Duncan Simpson, LISW, LICDC
NPI 1346734456 · Clinical Social Worker · Tacoma, WA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duncan Simpson, LISW, LICDC is a Clinical Social Worker provider in Tacoma, WA (NPI 1346734456).
Provider details
- NPI number
- 1346734456
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LISW, LICDC
- Sex
- Male
- Sole proprietor
- No
- License
- LICDC.162034 (OH)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
8 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
- 2018-06-21
- Last updated
- 2024-12-18
- Certified
- 2024-12-12
Frequently asked questions
- What is Duncan Simpson's NPI number?
- Duncan Simpson's National Provider Identifier (NPI) is 1346734456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duncan Simpson's specialty?
- Duncan Simpson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Duncan Simpson located?
- Duncan Simpson's practice location on file with NPPES is 9040 Jackson Ave, Tacoma, WA 98431-0001.
- What is Duncan Simpson's phone number?
- The practice phone number listed in the NPPES registry for Duncan Simpson is (253) 968-1110.
- Does Duncan Simpson accept Medicare?
- Duncan Simpson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duncan Simpson's NPI active?
- Yes — Duncan Simpson's NPI (1346734456) is active in the NPPES registry as of the last update on 2024-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.