NPPES file of Aug 9, 2026

Stuart A. Kosikowski, OD

Optometrist · Fond Du Lac, WI

Stuart A. Kosikowski, OD is an optometrist with a practice address in Fond Du Lac, Wisconsin, and NPI 1831170141, issued on Nov 14, 2005. Check the license (Wisconsin 2012, as entered in NPPES) with the Wisconsin 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
1831170141
Name
Stuart A. Kosikowski
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
2012 WI
Self-reported in NPPES; status is on the state search
Practice location
421 Camelot Dr, Fond Du Lac, WI 54935
Phone
(920) 926-8472
Enumerated
Nov 14, 2005
Record last updated
Nov 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
38525900 WI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 421 Camelot Dr

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

  1. Deborah Anderson, PT CEESPhysical Therapist1649213877
  2. Nicole Auxier, MA CCC-AAudiologist1174514889
  3. Krista Behling, DPTPhysical Therapist1689075590
  4. Elizabeth Bensen, M.D.Physical Medicine & Rehabilitation Physician1366433435
  5. Robert Bertram, DPMFoot & Ankle Surgery Podiatrist1578908042
  6. Ashley Beyer, LATAthletic Trainer1306379433

Verify Stuart A. Kosikowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 2012
    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
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63% fewer Medicare Part D claims than the average optometrist in 2024

102 Medicare Part D claims for 34 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.

  1. Stuart Kosikowski102
  2. Specialty average277

Most prescribed

  1. Latanoprost44 claims
  2. Timolol Maleate12 claims
  3. Brimonidine Tartrate11 claims

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.

Stuart A. Kosikowski among 1,161 optometrist records in Wisconsin

Stuart A. Kosikowski, OD is one of 1,161 optometrist records with a practice address in Wisconsin. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2020 · 62% 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 Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 optometrist records list a practice address in Fond Du Lac

They are 19 of the 1,312 NPPES records with a practice address in Fond Du Lac, and 1,161 optometrist records in Wisconsin.

The 8 optometrist records with the nearest ZIP codes

  1. Nicole Amidon, O.D.Fond Du Lac, WI 549351992762835
  2. George Boling, O.D.Fond Du Lac, WI 549351639241508
  3. Pamela Brown, ODFond Du Lac, WI 549351578554234
  4. Tristan Brown, ODFond Du Lac, WI 549351477083608
  5. J Conran, O.D.Fond Du Lac, WI 549351790798189
  6. Julie Henry, ODFond Du Lac, WI 549351295842805
  7. Jessica Kulick, O.D.Fond Du Lac, WI 549351295186690
  8. Carin Lacount, ODFond Du Lac, WI 549351518919596

Common questions

What is Stuart A. Kosikowski, OD's NPI number?

Stuart A. Kosikowski, OD's National Provider Identifier (NPI) is 1831170141, issued on Nov 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stuart A. Kosikowski, OD located?

The NPPES record lists a practice address at 421 Camelot Dr, Fond Du Lac, WI, 54935. Phone: (920) 926-8472. Providers update this record themselves, so call before visiting.

How can I verify Stuart A. Kosikowski, OD's license?

NPPES lists Wisconsin license number 2012, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Stuart A. Kosikowski, OD prescribe under Medicare Part D?

In 2024, Stuart A. Kosikowski, OD had 102 Medicare Part D claims for 34 beneficiaries; 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.