David Marshall
NPI 1124289574 · Physical Therapy Assistant · Seattle, WA
David Marshall is a Physical Therapy Assistant provider in Seattle, WA (NPI 1124289574).
Provider details
- NPI number
- 1124289574
- Entity type
- Individual
- Primary specialty
- Physical Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 60043601 (WA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- Bayview Manor11 West Aloha StreetSeattle, WASHINGTON 98119Phone: (206) 691-5340
Registry dates
- Enumerated
- 2008-06-18
- Last updated
- 2021-04-23
- Certified
- 2021-04-23
Frequently asked questions
- What is David Marshall's NPI number?
- David Marshall's National Provider Identifier (NPI) is 1124289574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Marshall's specialty?
- David Marshall is listed in the NPPES registry with a primary specialty of Physical Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is David Marshall located?
- David Marshall's practice location on file with NPPES is 12505 Greenwood Ave N, Seattle, WA 98133-8040.
- What is David Marshall's phone number?
- The practice phone number listed in the NPPES registry for David Marshall is (206) 536-2616.
- Is David Marshall's NPI active?
- Yes — David Marshall's NPI (1124289574) is active in the NPPES registry as of the last update on 2021-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.