Cynthia A. Liethen, APNP
Nurse Practitioner · Fond Du Lac, WI
Cynthia A. Liethen, APNP is a nurse practitioner with a practice address in Fond Du Lac, Wisconsin, and NPI 1932459492, issued on Sep 12, 2012. Check the license (Wisconsin 4960, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cynthia A. Liethen
- Credential
- APNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 4960 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
- Sep 12, 2012
- Record last updated
- Dec 31, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 420 E Division St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Cynthia A. Liethen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 4960Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nurse practitioner in 2024
24 Medicare Part D claims, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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.
Cynthia A. Liethen among 3,995 nurse practitioner records in Wisconsin
Cynthia A. Liethen, APNP is one of 3,995 nurse practitioner records with a practice address in Wisconsin. 77% 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 35% of them.
- NPI issued2012 · 35% of these records are older, 61% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2020 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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 3,995 in Wisconsin → Every provider in Fond Du Lac → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Louann Biddick, NPFond Du Lac, WI 549351770566721
- Monica Braun, NPFond Du Lac, WI 549351720339997
- Aleshia Cole, NPFond Du Lac, WI 549351417397126
- Kathleen Grochowski, APNPFond Du Lac, WI 549351568602530
- Sarah Guse, NPFond Du Lac, WI 549351417147786
- Barbara Guy, AP, NPFond Du Lac, WI 549351295817625
- Jessica Harding, NPFond Du Lac, WI 549351588951792
- Mary Kelm, NPFond Du Lac, WI 549351003802331
Common questions
What is Cynthia A. Liethen, APNP's NPI number?
Cynthia A. Liethen, APNP's National Provider Identifier (NPI) is 1932459492, issued on Sep 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia A. Liethen, 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 Cynthia A. Liethen, APNP's license?
NPPES lists Wisconsin license number 4960, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Cynthia A. Liethen, APNP prescribe under Medicare Part D?
In 2024, Cynthia A. Liethen, APNP had 24 Medicare Part D claims; 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.