NPPES file of Aug 9, 2026

Kathleen A. Grochowski, APNP

Nurse Practitioner · Fond Du Lac, WI

Kathleen A. Grochowski, APNP is a nurse practitioner with a practice address in Fond Du Lac, Wisconsin, and NPI 1568602530, issued on Mar 3, 2009. Check the license (Wisconsin 3671, 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
1568602530
Name
Kathleen A. Grochowski
Credential
APNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
3671 WI
3671-033 WI
Self-reported in NPPES; status is on the state search
Practice location
420 E Division St, Fond Du Lac, WI 54935
Phone
(920) 926-5666
Enumerated
Mar 3, 2009
Record last updated
Nov 29, 2022
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 420 E Division St

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

  1. Elizabeth Berenz, FNP-BCFamily Nurse Practitioner1619386885
  2. Melissa Berggren, PA-CPhysician Assistant1639377617
  3. Louann Biddick, NPNurse Practitioner1770566721
  4. Jennifer Bissell, MDFamily Medicine Physician1316146962
  5. Tiffany Boelk, APNPNurse Practitioner1700459690
  6. David Bowman, M.D.Cardiovascular Disease Physician1962492397

Verify Kathleen A. Grochowski 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 3671    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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28% more Medicare Part D claims than the average nurse practitioner in 2024

1,417 Medicare Part D claims for 168 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 76 claims were for opioids.

  1. Kathleen Grochowski1,417
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium76 claims
  2. Metoprolol Succinate64 claims
  3. Omeprazole54 claims
  4. Pantoprazole Sodium52 claims
  5. Potassium Chloride49 claims
  6. Furosemide45 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.

Industry payments in 2024: $104.16

1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathleen Grochowski$104.16
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

60 nurse practitioner records list a practice address in Fond Du Lac

They are 60 of the 1,312 NPPES records with a practice address in Fond Du Lac, and 3,995 nurse practitioner records in Wisconsin.

All 60 in Fond Du Lac → All 3,995 in Wisconsin → Every provider in Fond Du Lac →

Other nurse practitioner records in Wisconsin

  1. Caroline Aaberg, APNPMadison, WI1881384394
  2. Joyce Abbott, APNPOshkosh, WI1003824665
  3. Mohamed Abdelazim, APNPAppleton, WI1760266696
  4. Jacklyn Abel, AGACNP-BCMauston, WI1104631506
  5. Henrietta Abili, APNPGermantown, WI1174859524
  6. Jade Abts, NPGreen Bay, WI1992293708
  7. Karalyn Adam, DNP, RNMarshfield, WI1780933051
  8. Carol Adamczyk, MSNWauwatosa, WI1457502395
  9. Amanda Adams, NPMadison, WI1023366598
  10. Bernadette Adams, FNPWestby, WI1427047620

Common questions

What is Kathleen A. Grochowski, APNP's NPI number?

Kathleen A. Grochowski, APNP's National Provider Identifier (NPI) is 1568602530, issued on Mar 3, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen A. Grochowski, APNP located?

The NPPES record lists a practice address at 420 E Division St, Fond Du Lac, WI, 54935. Phone: (920) 926-5666. Providers update this record themselves, so call before visiting.

How can I verify Kathleen A. Grochowski, APNP's license?

NPPES lists Wisconsin license number 3671, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Kathleen A. Grochowski, APNP prescribe under Medicare Part D?

In 2024, Kathleen A. Grochowski, APNP had 1,417 Medicare Part D claims for 168 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.

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.