NPPES file of Aug 9, 2026

Sonya Dempsey, ARNP

Psychiatric/Mental Health Nurse Practitioner · Kennewick, WA

Sonya Dempsey, ARNP is a psychiatric/mental health nurse practitioner with a practice address in Kennewick, Washington, and NPI 1265274526, issued on Jun 8, 2024. Check the license (Washington AP51561778, 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
1265274526
Name
Sonya Dempsey
Credential
ARNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
AP51561778 WA
Self-reported in NPPES; status is on the state search
Practice location
34504 S Valley Vista PR SE, Kennewick, WA 99338
Phone
(509) 430-6257
Enumerated
Jun 8, 2024
Record last updated
Jun 8, 2024
Medicare enrollment
Enrolled (PECOS I20240930001626); accepts Medicare assignment
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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Verify Sonya Dempsey 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 AP51561778
    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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30% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

631 Medicare Part D claims for 133 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.

  1. Sonya Dempsey631
  2. Specialty average906

Most prescribed

  1. Levothyroxine Sodium32 claims
  2. Potassium Chloride21 claims
  3. Omeprazole20 claims
  4. Quetiapine Fumarate20 claims
  5. Hydralazine Hcl19 claims
  6. Sertraline Hcl19 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: $170.57

7 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, 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.

  1. Sonya Dempsey$170.57
  2. Specialty average$1,027.77

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Sonya Dempsey among 1,875 psychiatric/mental health nurse practitioner records in Washington

Sonya Dempsey, 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 2024, is newer than 86% of them.

  • NPI issued2024 · 86% of these records are older, 8% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated2024 · median 2020 among the 904 with a school on file
  • Record last updated2024 · 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).

22 psychiatric/mental health nurse practitioner records list a practice address in Kennewick

They are 22 of the 2,317 NPPES records with a practice address in Kennewick, and 1,875 psychiatric/mental health nurse practitioner records in Washington.

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

  1. Miriam OkochiKennewick, WA 993381184305062
  2. Mary Ameh, ARNPKennewick, WA 993371063881274
  3. Michael Anthony Arnuco, DNP-PMHNPKennewick, WA 993361376412270
  4. Ashley Cummings, ARNPKennewick, WA 993361114493004
  5. Winchester DangKennewick, WA 993361679075881
  6. Miguel De La Mora, DNP, PMHNPKennewick, WA 993361821874462
  7. Alejandra Elizondo, DNP PMHNPKennewick, WA 993361255229100
  8. Jennifer Ferguson, DNP, ARNPKennewick, WA 993361780202564

Common questions

What is Sonya Dempsey, ARNP's NPI number?

Sonya Dempsey, ARNP's National Provider Identifier (NPI) is 1265274526, issued on Jun 8, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Sonya Dempsey, ARNP located?

The NPPES record lists a practice address at 34504 S Valley Vista PR SE, Kennewick, WA, 99338. Phone: (509) 430-6257. Providers update this record themselves, so call before visiting.

How can I verify Sonya Dempsey, ARNP's license?

NPPES lists Washington license number AP51561778, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Sonya Dempsey, ARNP prescribe under Medicare Part D?

In 2024, Sonya Dempsey, ARNP had 631 Medicare Part D claims for 133 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.