Katherine Williamson
NPI 1023573854 · Mental Health Counselor · Charleston, SC
Katherine Williamson is a Mental Health Counselor provider in Charleston, SC (NPI 1023573854).
Provider details
- NPI number
- 1023573854
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
7 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
- 2019-02-06
- Last updated
- 2019-02-06
Frequently asked questions
- What is Katherine Williamson's NPI number?
- Katherine Williamson's National Provider Identifier (NPI) is 1023573854, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Williamson's specialty?
- Katherine Williamson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Katherine Williamson located?
- Katherine Williamson's practice location on file with NPPES is 2100 Charlie Hall Blvd, Charleston, SC 29414-5832.
- What is Katherine Williamson's phone number?
- The practice phone number listed in the NPPES registry for Katherine Williamson is (843) 212-8968.
- Is Katherine Williamson's NPI active?
- Yes — Katherine Williamson's NPI (1023573854) is active in the NPPES registry as of the last update on 2019-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.