IndividualActive
Sophia Williams
NPI 1649151911 · Clinical Social Worker · San Leandro, CA
Sophia Williams is a Clinical Social Worker provider in San Leandro, CA (NPI 1649151911).
Provider details
- NPI number
- 1649151911
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 130200 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(54/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
15200 Hesperian Blvdsuite 202
San Leandro, CA 94578
Phone: (510) 225-4040
Street-level locationGet directions
Mailing address
27604 Rosemont Ct
Moreno Valley, CA 92555-5716
Registry dates
- Enumerated
- 2025-09-11
- Last updated
- 2025-09-11
- Certified
- 2025-08-21
Frequently asked questions
- What is Sophia Williams's NPI number?
- Sophia Williams's National Provider Identifier (NPI) is 1649151911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sophia Williams's specialty?
- Sophia Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sophia Williams located?
- Sophia Williams's practice location on file with NPPES is 15200 Hesperian Blvdsuite 202, San Leandro, CA 94578.
- What is Sophia Williams's phone number?
- The practice phone number listed in the NPPES registry for Sophia Williams is (510) 225-4040.
- Is Sophia Williams's NPI active?
- Yes — Sophia Williams's NPI (1649151911) 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.