Sheilalyn Williams
NPI 1134561905 · Clinical Social Worker · Stanford, CA
Sheilalyn Williams is a Clinical Social Worker provider in Stanford, CA (NPI 1134561905).
Provider details
- NPI number
- 1134561905
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Counselor101Y00000X
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
- 2013-07-22
- Last updated
- 2026-01-14
- Certified
- 2026-01-14
Frequently asked questions
- What is Sheilalyn Williams's NPI number?
- Sheilalyn Williams's National Provider Identifier (NPI) is 1134561905, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sheilalyn Williams's specialty?
- Sheilalyn Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sheilalyn Williams located?
- Sheilalyn Williams's practice location on file with NPPES is 866 Campus Dr, Stanford, CA 94305-8508.
- What is Sheilalyn Williams's phone number?
- The practice phone number listed in the NPPES registry for Sheilalyn Williams is (650) 723-3785.
- Is Sheilalyn Williams's NPI active?
- Yes — Sheilalyn Williams's NPI (1134561905) is active in the NPPES registry as of the last update on 2026-01-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.