Marley Duncan, CBT
NPI 1811644115 · Behavior Analyst · Seattle, WA
Marley Duncan, CBT is a Behavior Analyst provider in Seattle, WA (NPI 1811644115).
Provider details
- NPI number
- 1811644115
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Credential
- CBT
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Behavior Analyst103K00000X
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
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-03-07
- Last updated
- 2022-03-07
- Certified
- 2022-03-07
Frequently asked questions
- What is Marley Duncan's NPI number?
- Marley Duncan's National Provider Identifier (NPI) is 1811644115, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marley Duncan's specialty?
- Marley Duncan is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Marley Duncan located?
- Marley Duncan's practice location on file with NPPES is 6112 Gould Ave S, Seattle, WA 98108-2959.
- What is Marley Duncan's phone number?
- The practice phone number listed in the NPPES registry for Marley Duncan is (202) 780-6475.
- Is Marley Duncan's NPI active?
- Yes — Marley Duncan's NPI (1811644115) is active in the NPPES registry as of the last update on 2022-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.