Ian Clark-Johnson
NPI 1114558160 · Addiction (Substance Use Disorder) Counselor · San Francisco, CA
Ian Clark-Johnson is a Addiction (Substance Use Disorder) Counselor provider in San Francisco, CA (NPI 1114558160).
Provider details
- NPI number
- 1114558160
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 8548 (CA)
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
6 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
- 2020-01-29
- Last updated
- 2020-01-29
- Certified
- 2020-01-29
Frequently asked questions
- What is Ian Clark-Johnson's NPI number?
- Ian Clark-Johnson's National Provider Identifier (NPI) is 1114558160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ian Clark-Johnson's specialty?
- Ian Clark-Johnson is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Ian Clark-Johnson located?
- Ian Clark-Johnson's practice location on file with NPPES is 1735 Mission St, San Francisco, CA 94103-2417.
- What is Ian Clark-Johnson's phone number?
- The practice phone number listed in the NPPES registry for Ian Clark-Johnson is (415) 912-1827.
- Is Ian Clark-Johnson's NPI active?
- Yes — Ian Clark-Johnson's NPI (1114558160) is active in the NPPES registry as of the last update on 2020-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.