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Active NPI 1609437508 Individual Practitioner Female Practitioner

Dr. Marissa Armstrong , DNP, FNP-C

Nurse Practitioner • Post Falls, ID

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Marissa Armstrong, DNP, FNP-C is a certified Nurse Practitioner practicing in Post Falls, ID. With approximately 7 years of clinical experience since completing medical education in 2019, Dr. Armstrong delivers high-quality medical care to the local community at 750 N SYRINGA ST STE 100.

Dr. Armstrong maintains professional affiliations with North Idaho Day Surgery Llc, Community Health Association Of Spokane and accepts Medicare assignment.

Frequently performed procedures and clinical services include automated urinalysis test. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

750 N Syringa St Ste 100

Post Falls, ID 838545275

Telephone 2082622600
Fax 2082622700
Associated Practice Facility / Clinic
🏢 North Idaho Day Surgery Llc Facility NPI 1104824739

Medicare Profile & Education

Medical School

Other

Graduation Year

2019

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Nurse Practitioner in Post Falls, ID

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
7 Yrs -9.6 yrs vs City Avg
City Avg: 16.6 Yrs
State Avg: 9.9 Yrs
Regional Practice Density
21 Specialists

Practicing in Post Falls, ID (602 Statewide)

Telehealth Adoption Rate
19.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
86.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Armstrong (7 Years) 7 Yrs
Post Falls Specialty Average (16.6 Years) 16.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
81003 Automated urinalysis test
13 12 $16.38 $2.20

Medical Specialties & State Licenses

CMS Verified: 2026-02-02
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

State License ID 62266

(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 or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner

NUCC Taxonomy Code: 363L00000X

State License WA AP60978160

(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 or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Registered Nurse

NUCC Taxonomy Code: 163W00000X

State License ID 43344

(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 a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

Registered Nurse

NUCC Taxonomy Code: 163W00000X

State License WA RN60978158

(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 a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

Hospital & Practice Group Affiliations

North Idaho Day Surgery Llc

750 N Syringa St, Post Falls, ID 838545275

Phone: 2082622600

Community Health Association Of Spokane

1502 N Vercler Rd, Spokane Valley, WA 992161078

Phone: 5094448204

Secondary Practice Locations

315 W Dalton Ave Ste A

Coeur D Alene, ID 838158600

Phone: 2082092060

7173 E Super 1 Loop Ste A

Athol, ID 838017109

Phone: 2085619970

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

12 Associated Practitioners
Dr. Scott Kindler , DO

Family Medicine

NPI 1013942127

Doctor of Osteopathic Medicine (D.O.)

Dr. Anthony Russo , MD

Emergency Medicine

NPI 1144213455

Doctor of Medicine (M.D.)

David Laisy , PA

Physician Assistant

NPI 1225128838

Physician Assistant

Hollys Nielsen , FNP

Nurse Practitioner

NPI 1245393131

Family Nurse Practitioner

Dr. John Swanson , MD

Emergency Medicine

NPI 1255459558

Doctor of Medicine (M.D.)

Nathaniel Van Valin , PA

Physician Assistant - Medical

NPI 1386821759

Physician Assistant

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

13 Historical Events
📍
Updated Practice Location February 02, 2026

Registered at 750 N SYRINGA ST STE 100, POST FALLS, ID 838545275 (Tel: 2082622600)

📍
Updated Business Mailing Address February 02, 2026

Registered at 1593 E POLSTON AVE, POST FALLS, ID 838545326 (Tel: 2082622300)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 02, 2026

Nurse Practitioner (License #AP60978160 in WA)

📍
Updated Business Mailing Address February 04, 2022

Registered at 611 N IRON BRIDGE WAY, SPOKANE, WA 992024932 (Tel: 5094448888)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 04, 2022

Registered Nurse (License #N-43344 in ID)

📍
Updated Business Mailing Address August 06, 2019

Registered at 203 N WASHINGTON ST STE 300, SPOKANE, WA 992010254 (Tel: 5094448888)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 06, 2019

Registered Nurse (License #RN60978158 in WA)

NPI Profile Active June 22, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location June 22, 2019

Registered at 1502 N VERCLER RD, SPOKANE VALLEY, WA 992161078 (Tel: 5094448204)

📍
Updated Business Mailing Address June 22, 2019

Registered at 18801 W REBEL RD, HAUSER, ID 838545650 (Tel: 2089460444)

👤
Provider Name / Credentials Updated June 22, 2019

Recorded as MARISSA ARMSTRONG, DNP, FNP-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 22, 2019

Registered Nurse (License #N-43344 in ID)

🟢
Initial NPI Registration & Enumeration June 22, 2019

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1609437508
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 22, 2019
Last Update: February 02, 2026
Sole Proprietor: No

Mailing Address

1593 E Polston Ave

Post Falls, ID 838545326

Phone: 2082622300

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.