James Marshall, CDP
NPI 1437256575 · Addiction (Substance Use Disorder) Counselor · Seattle, WA
James Marshall, CDP is a Addiction (Substance Use Disorder) Counselor provider in Seattle, WA (NPI 1437256575).
Provider details
- NPI number
- 1437256575
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CDP
- Sex
- Male
- Sole proprietor
- No
- License
- CP00003413 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Marshall's NPI number?
- James Marshall's National Provider Identifier (NPI) is 1437256575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Marshall's specialty?
- James Marshall is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is James Marshall located?
- James Marshall's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2420.
- What is James Marshall's phone number?
- The practice phone number listed in the NPPES registry for James Marshall is (206) 731-3000.
- Is James Marshall's NPI active?
- Yes — James Marshall's NPI (1437256575) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.