Karen Gastrau, APNP
NPI 1750335204 · Nurse Practitioner · Milwaukee, WI
Karen Gastrau, APNP is a Nurse Practitioner provider in Milwaukee, WI (NPI 1750335204).
Provider details
- NPI number
- 1750335204
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- No
- License
- 940 (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
20 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
- 2006-05-20
- Last updated
- 2021-11-19
- Certified
- 2021-11-19
Frequently asked questions
- What is Karen Gastrau's NPI number?
- Karen Gastrau's National Provider Identifier (NPI) is 1750335204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Gastrau's specialty?
- Karen Gastrau is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Gastrau located?
- Karen Gastrau's practice location on file with NPPES is 5928 W Vliet St, Milwaukee, WI 53208-2165.
- What is Karen Gastrau's phone number?
- The practice phone number listed in the NPPES registry for Karen Gastrau is (414) 771-0212.
- Is Karen Gastrau's NPI active?
- Yes — Karen Gastrau's NPI (1750335204) is active in the NPPES registry as of the last update on 2021-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.