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

Janine Marie Ahrens, APNP

Individual provider Nurse Practitioner · NPI 1659390896

Janine Marie Ahrens, APNP is a Nurse Practitioner in Waukesha, Wisconsin. Qualified in 1999, 27 years ago. Practices with Nephrology Associates SC, an 8-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
27
Licensed in
WI
In the registry since
2006
Specialties on file
2

Practice location Address checks out

1260 Sentry Dr Ste 140
Waukesha, WI 53186-5990
Phone: (262) 524-1024
Fax: (262) 524-8767
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 1559 (WI)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 1559-33 (WI)

Record details

NPI number1659390896
Entity typeIndividual (Type 1)
GenderFemale
Credentials APNP
Sole proprietorNo
NPI enumeratedJuly 19, 2006
Last updated in NPPESFebruary 5, 2026
Certification dateFebruary 5, 2026

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Nephrology Associates Sc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Waukesha