Jay Williamson, M.A.
NPI 1417150491 · Mental Health Counselor · Bellevue, WA
Jay Williamson, M.A. is a Mental Health Counselor provider in Bellevue, WA (NPI 1417150491).
Provider details
- NPI number
- 1417150491
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- M.A.
- Sex
- Male
- Sole proprietor
- Yes
- License
- LH00005269 (WA)
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
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
- 2007-06-07
- Last updated
- 2025-09-11
Frequently asked questions
- What is Jay Williamson's NPI number?
- Jay Williamson's National Provider Identifier (NPI) is 1417150491, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Williamson's specialty?
- Jay Williamson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Jay Williamson located?
- Jay Williamson's practice location on file with NPPES is 13606 Ne 20th St, Bellevue, WA 98005-2011.
- What is Jay Williamson's phone number?
- The practice phone number listed in the NPPES registry for Jay Williamson is (425) 643-2383.
- Is Jay Williamson's NPI active?
- Yes — Jay Williamson's NPI (1417150491) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.