Nancy McClellan, GNP
Gerontology Nurse Practitioner · Greenfield, WI
Nancy McClellan, GNP is a gerontology nurse practitioner with a practice address in Greenfield, Wisconsin, and NPI 1598761389, issued on Jun 26, 2005. Check the license (Wisconsin 91660-030, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nancy McClellan
- Credential
- GNP
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- 91660-030 WI
Self-reported in NPPES; status is on the state search - Practice location
- 5700 W Layton Ave, Greenfield, WI 53220
- Phone
- (414) 531-9518
- Enumerated
- Jun 26, 2005
- Record last updated
- Jul 13, 2026
- Medicaid ID
- 43864200 WI
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 146 in Wisconsin → Look up another NPI →
Also registered at 5700 W Layton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Justine Faraone, PTASpecialist1063675072
- McKenzie Fauth, DPTPhysical Therapist1003254855
- Barbara Foster, OTROccupational Therapist1225265358
Verify Nancy McClellan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 91660-030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024
12 Medicare Part D claims, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Potassium Chloride12 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.
Nancy McClellan among 146 gerontology nurse practitioner records in Wisconsin
Nancy McClellan, GNP is one of 146 gerontology 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2026 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gerontology Nurse Practitioner providers in Wisconsin
There are 146 gerontology nurse practitioner records in Wisconsin.
All 146 in Wisconsin → Every provider in Greenfield → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Shelley ForbusGreenfield, WI 532201962356980
- Sarah Shahwan, APNPMilwaukee, WI 532211033064522
- Kyungsook Yoon, AGPCNP-BC, APNPMilwaukee, WI 532221083000160
- Mary Eichelberger, APRN, BCMilwaukee, WI 532231063586329
- Gail Harvancik, GNPMilwaukee, WI 532161245320571
- Freddie Mertzig, APNPMilwaukee, WI 532151922523836
- Laura Bochenczak, APNPMilwaukee, WI 532261407394786
- Gloria Dohearty, GNPMilwaukee, WI 532261417047747
Common questions
What is Nancy McClellan, GNP's NPI number?
Nancy McClellan, GNP's National Provider Identifier (NPI) is 1598761389, issued on Jun 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nancy McClellan, GNP located?
The NPPES record lists a practice address at 5700 W Layton Ave, Greenfield, WI, 53220. Phone: (414) 531-9518. Providers update this record themselves, so call before visiting.
How can I verify Nancy McClellan, GNP's license?
NPPES lists Wisconsin license number 91660-030, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Nancy McClellan, GNP prescribe under Medicare Part D?
In 2024, Nancy McClellan, GNP had 12 Medicare Part D claims; the average among gerontology nurse practitioner prescribers was 1,369. 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.