Marissa Armstrong, DNP, FNP-C
Individual provider Active NPI Nurse Practitioner · Post Falls, ID
NPI 1609437508 · NPPES record last updated Feb 2, 2026
Key facts
- NPI
- 1609437508
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Nurse Practitioner 363L00000X
- License
- 62266 (ID)
- Practice address
- 750 N Syringa St Ste 100
Post Falls, ID 83854-5275 - Phone
- (208) 262-2600
- Fax
- (208) 262-2700
- NPI assigned
- Jun 22, 2019
- Sex
- Female
- Sole proprietor
- No
Organizations & group practices 27
Hospital & facility affiliations 4
Medicare Care Compare profile
- Specialty
- Nurse Practitioner
- Education
- Other, 2019
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Community Health Association of Spokane
North Idaho Day Surgery LLC
Practice addresses (Care Compare)
1502 N Vercler Rd
Spokane Valley, WA 99216-1078
Phone (509) 444-8204
750 N Syringa St
Suite 100
Post Falls, ID 83854-5275
Phone (208) 262-2600
Hospital & facility affiliations
- Northwest Specialty Hospital
- Kootenai Health
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled (2 enrollments) in WA, ID
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: No
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20200113000587 | WA | Practitioner - Nurse Practitioner | 1658706023 | Reassigns benefits to 1 organization |
| I20260129003870 | ID | Practitioner - Nurse Practitioner | 1658706023 | Reassigns benefits to 1 organization |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 43344 | ID | MD | Registered Nurse |
| RN60978158 | WA | MD | Registered Nurse |
| 62266 | ID | MD | Nurse Practitioner |
| AP60978160 | WA | MD | Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| North Idaho Day Surgery LLC | Current |
Accepting new patients | |
| Community Health Association of Spokane | Current |
Accepting new patients | |
| Community Health Association of Spokane | Current |
Accepting new patients | |
| Community Health Association of Spokane | Current | Accepting new patients | |
| North Idaho Day Surgery LLC | Past | Accepting new patients |
Locations
7173 E Super 1 Loop
Ste A
Athol, ID 83801
Phone (208) 561-9970
315 W Dalton Ave
Ste A
Coeur D Alene, ID 83815
Phone (208) 209-2060
750 N Syringa St
Ste 100
Post Falls, ID 83854
Phone (208) 262-2600
1593 E Polston Ave
Post Falls, ID 83854
Phone (208) 262-2300
203 N Washington St
Ste 300
Spokane, WA 99201
5901 N Lidgerwood St
Ste 126
Spokane, WA 99208
Phone (509) 434-1990
611 N Iron Bridge Way
Spokane, WA 99202
1001 W 2nd Ave
Spokane, WA 99201
Phone (509) 835-1205
1502 N Vercler Rd
Spokane Valley, WA 99216
Phone (509) 444-8204
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nurse Practitioner | 363L00000X | AP60978160 | WA | |
| Registered Nurse | 163W00000X | 43344 | ID | |
| Nurse Practitioner | 363L00000X | 62266 | ID | Yes |
| Registered Nurse | 163W00000X | RN60978158 | WA |
Addresses
Primary practice location
750 N Syringa St Ste 100
Post Falls, ID 83854-5275
Mailing address
1593 E Polston Ave
Post Falls, ID 83854-5326
Phone (208) 262-2300
Other practice location 1
7173 E Super 1 Loop Ste A
Athol, ID 83801-7109
Phone (208) 561-9970
Other practice location 2
315 W Dalton Ave Ste A
Coeur D Alene, ID 83815-8600
Phone (208) 209-2060
Other providers in Post Falls, ID
- Angela Macdonald-Hertz LLC
- Kelly Anthony
- Maryann Anthony
- Jennifer Lynn Arena
- Arketype Health Post Falls LLC
- Russel Michael Arnold
- Christina Ascencio
- Michelle Astle
- At Home Physical Therapy PC
- Atlas Aligned Chiropractic PLLC
All providers in Post Falls, ID · Nurse Practitioner in Idaho
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Feb 2, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.