Madeline Williamson
NPI 1790508075 · Addiction (Substance Use Disorder) Counselor · Rock Hill, SC
Madeline Williamson is a Addiction (Substance Use Disorder) Counselor provider in Rock Hill, SC (NPI 1790508075).
Provider details
- NPI number
- 1790508075
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) 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
1 yr 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
- 2024-11-05
- Last updated
- 2024-11-05
- Certified
- 2024-11-05
Frequently asked questions
- What is Madeline Williamson's NPI number?
- Madeline Williamson's National Provider Identifier (NPI) is 1790508075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madeline Williamson's specialty?
- Madeline Williamson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Madeline Williamson located?
- Madeline Williamson's practice location on file with NPPES is 199 Herlong Ave S, Rock Hill, SC 29732-1186.
- What is Madeline Williamson's phone number?
- The practice phone number listed in the NPPES registry for Madeline Williamson is (803) 324-1800.
- Is Madeline Williamson's NPI active?
- Yes — Madeline Williamson's NPI (1790508075) is active in the NPPES registry as of the last update on 2024-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.