IndividualActive
Alix Williams, LICSW
NPI 1124507991 · Clinical Social Worker · Seattle, WA
Alix Williams, LICSW is a Clinical Social Worker provider in Seattle, WA (NPI 1124507991).
Provider details
- NPI number
- 1124507991
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LICSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LW60710028 (WA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(77/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
125 16th Ave E
Seattle, WA 98112-5211
Phone: (206) 326-3000
Street-level locationGet directions
Mailing address
2457 Queen Anne Ave N
Seattle, WA 98109-2021
Additional practice locations (2)
- 1035 116th Ave NeBellevue, WA 98004-4604Phone: (425) 688-5000
- 2457 Queen Anne Ave NSeattle, WA 98109-2021Phone: (206) 437-3617
Registry dates
- Enumerated
- 2018-08-12
- Last updated
- 2021-06-22
- Certified
- 2021-06-22
Frequently asked questions
- What is Alix Williams's NPI number?
- Alix Williams's National Provider Identifier (NPI) is 1124507991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alix Williams's specialty?
- Alix Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Alix Williams located?
- Alix Williams's practice location on file with NPPES is 125 16th Ave E, Seattle, WA 98112-5211.
- What is Alix Williams's phone number?
- The practice phone number listed in the NPPES registry for Alix Williams is (206) 326-3000.
- Is Alix Williams's NPI active?
- Yes — Alix Williams's NPI (1124507991) is active in the NPPES registry as of the last update on 2021-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.