Cybil Williamson, MSW, LISW-CP
NPI 1871724039 · Clinical Social Worker · Sumter, SC
Cybil Williamson, MSW, LISW-CP is a Clinical Social Worker provider in Sumter, SC (NPI 1871724039).
Provider details
- NPI number
- 1871724039
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW, LISW-CP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 8669 (SC)
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
16 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
- 2009-08-05
- Last updated
- 2009-08-05
Frequently asked questions
- What is Cybil Williamson's NPI number?
- Cybil Williamson's National Provider Identifier (NPI) is 1871724039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cybil Williamson's specialty?
- Cybil Williamson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Cybil Williamson located?
- Cybil Williamson's practice location on file with NPPES is 2309 Harper St, Sumter, SC 29153-1910.
- What is Cybil Williamson's phone number?
- The practice phone number listed in the NPPES registry for Cybil Williamson is (803) 775-2801.
- Is Cybil Williamson's NPI active?
- Yes — Cybil Williamson's NPI (1871724039) is active in the NPPES registry as of the last update on 2009-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.