Rhiannon A. Armstrong, ARNP
Psychiatric/Mental Health Nurse Practitioner · Spokane, WA
Rhiannon A. Armstrong, ARNP is a psychiatric/mental health nurse practitioner with a practice address in Spokane, Washington, and NPI 1366090110, issued on Aug 26, 2019. Check the license (Washington AP61004461, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Rhiannon A. Armstrong
- Credential
- ARNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- AP61004461 WA
RN60426571 WA
Self-reported in NPPES; status is on the state search - Practice location
- 316 W Boone Ave Ste 656, Spokane, WA 99201
- Phone
- (509) 872-5009
- Enumerated
- Aug 26, 2019
- Record last updated
- Aug 1, 2025
- Fax
- (509) 593-4676
- Entity
- Type 1 · individual
Also registered at 316 W Boone Ave Ste 656
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samantha Frank, LMHC, MHP, CDPTMental Health Counselor1811466600
- Susan Gallagher, LMHCMental Health Counselor1811556681
- Caitlin HaltermanClinical Social Worker1891343687
- Christina Hernandez, M.EDMental Health Counselor1578985347
- Katrina KnizekMental Health Counselor1801451034
- Amber Nadreau, MSMental Health Counselor1487794509
Verify Rhiannon A. Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61004461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
184 Medicare Part D claims for 40 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Clonidine Hcl19 claims
- Hydroxyzine Pamoate16 claims
- Trazodone Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $97.27
1 payment: food and beverage; the largest payer was Neuronetics, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
154 psychiatric/mental health nurse practitioner records list a practice address in Spokane
They are 154 of the 14,049 NPPES records with a practice address in Spokane, and 1,875 psychiatric/mental health nurse practitioner records in Washington.
All 154 in Spokane → All 1,875 in Washington → Every provider in Spokane →
Other psychiatric/mental health nurse practitioner records in Washington
- Peimaneh AbdolhosseiniEverett, WA1760246367
- Marissa Abrahams, PMHNP-BCSeattle, WA1528336021
- Rafael Achacoso, ARNPSeattle, WA1134835432
- Aishwarya AchanFederal Way, WA1346886462
- Margaret Ackerman, APNMount Vernon, WA1972723906
- Brenda Acosta, ARNP, PMHNP-BCYakima, WA1871369728
- Allison Adams, RNMountlake Terrace, WA1306308341
- Joseph AdamsBellingham, WA1063240125
- Sophia Adams, ARNPSeattle, WA1902361157
- Juliana Adarmes, DNPTacoma, WA1578280442
Common questions
What is Rhiannon A. Armstrong, ARNP's NPI number?
Rhiannon A. Armstrong, ARNP's National Provider Identifier (NPI) is 1366090110, issued on Aug 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Rhiannon A. Armstrong, ARNP located?
The NPPES record lists a practice address at 316 W Boone Ave Ste 656, Spokane, WA, 99201. Phone: (509) 872-5009. Providers update this record themselves, so call before visiting.
How can I verify Rhiannon A. Armstrong, ARNP's license?
NPPES lists Washington license number AP61004461, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Rhiannon A. Armstrong, ARNP prescribe under Medicare Part D?
In 2024, Rhiannon A. Armstrong, ARNP had 184 Medicare Part D claims for 40 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.