NPPES file of Aug 9, 2026

Katherine Beerntsen, OD

Optometrist · Janesville, WI

Katherine Beerntsen, OD is an optometrist with a practice address in Janesville, Wisconsin, and NPI 1114082443, issued on Dec 27, 2006. Check the license (Wisconsin 2338, as entered in NPPES) with the Wisconsin board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1114082443
Name
Katherine Beerntsen
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
2338 WI
Self-reported in NPPES; status is on the state search
Practice location
2500 Milton Ave, Janesville, WI 53545
Phone
(608) 757-2633
Enumerated
Dec 27, 2006
Record last updated
Apr 3, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(608) 757-2625
Medicaid ID
38599500 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 2500 Milton Ave

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

  1. Mark GieseHearing Instrument Specialist1932353984

Verify Katherine Beerntsen 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 2338    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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Optometrist providers in Wisconsin

There are 1,161 optometrist records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,161 in Wisconsin → Every provider in Janesville →

Other optometrist records in Wisconsin

  1. Katie Abata, O.D.Appleton, WI1043646623
  2. Brianna Adams, ODStoughton, WI1093605222
  3. Gerald Adams, ODWestby, WI1760479182
  4. James AdamsPortage, WI1154007953
  5. Lawrence Addison, O.D.Weston, WI1760794697
  6. Farzana AkterWaupun, WI1346821725
  7. Margarette Elaine Alcesto, ODShorewood, WI1669984563
  8. Robert Alexejun, O.D.Wausau, WI1235275009
  9. Carmen Alfonso-Kneiert, ODFort Atkinson, WI1710938634
  10. Jennifer Alvarez, O.D.Brookfield, WI1316255805

Common questions

What is Katherine Beerntsen, OD's NPI number?

Katherine Beerntsen, OD's National Provider Identifier (NPI) is 1114082443, issued on Dec 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Beerntsen, OD located?

The NPPES record lists a practice address at 2500 Milton Ave, Janesville, WI, 53545. Phone: (608) 757-2633. Providers update this record themselves, so call before visiting.

How can I verify Katherine Beerntsen, OD's license?

NPPES lists Wisconsin license number 2338, as entered by the provider. Search the Wisconsin 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. 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.