NPPES file of Aug 9, 2026

Corrie M. Kassler, FNP

Family Nurse Practitioner · Crandon, WI

Corrie M. Kassler, FNP is a family nurse practitioner with a practice address in Crandon, Wisconsin, and NPI 1063762482, issued on Sep 13, 2012. Check the license (Wisconsin 4976-33, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063762482
Name
Corrie M. Kassler
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
4976-33 WI
Self-reported in NPPES; status is on the state search
Practice location
400 W Glen St, Crandon, WI 54520
Phone
(715) 478-3318
Enumerated
Sep 13, 2012
Record last updated
Sep 13, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20121004000309); 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 400 W Glen St

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

  1. Kristin DahmsPhysician Assistant1205911831
  2. Tracy Ferraro-Schumacher, MSWClinical Social Worker1851262570
  3. Amy Kuebler, APNPFamily Nurse Practitioner1235121435
  4. Susan Moore, MDFamily Medicine Physician1578670089
  5. Rebecca Perry, MDInternal Medicine Physician1023004223

Verify Corrie M. Kassler 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 4976-33
    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
Find the Wisconsin license search

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3.8 times the Medicare Part D claims of the average family nurse practitioner in 2024

4,896 Medicare Part D claims for 329 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. 18 claims were for opioids.

  1. Corrie Kassler4,896
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium339 claims
  2. Lisinopril227 claims
  3. Amlodipine Besylate194 claims
  4. Omeprazole151 claims
  5. Levothyroxine Sodium126 claims
  6. Losartan Potassium126 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): 84.6 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 score89.8
  2. Costout of 100 · 30%58.7
  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 one group practice

  1. Aspirus Rhinelander And Tomahawk Hospitals And Clinics, Inc.Crandon, WI

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

6 family nurse practitioner records list a practice address in Crandon

They are 6 of the 79 NPPES records with a practice address in Crandon, and 2,814 family nurse practitioner records in Wisconsin.

Other family nurse practitioner records in Wisconsin

  1. Amanda Abaya, APNPAppleton, WI1053145193
  2. Monaliza Abdela, FNPBrookfield, WI1760288336
  3. Ayia AbdeljabbarOak Creek, WI1285386094
  4. Adetoun Abolurin, FNPOak Creek, WI1316411390
  5. Anne Abresch, NURSE PRACTITIONERMilwaukee, WI1578867479
  6. Sumar AbushaqraSheboygan, WI1023488475
  7. Lindsay AchesonMilwaukee, WI1457940264
  8. Tyler Adamczak, APNPChippewa Falls, WI1538031588
  9. Inez Adams, NPWest Allis, WI1255877544
  10. Samantha AdamsOshkosh, WI1467853622

Common questions

What is Corrie M. Kassler, FNP's NPI number?

Corrie M. Kassler, FNP's National Provider Identifier (NPI) is 1063762482, issued on Sep 13, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Corrie M. Kassler, FNP located?

The NPPES record lists a practice address at 400 W Glen St, Crandon, WI, 54520. Phone: (715) 478-3318. Providers update this record themselves, so call before visiting.

How can I verify Corrie M. Kassler, FNP's license?

NPPES lists Wisconsin license number 4976-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

How much does Corrie M. Kassler, FNP prescribe under Medicare Part D?

In 2024, Corrie M. Kassler, FNP had 4,896 Medicare Part D claims for 329 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Corrie M. Kassler, FNP's MIPS final score?

The 2023 MIPS final score is 84.6 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.