Sierra Johnson
NPI 1891496188 · Addiction (Substance Use Disorder) Counselor · Union, SC
Sierra Johnson is a Addiction (Substance Use Disorder) Counselor provider in Union, SC (NPI 1891496188).
Provider details
- NPI number
- 1891496188
- 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
3 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
- 2023-03-14
- Last updated
- 2023-03-14
- Certified
- 2023-03-14
Frequently asked questions
- What is Sierra Johnson's NPI number?
- Sierra Johnson's National Provider Identifier (NPI) is 1891496188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Johnson's specialty?
- Sierra Johnson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Sierra Johnson located?
- Sierra Johnson's practice location on file with NPPES is 201 S Herndon St, Union, SC 29379-2231.
- What is Sierra Johnson's phone number?
- The practice phone number listed in the NPPES registry for Sierra Johnson is (864) 429-1656.
- Is Sierra Johnson's NPI active?
- Yes — Sierra Johnson's NPI (1891496188) is active in the NPPES registry as of the last update on 2023-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.