Mary Kosterman, NP
NPI 1386408599 · Family Nurse Practitioner · South Milwaukee, WI
Mary Kosterman, NP is a Family Nurse Practitioner provider in South Milwaukee, WI (NPI 1386408599).
Provider details
- NPI number
- 1386408599
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 5366-33 (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
2 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
- 2024-02-08
- Last updated
- 2024-02-08
- Certified
- 2024-02-08
Frequently asked questions
- What is Mary Kosterman's NPI number?
- Mary Kosterman's National Provider Identifier (NPI) is 1386408599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kosterman's specialty?
- Mary Kosterman is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Kosterman located?
- Mary Kosterman's practice location on file with NPPES is 2424 15th Ave, South Milwaukee, WI 53172-2410.
- What is Mary Kosterman's phone number?
- The practice phone number listed in the NPPES registry for Mary Kosterman is (414) 768-8055.
- Is Mary Kosterman's NPI active?
- Yes — Mary Kosterman's NPI (1386408599) is active in the NPPES registry as of the last update on 2024-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.