Joan Louise Ferrier, FPMHNP
Psychiatric/Mental Health Nurse Practitioner · Mukilteo, WA
Joan Louise Ferrier, FPMHNP is a psychiatric/mental health nurse practitioner with a practice address in Mukilteo, Washington, and NPI 1558638239, issued on Nov 22, 2011. Check the license (Washington AP60258250, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joan Louise Ferrier
- Credential
- FPMHNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- AP60258250 WA
RN60103267 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4686 Pointes Dr Ste 219, Mukilteo, WA 98275
- Phone
- (425) 405-8089
- Enumerated
- Nov 22, 2011
- Record last updated
- Dec 12, 2025
- Fax
- (425) 426-2277
- Medicare enrollment
- Enrolled (PECOS I20121129000436); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,875 in Washington → Look up another NPI →
Also registered at 4686 Pointes Dr Ste 219
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stephanie Sirisithi, DNP, ARNP, AGNP-CGerontology Nurse Practitioner1356082549
- Kevlin Slingwine, DNP, ARNP, AGNP-CGerontology Nurse Practitioner1639795305
Verify Joan Louise Ferrier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP60258250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
1,189 Medicare Part D claims for 154 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims.
Most prescribed
- Quetiapine Fumarate228 claims
- Trazodone Hcl125 claims
- Sertraline Hcl95 claims
- Memantine Hcl89 claims
- Divalproex Sodium56 claims
- Duloxetine Hcl56 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.
Bills Medicare through one group practice
- Novari Primary Care LLCMukilteo, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joan Louise Ferrier among 1,875 psychiatric/mental health nurse practitioner records in Washington
Joan Louise Ferrier, FPMHNP is one of 1,875 psychiatric/mental health nurse practitioner records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 20% of them.
- NPI issued2011 · 20% of these records are older, 77% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2011 · median 2020 among the 904 with a school on file
- Record last updated2025 · 28% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 psychiatric/mental health nurse practitioner records list a practice address in Mukilteo
They are 5 of the 430 NPPES records with a practice address in Mukilteo, and 1,875 psychiatric/mental health nurse practitioner records in Washington.
All 1,875 in Washington → Every provider in Mukilteo → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Olena Fox, ARNPMukilteo, WA 982751033509260
- Christopher Montaperto, ARNPMukilteo, WA 982751477713113
- Mario Velasquez, DNP, ARNP, PMHNP-BCMukilteo, WA 982751467107474
- Melissa Weidner, DNPMukilteo, WA 982751588493456
- Falyn Crosby, ARNPMount Vernon, WA 982741780437590
- Jasleena Grewal, ARNPMount Vernon, WA 982741982177168
- Eric Larsen, DNPMount Vernon, WA 982741205490661
- Jessica Rienstra, ARNP, PMHNP-BCNooksack, WA 982761841981891
Common questions
What is Joan Louise Ferrier, FPMHNP's NPI number?
Joan Louise Ferrier, FPMHNP's National Provider Identifier (NPI) is 1558638239, issued on Nov 22, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Joan Louise Ferrier, FPMHNP located?
The NPPES record lists a practice address at 4686 Pointes Dr Ste 219, Mukilteo, WA, 98275. Phone: (425) 405-8089. Providers update this record themselves, so call before visiting.
How can I verify Joan Louise Ferrier, FPMHNP's license?
NPPES lists Washington license number AP60258250, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Joan Louise Ferrier, FPMHNP prescribe under Medicare Part D?
In 2024, Joan Louise Ferrier, FPMHNP had 1,189 Medicare Part D claims for 154 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.