NPPES file of Aug 9, 2026

Sonja J. Serwold, PT

Physical Therapist · Edmonds, WA

Sonja J. Serwold, PT is a physical therapist with a practice address in Edmonds, Washington, and NPI 1437253457, issued on Sep 11, 2006. Check the license (Washington PT00008705, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437253457
Name
Sonja J. Serwold
Credential
PT
Primary taxonomy
Physical Therapist 225100000X
License number
PT00008705 WA
Self-reported in NPPES; status is on the state search
Practice location
100 2ND Ave S, Edmonds, WA 98020
Phone
(206) 601-6084
Enumerated
Sep 11, 2006
Record last updated
Feb 25, 2022
Fax
(425) 385-0988
Medicare enrollment
Enrolled (PECOS I20071105000450); 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 Sonja J. Serwold 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 PT00008705
    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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Bills Medicare through one group practice

  1. Mountain2city Physical Therapy PLLCEdmonds, WA

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

Sonja J. Serwold among 7,493 physical therapist records in Washington

Sonja J. Serwold, PT is one of 7,493 physical therapist records with a practice address in Washington. 38% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 80% newer
  • In a Medicare fileYes · 38% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2001 · median 2016 among the 2,929 with a school on file
  • Record last updated2022 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

66 physical therapist records list a practice address in Edmonds

They are 66 of the 1,558 NPPES records with a practice address in Edmonds, and 7,493 physical therapist records in Washington.

The 8 physical therapist records with the nearest ZIP codes

  1. Lisa Aikens, PT, ATC, MOMTEdmonds, WA 980201881876027
  2. Mary Baebler, PTEdmonds, WA 980201205910577
  3. Anna Brown, D.P.T.Edmonds, WA 980201154654119
  4. Tiffanie Chu, DPTEdmonds, WA 980201770188377
  5. Alicia Farrow, DPTEdmonds, WA 980201649653486
  6. Allison Feldt, DPTEdmonds, WA 980201558626721
  7. Peggy Halwachs, P.T.Edmonds, WA 980201295859049
  8. Bernice Kegel, PTWoodway, WA 980201801016209

Common questions

What is Sonja J. Serwold, PT's NPI number?

Sonja J. Serwold, PT's National Provider Identifier (NPI) is 1437253457, issued on Sep 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sonja J. Serwold, PT located?

The NPPES record lists a practice address at 100 2ND Ave S, Edmonds, WA, 98020. Phone: (206) 601-6084. Providers update this record themselves, so call before visiting.

How can I verify Sonja J. Serwold, PT's license?

NPPES lists Washington license number PT00008705, as entered by the provider. 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. 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.