Margaret Sonnemann, NP
NPI 1295048999 · Family Nurse Practitioner · Milwaukee, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Sonnemann, NP is a Family Nurse Practitioner provider in Milwaukee, WI (NPI 1295048999).
Provider details
- NPI number
- 1295048999
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 146249 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-07-22
- Last updated
- 2017-04-21
Frequently asked questions
- What is Margaret Sonnemann's NPI number?
- Margaret Sonnemann's National Provider Identifier (NPI) is 1295048999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Sonnemann's specialty?
- Margaret Sonnemann is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Sonnemann located?
- Margaret Sonnemann's practice location on file with NPPES is 10625 W North Ave, Milwaukee, WI 53226-2315.
- What is Margaret Sonnemann's phone number?
- The practice phone number listed in the NPPES registry for Margaret Sonnemann is (414) 877-5350.
- Does Margaret Sonnemann accept Medicare?
- Margaret Sonnemann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Sonnemann's NPI active?
- Yes — Margaret Sonnemann's NPI (1295048999) is active in the NPPES registry as of the last update on 2017-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.