Lassiter Williams
NPI 1144166760 · Clinical Social Worker · Philadelphia, PA
Lassiter Williams is a Clinical Social Worker provider in Philadelphia, PA (NPI 1144166760).
Provider details
- NPI number
- 1144166760
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- SW141697 (PA)
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
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
Mailing address
Registry dates
- Enumerated
- 2026-04-27
- Last updated
- 2026-04-27
- Certified
- 2026-04-27
Frequently asked questions
- What is Lassiter Williams's NPI number?
- Lassiter Williams's National Provider Identifier (NPI) is 1144166760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lassiter Williams's specialty?
- Lassiter Williams is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Lassiter Williams located?
- Lassiter Williams's practice location on file with NPPES is 4528 Regent St, Philadelphia, PA 19143-3723.
- What is Lassiter Williams's phone number?
- The practice phone number listed in the NPPES registry for Lassiter Williams is (484) 433-4778.
- Is Lassiter Williams's NPI active?
- Yes — Lassiter Williams's NPI (1144166760) is active in the NPPES registry as of the last update on 2026-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.