Alexandra Diersen, FNP-C
NPI 1417836396 · Family Nurse Practitioner · Milwaukee, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexandra Diersen, FNP-C is a Family Nurse Practitioner provider in Milwaukee, WI (NPI 1417836396).
Provider details
- NPI number
- 1417836396
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 164167 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2025-08-27
- Last updated
- 2025-11-13
- Certified
- 2025-11-13
Frequently asked questions
- What is Alexandra Diersen's NPI number?
- Alexandra Diersen's National Provider Identifier (NPI) is 1417836396, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Diersen's specialty?
- Alexandra Diersen is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexandra Diersen located?
- Alexandra Diersen's practice location on file with NPPES is 2400 W Villard Ave, Milwaukee, WI 53209-4901.
- What is Alexandra Diersen's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Diersen is (414) 527-8191.
- Does Alexandra Diersen accept Medicare?
- Alexandra Diersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexandra Diersen's NPI active?
- Yes — Alexandra Diersen's NPI (1417836396) is active in the NPPES registry as of the last update on 2025-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.