NPPES file of Aug 9, 2026

Sarah Dinneen Anderson, ARNP

Family Nurse Practitioner · Mattawa, WA

Sarah Dinneen Anderson, ARNP is a family nurse practitioner with a practice address in Mattawa, Washington, and NPI 1659118255, issued on Jul 10, 2024. Check the license (Washington AP61550139, 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
1659118255
Name
Sarah Dinneen Anderson
Credential
ARNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP61550139 WA
Self-reported in NPPES; status is on the state search
Practice location
601 Government RD, Mattawa, WA 99349
Phone
(509) 488-5256
Enumerated
Jul 10, 2024
Record last updated
Jul 31, 2024
Fax
(509) 488-9939
Medicare enrollment
Enrolled (PECOS I20240808000853); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2024
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 601 Government RD

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

  1. Kelly Brown, RDHDental Hygienist1245163880
  2. Misty Christensen, RDH, EFDADental Hygienist1770387508
  3. Bianca Mendoza, ODOptometrist1306572326
  4. Megan Pryce, RDHDental Hygienist1316610314
  5. Erika RitchieClinical Social Worker1790113652
  6. Nancy Santoyo, LMHC-ACounselor1568930964

Verify Sarah Dinneen Anderson 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 AP61550139
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average family nurse practitioner in 2024

17 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Sarah Anderson17
  2. Specialty average1,305

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. Columbia Basin Health AssociationOthello, WA

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

9 family nurse practitioner records list a practice address in Mattawa

They are 9 of the 30 NPPES records with a practice address in Mattawa, and 3,781 family nurse practitioner records in Washington.

Other family nurse practitioner records in Washington

  1. Erin Aas, ARNPOak Harbor, WA1972566206
  2. Amma AbabioSunnyside, WA1952056541
  3. Kimberly Abbey, NPBellevue, WA1700909181
  4. Mary Abbott, ARNP, FNP-CTacoma, WA1285514539
  5. Nurto AbdullaSeattle, WA1215629035
  6. Teresa Abernathy, ARNPOlympia, WA1124454533
  7. Brenda Abraham, N.P.Bremerton, WA1497745558
  8. Heina Abraham, APRN, FNP-CTukwila, WA1770169682
  9. Alan Abrams, ARNPEverett, WA1639347438
  10. Kristen Abrams, ARNPLakewood, WA1841449170

Common questions

What is Sarah Dinneen Anderson, ARNP's NPI number?

Sarah Dinneen Anderson, ARNP's National Provider Identifier (NPI) is 1659118255, issued on Jul 10, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Dinneen Anderson, ARNP located?

The NPPES record lists a practice address at 601 Government RD, Mattawa, WA, 99349. Phone: (509) 488-5256. Providers update this record themselves, so call before visiting.

How can I verify Sarah Dinneen Anderson, ARNP's license?

NPPES lists Washington license number AP61550139, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.

How much does Sarah Dinneen Anderson, ARNP prescribe under Medicare Part D?

In 2024, Sarah Dinneen Anderson, ARNP had 17 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. 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.