Margot R. Walker, APRN, WHNP-BC
Nurse Practitioner · Janesville, WI
Margot R. Walker, APRN, WHNP-BC is a nurse practitioner with a practice address in Janesville, Wisconsin, and NPI 1548312028, issued on Jan 17, 2007. Check the license (Wisconsin 1847, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margot R. Walker
- Credential
- APRN, WHNP-BC
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 1847 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Mineral Point Ave, Janesville, WI 53548
- Phone
- (608) 756-6890
- Enumerated
- Jan 17, 2007
- Record last updated
- Sep 29, 2022
- Fax
- (608) 756-6164
- Medicaid IDs
- 43931700 WI
1548312028 WI - Medicare enrollment
- Enrolled (PECOS I20091210000298); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,995 in Wisconsin → Look up another NPI →
Also registered at 1000 Mineral Point Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margot R. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 1847Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average nurse practitioner in 2024
2,157 Medicare Part D claims for 591 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Tamsulosin Hcl435 claims
- Finasteride261 claims
- Estradiol239 claims
- Myrbetriq211 claims
- Solifenacin Succinate132 claims
- Oxybutynin Chloride Er104 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.
Industry payments in 2024: $20.62
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mercy Health System CorporationJanesville, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margot R. Walker among 3,995 nurse practitioner records in Wisconsin
Margot R. Walker, APRN, WHNP-BC 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 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 77% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2000 · median 2017 among the 2,701 with a school on file
- Record last updated2022 · 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).
43 nurse practitioner records list a practice address in Janesville
They are 43 of the 1,538 NPPES records with a practice address in Janesville, and 3,995 nurse practitioner records in Wisconsin.
All 3,995 in Wisconsin → Every provider in Janesville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Jennifer Bestland, RN, APNPJanesville, WI 535481801819701
- Kristine Bohrmueller, ARNPJanesville, WI 535481386945558
- Linda Brethauer, RN NPJanesville, WI 535481053328617
- Rachel Brueggen, APRNJanesville, WI 535481528675824
- Kelli Casper, ACNP, RNJanesville, WI 535481538260625
- Courtney Castelein, APRN, FNPJanesville, WI 535481932648771
- Nicole Disch, APRN, AGPCNP-BCJanesville, WI 535481760839062
- Tanya Haney, APNPJanesville, WI 535481114018926
Common questions
What is Margot R. Walker, APRN, WHNP-BC's NPI number?
Margot R. Walker, APRN, WHNP-BC's National Provider Identifier (NPI) is 1548312028, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margot R. Walker, APRN, WHNP-BC located?
The NPPES record lists a practice address at 1000 Mineral Point Ave, Janesville, WI, 53548. Phone: (608) 756-6890. Providers update this record themselves, so call before visiting.
How can I verify Margot R. Walker, APRN, WHNP-BC's license?
NPPES lists Wisconsin license number 1847, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Margot R. Walker, APRN, WHNP-BC prescribe under Medicare Part D?
In 2024, Margot R. Walker, APRN, WHNP-BC had 2,157 Medicare Part D claims for 591 beneficiaries; 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.