Mallory Williams, LMSW
NPI 1932813813 · Addiction (Substance Use Disorder) Counselor · Columbia, SC
Mallory Williams, LMSW is a Addiction (Substance Use Disorder) Counselor provider in Columbia, SC (NPI 1932813813).
Provider details
- NPI number
- 1932813813
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 15246 (SC)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
3 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
- 2023-01-05
- Last updated
- 2023-01-05
- Certified
- 2023-01-05
Frequently asked questions
- What is Mallory Williams's NPI number?
- Mallory Williams's National Provider Identifier (NPI) is 1932813813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory Williams's specialty?
- Mallory Williams is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mallory Williams located?
- Mallory Williams's practice location on file with NPPES is 2711 Colonial Dr, Columbia, SC 29203-6818.
- What is Mallory Williams's phone number?
- The practice phone number listed in the NPPES registry for Mallory Williams is (803) 726-9435.
- Is Mallory Williams's NPI active?
- Yes — Mallory Williams's NPI (1932813813) is active in the NPPES registry as of the last update on 2023-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.