Hillary Thomason
Social Worker · Seattle, WA
Hillary Thomason is a social worker with a practice address in Seattle, Washington, and NPI 1922982297, issued on Aug 1, 2025. Check the license with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Hillary Thomason
- Primary taxonomy
- Social Worker 104100000X
- Practice location
- 4800 Sand Point Way NE, Seattle, WA 98105
- Phone
- (206) 987-9202
- Enumerated
- Aug 1, 2025
- Record last updated
- Aug 27, 2025
- Medicare enrollment
- Enrolled (PECOS I20250912003375); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 2,141 in Washington → Look up another NPI →
Also registered at 4800 Sand Point Way NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Hillary Thomason in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Hillary Thomason among 2,141 social worker records in Washington
Hillary Thomason is one of 2,141 social worker records with a practice address in Washington. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 88% of them.
- NPI issued2025 · 88% of these records are older, 4% newer
- In a Medicare fileNo · 5% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated2022 · median 2014 among the 165 with a school on file
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
468 social worker records list a practice address in Seattle
They are 468 of the 41,956 NPPES records with a practice address in Seattle, and 2,141 social worker records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,141 in Washington → Every provider in Seattle → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Antonia Caliboso, LICSWSeattle, WA 981051033507074
- Kirstie Catlin, LICSWSeattle, WA 981051831611607
- Brianna FoleySeattle, WA 981051639529159
- Douglas Hansen, MSWSeattle, WA 981051093862096
- Claire JesseSeattle, WA 981051467827451
- Kendra Koeplin, LICSWSeattle, WA 981051871613406
- Peter Loft, MSWSeattle, WA 981051891316840
- Tara MadsenSeattle, WA 981051780915793
Common questions
What is Hillary Thomason's NPI number?
Hillary Thomason's National Provider Identifier (NPI) is 1922982297, issued on Aug 1, 2025. An NPI identifies a provider in billing; it is not a license.
Where is Hillary Thomason located?
The NPPES record lists a practice address at 4800 Sand Point Way NE, Seattle, WA, 98105. Phone: (206) 987-9202. Providers update this record themselves, so call before visiting.
How can I verify Hillary Thomason's license?
Search the Washington board that licenses this profession; the NPPES record confirms identity 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. 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.