David John Marshall
Physical Therapy Assistant · Seattle, WA
David John Marshall is a physical therapy assistant with a practice address in Seattle, Washington, and NPI 1124289574, issued on Jun 18, 2008. Check the license (Washington 60043601, as entered in NPPES) with the Washington board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- David John Marshall
- Primary taxonomy
- Physical Therapy Assistant 225200000X
- License number
- 60043601 WA
Self-reported in NPPES; status is on the state search - Practice location
- 12505 Greenwood Ave N, Seattle, WA 98133
- Phone
- (206) 536-2616
- Enumerated
- Jun 18, 2008
- Record last updated
- Apr 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physical therapy assistant records → All 1,390 in Washington → Look up another NPI →
Also registered at 12505 Greenwood Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joanne BrodieOccupational Therapist1588203467
- Samantha Koopmans, PTAPhysical Medicine & Rehabilitation Physician1861168510
- Ashley Lankford, OTR/LOccupational Therapist1659020667
- Val PingreePhysical Therapy Assistant1760146237
Verify David John Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 60043601Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
David John Marshall among 1,390 physical therapy assistant records in Washington
David John Marshall is one of 1,390 physical therapy assistant records with a practice address in Washington. under 1% 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 2008, is newer than 10% of them.
- NPI issued2008 · 10% of these records are older, 83% newer
- In a Medicare fileNo · under 1% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2021 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225200000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Therapy Assistant providers in Washington
There are 1,390 physical therapy assistant records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,390 in Washington → Every provider in Seattle → Physical Therapy Assistant nationwide →
The 8 physical therapy assistant records with the nearest ZIP codes
- Maria Caballero, PTASeattle, WA 981331811557911
- Shelly Clayburn, LPTASeattle, WA 981331104065846
- Thomas Dostal, PTAShoreline, WA 981331932645520
- Douglas Eakin, P.T.A.Shoreline, WA 981331982863734
- Toya Flunder, TOYA FLUNDERShoreline, WA 981331598002941
- Kelly Ibe, PTASeattle, WA 981331669850715
- Elizabeth Paul, PTASeattle, WA 981331275810996
- Val PingreeSeattle, WA 981331760146237
Common questions
What is David John Marshall's NPI number?
David John Marshall's National Provider Identifier (NPI) is 1124289574, issued on Jun 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is David John Marshall located?
The NPPES record lists a practice address at 12505 Greenwood Ave N, Seattle, WA, 98133. Phone: (206) 536-2616. Providers update this record themselves, so call before visiting.
How can I verify David John Marshall's license?
NPPES lists Washington license number 60043601, 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. 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.