NPI age
6 years
Enumerated 2019-06-22
● Active
Type 1 · Individual
DR. Marissa Armstrong, DNP, FNP-C
Armstrong is 1 of 22 nurse practitioner providers in Post Falls and 1 of 658 in Idaho.
Primary specialty
Nurse Practitioner
Plus 3 subspecialties
Licensed in
ID, WA
2 states
Status
Active
No deactivations on record
Last NPPES update
2026-02-02
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 658 active nurse practitioner providers in Idaho.
NPI age
6 years
↓ 2 yr below median (8 yr)
State licenses
2 states
Top 83% — 16% of peers are multi-state
Subspecialties
1
In the 34% of peers with subspecialties
NPI lifetime · 2019 → 2026
2019-06Enumerated in NPPES
2019
2026
Where they practice
Practice location
750 N Syringa St Ste 100
Post Falls, ID 838545275
Mailing address
1593 E Polston Ave
Post Falls, ID 838545326
Additional practice locations
2 secondary locations on file with NPPES.
Location 2
7173 E Super 1 Loop Ste A
Athol, ID 838017109
Location 3
315 W Dalton Ave Ste A
Coeur D Alene, ID 838158600
Specialties
-
Nurse Practitioner Primary(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum...
-
Registered Nurse(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or...
Practice context
Part of a multi-provider practice. 18 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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