NPPES file of Aug 9, 2026

Alexandria Cook, ARNP

Psychiatric/Mental Health Nurse Practitioner · Seattle, WA

Alexandria Cook, ARNP is a psychiatric/mental health nurse practitioner with a practice address in Seattle, Washington, and NPI 1710531371, issued on Jul 31, 2019. Check the license (Washington AP61600798, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710531371
Name
Alexandria Cook
Credential
ARNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
AP61600798 WA
Self-reported in NPPES; status is on the state search
Practice location
325 9TH Ave, Seattle, WA 98104
Phone
(206) 520-5000
Enumerated
Jul 31, 2019
Record last updated
May 14, 2025
Medicare enrollment
Enrolled (PECOS I20250528003089); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 325 9TH Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Noor Aaf, PA-CMedical Physician Assistant1558394171
  2. Sheida Aalami, M.D.Internal Medicine Physician1730573296
  3. Collette AbbottHospitalist Physician1306208293
  4. Akrm Abdalrahman, MD, MSCritical Care Medicine (Anesthesiology) Physician1801374905
  5. Martin Abdo, COUNSELORCounselor1821202904
  6. Nauzley Abedini, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1043637408

Verify Alexandria Cook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Washington board licenses this profession
    Search for license AP61600798
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Washington license search

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3.9 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024

3,539 Medicare Part D claims for 131 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.

  1. Alexandria Cook3,539
  2. Specialty average906

Most prescribed

  1. Clozapine298 claims
  2. Olanzapine275 claims
  3. Trazodone Hcl176 claims
  4. Sertraline Hcl173 claims
  5. Quetiapine Fumarate131 claims
  6. Lamotrigine125 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

  1. The Association OF University PhysiciansSeattle, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alexandria Cook among 1,875 psychiatric/mental health nurse practitioner records in Washington

Alexandria Cook, ARNP 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 2019, is newer than 50% of them.

  • NPI issued2019 · 50% of these records are older, 42% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2020 · 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).

Psychiatric/Mental Health Nurse Practitioner providers in Washington

There are 1,875 psychiatric/mental health nurse practitioner records in Washington.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Catherine Bonn, ARNPSeattle, WA 981041891723722
  2. Kara Carthel, D.N.P.Seattle, WA 981041447628664
  3. Joyce Farrell, ARNPSeattle, WA 981041083646897
  4. Shirley Gassner, ARNPSeattle, WA 981041093953770
  5. Nina Geiger, ARNPSeattle, WA 981041205865326
  6. Meaghen Hart-Williams, APRNSeattle, WA 981041962831404
  7. Noel Howes, ARNPSeattle, WA 981041659390565
  8. Shannon LemasterSeattle, WA 981041649553645

Common questions

What is Alexandria Cook, ARNP's NPI number?

Alexandria Cook, ARNP's National Provider Identifier (NPI) is 1710531371, issued on Jul 31, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alexandria Cook, ARNP located?

The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.

How can I verify Alexandria Cook, ARNP's license?

NPPES lists Washington license number AP61600798, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Alexandria Cook, ARNP prescribe under Medicare Part D?

In 2024, Alexandria Cook, ARNP had 3,539 Medicare Part D claims for 131 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.