Devon Singh-Barrett, PH.D.
NPI 1033391644 · Clinical Psychologist · Mercer Island, WA
Devon Singh-Barrett, PH.D. is a Clinical Psychologist provider in Mercer Island, WA (NPI 1033391644).
Provider details
- NPI number
- 1033391644
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PY00003858 (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
18 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
- 2007-12-05
- Last updated
- 2007-12-05
Frequently asked questions
- What is Devon Singh-Barrett's NPI number?
- Devon Singh-Barrett's National Provider Identifier (NPI) is 1033391644, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Devon Singh-Barrett's specialty?
- Devon Singh-Barrett is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Devon Singh-Barrett located?
- Devon Singh-Barrett's practice location on file with NPPES is 3035 Island Crest Way, Mercer Island, WA 98040-2919.
- What is Devon Singh-Barrett's phone number?
- The practice phone number listed in the NPPES registry for Devon Singh-Barrett is (206) 275-0764.
- Is Devon Singh-Barrett's NPI active?
- Yes — Devon Singh-Barrett's NPI (1033391644) is active in the NPPES registry as of the last update on 2007-12-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.