NPPES file of Aug 9, 2026

Carrie Ann Diehn

Family Nurse Practitioner · Nekoosa, WI

Carrie Ann Diehn is a family nurse practitioner with a practice address in Nekoosa, Wisconsin, and NPI 1881943710, issued on Sep 6, 2012. Check the license (Wisconsin 4922, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881943710
Name
Carrie Ann Diehn
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
4922 WI
Self-reported in NPPES; status is on the state search
Practice location
1160 Rome Center Dr, Nekoosa, WI 54457
Phone
(715) 325-8300
Enumerated
Sep 6, 2012
Record last updated
Sep 6, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20121226000367); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2012
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 1160 Rome Center Dr

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

  1. Judythe Bauer, RDHDental Hygienist1295987352
  2. Rhonda Capelle, RDHDental Hygienist1407059835
  3. Mary Ellen KlementDental Hygienist1053560136

Verify Carrie Ann Diehn 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 4922
    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 Wisconsin 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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3.9 times the Medicare Part D claims of the average family nurse practitioner in 2024

5,062 Medicare Part D claims for 451 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 46 claims were for opioids.

  1. Carrie Diehn5,062
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium440 claims
  2. Lisinopril246 claims
  3. Omeprazole232 claims
  4. Amlodipine Besylate211 claims
  5. Levothyroxine Sodium179 claims
  6. Losartan Potassium160 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 90.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score94.3
  2. Costout of 100 · 30%67.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Aspirus Medical Group, Inc.Weston, WI
  2. Aspirus Riverview Hospital And Clinics IncWisconsin Rapids, WI

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

Carrie Ann Diehn among 2,814 family nurse practitioner records in Wisconsin

Carrie Ann Diehn is one of 2,814 family nurse practitioner 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 2012, is newer than 23% of them.

  • NPI issued2012 · 23% of these records are older, 74% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2012 · median 2019 among the 1,740 with a school on file
  • Record last updated2012 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 family nurse practitioner record lists a practice address in Nekoosa

They are 1 of the 25 NPPES records with a practice address in Nekoosa, and 2,814 family nurse practitioner records in Wisconsin.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Heather Haun, RNNeillsville, WI 544561811297385
  2. Garett Krug, NPNeillsville, WI 544561689248247
  3. Sara Smith, DNPNeillsville, WI 544561093332108
  4. Rebecca Deffner, NPMosinee, WI 544551578819256
  5. Elizabeth FraazaKronenwetter, WI 544551740100445
  6. Rebecca Haskins, MSN-FNP-CMosinee, WI 544551982539839
  7. Sierra Krall, APNP, FNPKronenwetter, WI 544551679272454
  8. Jane Ziemanski, NPMosinee, WI 544551790873867

Common questions

What is Carrie Ann Diehn's NPI number?

Carrie Ann Diehn's National Provider Identifier (NPI) is 1881943710, issued on Sep 6, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Carrie Ann Diehn located?

The NPPES record lists a practice address at 1160 Rome Center Dr, Nekoosa, WI, 54457. Phone: (715) 325-8300. Providers update this record themselves, so call before visiting.

How can I verify Carrie Ann Diehn's license?

NPPES lists Wisconsin license number 4922, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Carrie Ann Diehn prescribe under Medicare Part D?

In 2024, Carrie Ann Diehn had 5,062 Medicare Part D claims for 451 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Carrie Ann Diehn's MIPS final score?

The 2023 MIPS final score is 90.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.