Peter S. Loft, MSW
Social Worker · Seattle, WA
Peter S. Loft, MSW is a social worker with a practice address in Seattle, Washington, and NPI 1891316840, issued on Apr 30, 2020. Check the license (Washington LW00005306, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Peter S. Loft
- Credential
- MSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- LW00005306 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4800 Sand Point Way NE, Seattle, WA 98105
- Phone
- (206) 987-5223
- Enumerated
- Apr 30, 2020
- Record last updated
- May 5, 2026
- Fax
- (206) 985-3177
- Medicaid ID
- 1891316840 WA
- 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 Peter S. Loft in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license LW00005306Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Peter S. Loft among 2,141 social worker records in Washington
Peter S. Loft, MSW 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. Its NPI, issued in 2020, is newer than 50% of them.
- NPI issued2020 · 50% of these records are older, 44% newer
- In a Medicare fileYes · 5% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2026 · 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.
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
- Tara MadsenSeattle, WA 981051780915793
- Ethan McCormack, LICSWSeattle, WA 981051942612494
Common questions
What is Peter S. Loft, MSW's NPI number?
Peter S. Loft, MSW's National Provider Identifier (NPI) is 1891316840, issued on Apr 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Peter S. Loft, MSW located?
The NPPES record lists a practice address at 4800 Sand Point Way NE, Seattle, WA, 98105. Phone: (206) 987-5223. Providers update this record themselves, so call before visiting.
How can I verify Peter S. Loft, MSW's license?
NPPES lists Washington license number LW00005306, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
What is Peter S. Loft, MSW's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.