Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Karen Nelson, APN-CRNA

Individual provider Nurse Practitioner · NPI 1629085915

MS. Karen Nelson, APN-CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Arlington Heights, Illinois. Qualified in 1999, 27 years ago. Practices with Endeavor Health Medical Group, a 3,348-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
27
Licensed in
IL
In the registry since
2006
Specialties on file
3
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Practice location Address checks out

800 W Central Rd
Arlington Heights, IL 60005-2349
Phone: (847) 618-7140
Fax: (847) 618-0228
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1501 S California Ave, Chicago, IL 60608-1732 — (773) 257-6850

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 209002714 (IL)
Nurse Practitioner Taxonomy 363L00000X · Licence 209002714 (IL)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 041-264217 (IL)

Record details

NPI number1629085915
Entity typeIndividual (Type 1)
GenderFemale
Credentials APN-CRNA
Sole proprietorNo
NPI enumeratedAugust 1, 2006
Last updated in NPPESApril 23, 2025
Certification dateApril 23, 2025

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Endeavor Health Medical Group — 3348 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients114
Services billed 115 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Colleagues at Endeavor Health Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3348 clinicians in the practice; 12 are shown here.

Other providers in Arlington Heights