NPPES file of Aug 9, 2026

William Pawlak, O. D.

Optometrist · Belvidere, IL

William Pawlak, O. D. is an optometrist with a practice address in Belvidere, Illinois, and NPI 1518936715, issued on Mar 17, 2006. Check the license (Illinois 046-009055, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518936715
Name
William Pawlak
Credential
O. D.
Primary taxonomy
Optometrist 152W00000X
License number
046-009055 IL
Self-reported in NPPES; status is on the state search
Practice location
2101 Gateway Center Dr, Belvidere, IL 61008
Phone
(815) 547-5950
Enumerated
Mar 17, 2006
Record last updated
Aug 30, 2022
Fax
(815) 547-7057
Medicare enrollment
Enrolled (PECOS I20060601000062); accepts Medicare assignment
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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Also registered at 2101 Gateway Center Dr

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

  1. Whitney Bennett, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1326644162
  2. Elizabeth Perez, RPHPharmacist1396346888
  3. Sook Jin YuPharmacist1275134736

Verify William Pawlak 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 046-009055
    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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96% fewer Medicare Part D claims than the average optometrist in 2024

11 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. William Pawlak11
  2. Specialty average277

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

William Pawlak among 2,697 optometrist records in Illinois

William Pawlak, 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 63% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated1997 · median 2008 among the 1,513 with a school on file
  • Record last updated2022 · 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).

2 optometrist records list a practice address in Belvidere

They are 2 of the 194 NPPES records with a practice address in Belvidere, and 2,697 optometrist records in Illinois.

The 8 optometrist records with the nearest ZIP codes

  1. Norbert Kulpinski, ODBelvidere, IL 610081245227602
  2. Kush PatelByron, IL 610101659195436
  3. Susan Penner, ODByron, IL 610101891842464
  4. Thomas Bialecke, ODDixon, IL 610211164539821
  5. Kelly Klein, O.D.Dixon, IL 610211376775262
  6. Carrie Menet, O.D.Dixon, IL 610211821323585
  7. Kurt Nelson, O.D.Dixon, IL 610211285792093
  8. Peter Popovich, O.D.Dixon, IL 610211649629072

Common questions

What is William Pawlak, O. D.'s NPI number?

William Pawlak, O. D.'s National Provider Identifier (NPI) is 1518936715, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Pawlak, O. D. located?

The NPPES record lists a practice address at 2101 Gateway Center Dr, Belvidere, IL, 61008. Phone: (815) 547-5950. Providers update this record themselves, so call before visiting.

How can I verify William Pawlak, O. D.'s license?

NPPES lists Illinois license number 046-009055, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does William Pawlak, O. D. prescribe under Medicare Part D?

In 2024, William Pawlak, O. D. had 11 Medicare Part D claims; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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.

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.