184440406
  2. Aarlan Aceto, ODOptometrist1013064385
  3. Aatifa Ahmed, CCC-SLP/LSpeech-Language Pathologist1770201378
  4. John Anderson, DDSDentist1134680101
  5. Dawn Arnashus, DDSGeneral Practice Dentistry1316166192
  6. Carrie Arroyo, MA CCC SLPSpeech-Language Pathologist1285799064

Verify Margaret Anna Wilczek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 046.010985    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Midwestern UniversityDowners Grove, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Margaret Anna Wilczek among 2,697 optometrist records in Illinois

Margaret Anna Wilczek, O.D. is one of 2,697 optometrist records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 73% of them.

  • NPI issued2016 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2016 · median 2008 among the 1,513 with a school on file
  • Record last updated2018 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

71 optometrist records list a practice address in Downers Grove

They are 71 of the 1,899 NPPES records with a practice address in Downers Grove, and 2,697 optometrist records in Illinois.

All 2,697 in Illinois → Every provider in Downers Grove → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Glenn Afryl, O.D.Downers Grove, IL 605151447266929
  2. Michele Albanese, O.D.Downers Grove, IL 605151629149224
  3. Dianne Anderson, O.D.Downers Grove, IL 605151881766046
  4. Charles Faron, ODDowners Grove, IL 605151740265933
  5. Mark Jacquot, O.D.Downers Grove, IL 605151962562314
  6. Jeanie Lucy, ODDowners Grove, IL 605151578610465
  7. Michael Macek, ODDowners Grove, IL 605151376550061
  8. Patricia Moser, O.D.Downers Grove, IL 605151376603746

Common questions

What is Margaret Anna Wilczek, O.D.'s NPI number?

Margaret Anna Wilczek, O.D.'s National Provider Identifier (NPI) is 1831542273, issued on Jul 21, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Anna Wilczek, O.D. located?

The NPPES record lists a practice address at 3450 Lacey RD, Downers Grove, IL, 60515. Phone: (630) 743-4500. Providers update this record themselves, so call before visiting.

How can I verify Margaret Anna Wilczek, O.D.'s license?

NPPES lists Illinois license number 046.010985, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.