NPPES file of Aug 9, 2026

Erin Frueh, FNP

Nurse Practitioner · Grafton, WI

Erin Frueh, FNP is a nurse practitioner with a practice address in Grafton, Wisconsin, and NPI 1710641220, issued on Oct 30, 2021. Check the license (Wisconsin 11468-33, 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
1710641220
Name
Erin Frueh
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
11468-33 WI
Self-reported in NPPES; status is on the state search
Practice location
975 Port Washington RD, Grafton, WI 53024
Phone
(262) 329-8150
Enumerated
Oct 30, 2021
Record last updated
Nov 23, 2022
Fax
(262) 329-8151
Medicaid ID
100189963 WI
Medicare enrollment
Enrolled (PECOS I20220127002930); 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 975 Port Washington RD

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

  1. Hamid Afsari, D.O.Hospitalist Physician1053672048
  2. Muhammed Al-Fawakhiri, MDInternal Medicine Physician1942276613
  3. Beverly Altman, LMTMassage Therapist1447888789
  4. Claudia Altmann, MDInfectious Disease Physician1386691756
  5. Peter Andrew, AAAnesthesiologist Assistant1821704545
  6. Patrick AndrewsPhysical Therapist1689481962

Verify Erin Frueh 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 11468-33
    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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80% fewer Medicare Part D claims than the average nurse practitioner in 2024

224 Medicare Part D claims for 62 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Erin Frueh224
  2. Specialty average1,109

Most prescribed

  1. Clopidogrel31 claims
  2. Jardiance24 claims
  3. Metoprolol Succinate17 claims
  4. Brilinta15 claims
  5. Pantoprazole Sodium14 claims
  6. Rosuvastatin Calcium12 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.

Bills Medicare through one group practice

  1. Aurora Advanced Healthcare, Inc.Grafton, WI

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

50 nurse practitioner records list a practice address in Grafton

They are 50 of the 459 NPPES records with a practice address in Grafton, and 3,995 nurse practitioner records in Wisconsin.

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 Erin Frueh, FNP's NPI number?

Erin Frueh, FNP's National Provider Identifier (NPI) is 1710641220, issued on Oct 30, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Erin Frueh, FNP located?

The NPPES record lists a practice address at 975 Port Washington RD, Grafton, WI, 53024. Phone: (262) 329-8150. Providers update this record themselves, so call before visiting.

How can I verify Erin Frueh, FNP's license?

NPPES lists Wisconsin license number 11468-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Erin Frueh, FNP prescribe under Medicare Part D?

In 2024, Erin Frueh, FNP had 224 Medicare Part D claims for 62 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.

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.