Glen Clark
NPI 1952585218 · Addiction (Substance Use Disorder) Counselor · San Francisco, CA
Glen Clark is a Addiction (Substance Use Disorder) Counselor provider in San Francisco, CA (NPI 1952585218).
Provider details
- NPI number
- 1952585218
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- 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
18 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 900 Laurel AveSan Mateo, CA 94401-4211Phone: (650) 347-8088
Registry dates
- Enumerated
- 2007-12-21
- Last updated
- 2024-12-17
- Certified
- 2024-12-17
Frequently asked questions
- What is Glen Clark's NPI number?
- Glen Clark's National Provider Identifier (NPI) is 1952585218, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Glen Clark's specialty?
- Glen Clark is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Glen Clark located?
- Glen Clark's practice location on file with NPPES is 1301 Pierce St., San Francisco, CA 94115.
- What is Glen Clark's phone number?
- The practice phone number listed in the NPPES registry for Glen Clark is (415) 563-8200.
- Is Glen Clark's NPI active?
- Yes — Glen Clark's NPI (1952585218) is active in the NPPES registry as of the last update on 2024-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.