Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Alexandra Diersen, FNP-C

Individual provider Registered Nurse · NPI 1417836396

Alexandra Diersen, FNP-C is a Nurse Practitioner in Milwaukee, Wisconsin. Qualified in 2024, 2 years ago. Practices with Ascension Medical Group-Southeast Wisconsin Inc, a 555-clinician group and accepts Medicare assignment. Licensed in Iowa and Wisconsin.

Years since qualifying
2
Licensed in
IA, WI
In the registry since
2025
Specialties on file
2
What do these letters mean?
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

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Practice location Address checks out

2400 W Villard Ave
Milwaukee, WI 53209-4901
Phone: (414) 527-8191
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 17382-33 (WI)
Registered Nurse Taxonomy 163W00000X · Licence 164167 (IA)

Record details

NPI number1417836396
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-C
Sole proprietorNo
NPI enumeratedAugust 27, 2025
Last updated in NPPESNovember 13, 2025
Certification dateNovember 13, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2024 (2 years in practice)
Group practice Ascension Medical Group-Southeast Wisconsin Inc — 555 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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