Clare Costello, FNP
NPI 1154115459 · Family Nurse Practitioner · Milwaukee, WI
Clare Costello, FNP is a Family Nurse Practitioner provider in Milwaukee, WI (NPI 1154115459).
Provider details
- NPI number
- 1154115459
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sole proprietor
- No
- License
- C-APN.0103118-C-NP (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
1 yr 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
- 2025-04-09
- Last updated
- 2025-12-22
- Certified
- 2025-12-22
Frequently asked questions
- What is Clare Costello's NPI number?
- Clare Costello's National Provider Identifier (NPI) is 1154115459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clare Costello's specialty?
- Clare Costello is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Clare Costello located?
- Clare Costello's practice location on file with NPPES is 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874.
- What is Clare Costello's phone number?
- The practice phone number listed in the NPPES registry for Clare Costello is (414) 266-2000.
- Is Clare Costello's NPI active?
- Yes — Clare Costello's NPI (1154115459) is active in the NPPES registry as of the last update on 2025-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.