IndividualActive
Mark Johnson
NPI 1609025022 · Counselor · San Francisco, CA
Mark Johnson is a Counselor provider in San Francisco, CA (NPI 1609025022).
Provider details
- NPI number
- 1609025022
- Entity type
- Individual
- Primary specialty
- CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
1390 Market St
# 800
San Francisco, CA 94102-5402
Phone: (415) 626-7000
Street-level locationGet directions
Mailing address
811 York St
Oakland, CA 94610-2160
Registry dates
- Enumerated
- 2008-09-10
- Last updated
- 2008-09-10
Frequently asked questions
- What is Mark Johnson's NPI number?
- Mark Johnson's National Provider Identifier (NPI) is 1609025022, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Johnson's specialty?
- Mark Johnson is listed in the NPPES registry with a primary specialty of Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Johnson located?
- Mark Johnson's practice location on file with NPPES is 1390 Market St, San Francisco, CA 94102-5402.
- What is Mark Johnson's phone number?
- The practice phone number listed in the NPPES registry for Mark Johnson is (415) 626-7000.
- Is Mark Johnson's NPI active?
- Yes — Mark Johnson's NPI (1609025022) is active in the NPPES registry as of the last update on 2008-09-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.