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

Mrs. Jennifer Sue Karns, FNP

Individual provider Registered Nurse · NPI 1205430410

Mrs. Jennifer Sue Karns, FNP is a Nurse Practitioner in Idaho Falls, Idaho. Qualified in 2014, 12 years ago. Practices with Elizabeth a Sharp-Marsden FNP PLLC, a 4-clinician group and accepts Medicare assignment. Licensed in Colorado, Idaho and Oregon.

Years since qualifying
12
Licensed in
CO, ID, OR
In the registry since
2020
Specialties on file
3
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

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Practice location Address checks out

2275 Channing Way
Idaho Falls, ID 83404-8012
Phone: (208) 900-3434
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 67228 (ID)
Registered Nurse Taxonomy 163W00000X · Licence 1628612 (CO)
Registered Nurse Taxonomy 163W00000X · Licence 201506784 (OR)

Record details

NPI number1205430410
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorYes
NPI enumeratedNovember 28, 2020
Last updated in NPPESMarch 6, 2023
Certification dateMarch 6, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Elizabeth A Sharp-Marsden Fnp Pllc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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