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

Rette Marie Riley Olsen, DNP, APRN, FNP-C

Individual provider Primary Care Nurse Practitioner · NPI 1013623453

Rette Marie Riley Olsen, DNP, APRN, FNP-C is a Nurse Practitioner in Great Falls, Montana. Qualified in 2024, 2 years ago. Practices with Benefis Hospitals Inc, a 398-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
2
Licensed in
MT
In the registry since
2023
Specialties on file
2
What do these letters mean?
DNP — Doctor of Nursing Practice
The highest clinical degree in nursing.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.
FNP-C — Family Nurse Practitioner, Certified
A family nurse practitioner certified by the AANP.

See every abbreviation used in this directory →

Practice location Address checks out

1401 25th St S
Great Falls, MT 59405-5183
Phone: (406) 731-8888
Fax: (406) 731-8318
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 241721 (MT)
Primary Care Nurse Practitioner Taxonomy 363LP2300X · Licence NUR-APRN-LIC-241721 (MT)

Record details

NPI number1013623453
Entity typeIndividual (Type 1)
GenderFemale
Credentials DNP , APRN , FNP-C
Sole proprietorNo
NPI enumeratedJanuary 30, 2023
Last updated in NPPESJanuary 7, 2026
Certification dateJanuary 7, 2026

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 Benefis Hospitals Inc — 398 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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