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

Karen Wyse Niedermier, APRN, CNP

Individual provider Family Nurse Practitioner · NPI 1821058421

Karen Wyse Niedermier, APRN, CNP is a Nurse Practitioner in Superior, Wisconsin. Qualified in 1995, 31 years ago. Practices with Polinsky Medical Rehabilitation Center, a 380-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Alaska, Minnesota and Wisconsin.

Years since qualifying
31
Licensed in
AK, MN, WI
In the registry since
2006
Specialties on file
5
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

2202 E 2nd St Ste 377
Superior, WI 54880-3778
Phone: (715) 817-7990
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 400 E 3rd St, Duluth, MN 55805-1951 — (218) 786-8364

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 5989-33 (WI)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence CNP1825 (MN)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 128436-2 (WI)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 128436-2 (MN)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence AK940 (AK)

Record details

NPI number1821058421
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN , CNP
Sole proprietorNo
NPI enumeratedMarch 27, 2006
Last updated in NPPESOctober 30, 2018

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Polinsky Medical Rehabilitation Center — 380 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients118
Services billed 124 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Polinsky Medical Rehabilitation Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 380 clinicians in the practice; 12 are shown here.

Other providers in Superior