Margaret A. Sonnemann, NP
Family Nurse Practitioner · Milwaukee, WI
Margaret A. Sonnemann, NP is a family nurse practitioner with a practice address in Milwaukee, Wisconsin, and NPI 1295048999, issued on Jul 22, 2010. Check the license (Wisconsin 146249, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret A. Sonnemann
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 146249 WI
Self-reported in NPPES; status is on the state search - Practice location
- 10625 W North Ave, Milwaukee, WI 53226
- Phone
- (414) 877-5350
- Enumerated
- Jul 22, 2010
- Record last updated
- Apr 21, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (414) 877-5360
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Margaret A. Sonnemann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
Search for license 146249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family nurse practitioner in 2024
34 Medicare Part D claims for 11 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 47% of 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.
Margaret A. Sonnemann among 2,814 family nurse practitioner records in Wisconsin
Margaret A. Sonnemann, 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 2010, is newer than 18% of them.
- NPI issued2010 · 18% of these records are older, 80% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2017 · 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).
458 family nurse practitioner records list a practice address in Milwaukee
They are 458 of the 18,389 NPPES records with a practice address in Milwaukee, and 2,814 family nurse practitioner records in Wisconsin.
All 2,814 in Wisconsin → Every provider in Milwaukee → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Susan Arnsdorf, APNMilwaukee, WI 532261083784656
- Cheryl Blaschuk, NPMilwaukee, WI 532261013961713
- James Bockeloh, DNP, APNPMilwaukee, WI 532261194787341
- Stephanie Christian-Lobley, NPMilwaukee, WI 532261265486567
- Eric Dellamater, APNPMilwaukee, WI 532261023176617
- Kathryn Koch, NPMilwaukee, WI 532261740231588
- Leanne Pahl-Jakab, R.N., A.P.N.P.Milwaukee, WI 532261558462002
- Barbara Plumb, R.N., A.P.N.P.Milwaukee, WI 532261104917889
Common questions
What is Margaret A. Sonnemann, NP's NPI number?
Margaret A. Sonnemann, NP's National Provider Identifier (NPI) is 1295048999, issued on Jul 22, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Margaret A. Sonnemann, NP located?
The NPPES record lists a practice address at 10625 W North Ave, Milwaukee, WI, 53226. Phone: (414) 877-5350. Providers update this record themselves, so call before visiting.
How can I verify Margaret A. Sonnemann, NP's license?
NPPES lists Wisconsin license number 146249, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.
How much does Margaret A. Sonnemann, NP prescribe under Medicare Part D?
In 2024, Margaret A. Sonnemann, NP had 34 Medicare Part D claims for 11 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.