Rachel L. Guenther, NP
Family Nurse Practitioner · Jefferson, WI
Rachel L. Guenther, NP is a family nurse practitioner with a practice address in Jefferson, Wisconsin, and NPI 1346751120, issued on Oct 19, 2017. Check the license (Wisconsin 7983-33, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rachel L. Guenther
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 7983-33 WI
Self-reported in NPPES; status is on the state search - Practice location
- 840 W Racine St, Jefferson, WI 53549
- Phone
- (920) 674-6000
- Enumerated
- Oct 19, 2017
- Record last updated
- Oct 7, 2022
- Medicare enrollment
- Enrolled (PECOS I20171130002495); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →
Also registered at 840 W Racine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Eichinger, DNPFamily Nurse Practitioner1265279277
- Emily GovinPhysician Assistant1851121842
- Allison Klimesh, MDFamily Medicine Physician1619619426
- Cheryl Kolkovich, PA-CPhysician Assistant1326045485
- Noreen Lyons, APNPNurse Practitioner1255355368
- David Rutledge, MDFamily Medicine Physician1235155334
Verify Rachel L. Guenther in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 7983-33Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average family nurse practitioner in 2024
706 Medicare Part D claims for 105 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium76 claims
- Omeprazole36 claims
- Lisinopril34 claims
- Simvastatin24 claims
- Levothyroxine Sodium23 claims
- Alendronate Sodium21 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
- Prohealth Medical Group IncBrookfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rachel L. Guenther among 2,814 family nurse practitioner records in Wisconsin
Rachel L. Guenther, NP 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 2017, is newer than 43% of them.
- NPI issued2017 · 43% of these records are older, 53% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2019 among the 1,740 with a school on file
- Record last updated2022 · 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).
5 family nurse practitioner records list a practice address in Jefferson
They are 5 of the 227 NPPES records with a practice address in Jefferson, and 2,814 family nurse practitioner records in Wisconsin.
All 2,814 in Wisconsin → Every provider in Jefferson → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Barbara Bock, FNPJefferson, WI 535491265754907
- Samantha Eichinger, DNPJefferson, WI 535491265279277
- Gretchen Geist, MSN, APNP, FNP-BCJefferson, WI 535491194111658
- Sarah Stewart, APNPJefferson, WI 535491770238255
- Katlin Cheatham, APRNJanesville, WI 535481336851294
- Jessica Green, APNPJanesville, WI 535481124537774
- Maria Kostantacos, APRN, FNPJanesville, WI 535481538493614
- Julie Martin, APRN, FNPJanesville, WI 535481770030561
Common questions
What is Rachel L. Guenther, NP's NPI number?
Rachel L. Guenther, NP's National Provider Identifier (NPI) is 1346751120, issued on Oct 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Rachel L. Guenther, NP located?
The NPPES record lists a practice address at 840 W Racine St, Jefferson, WI, 53549. Phone: (920) 674-6000. Providers update this record themselves, so call before visiting.
How can I verify Rachel L. Guenther, NP's license?
NPPES lists Wisconsin license number 7983-33, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Rachel L. Guenther, NP prescribe under Medicare Part D?
In 2024, Rachel L. Guenther, NP had 706 Medicare Part D claims for 105 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.