David Slagle, MS
NPI 1174176127 · Marriage & Family Therapist · Shoreline, WA
David Slagle, MS is a Marriage & Family Therapist provider in Shoreline, WA (NPI 1174176127).
Provider details
- NPI number
- 1174176127
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 00001108 (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
6 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
- 2019-07-18
- Last updated
- 2019-07-18
Frequently asked questions
- What is David Slagle's NPI number?
- David Slagle's National Provider Identifier (NPI) is 1174176127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Slagle's specialty?
- David Slagle is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is David Slagle located?
- David Slagle's practice location on file with NPPES is 1424 Ne 155th St Ste 205, Shoreline, WA 98155-7104.
- What is David Slagle's phone number?
- The practice phone number listed in the NPPES registry for David Slagle is (206) 271-1131.
- Is David Slagle's NPI active?
- Yes — David Slagle's NPI (1174176127) is active in the NPPES registry as of the last update on 2019-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.