Timothy Mason, MSW
NPI 1558420463 · Mental Health Counselor · San Francisco, CA
Timothy Mason, MSW is a Mental Health Counselor provider in San Francisco, CA (NPI 1558420463).
Provider details
- NPI number
- 1558420463
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Male
- Sole proprietor
- Yes
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
19 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
- 2006-12-06
- Last updated
- 2021-03-19
- Certified
- 2021-03-19
Frequently asked questions
- What is Timothy Mason's NPI number?
- Timothy Mason's National Provider Identifier (NPI) is 1558420463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Mason's specialty?
- Timothy Mason is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Timothy Mason located?
- Timothy Mason's practice location on file with NPPES is 134 Golden Gate Ave, San Francisco, CA 94102-3810.
- What is Timothy Mason's phone number?
- The practice phone number listed in the NPPES registry for Timothy Mason is (415) 673-5700.
- Is Timothy Mason's NPI active?
- Yes — Timothy Mason's NPI (1558420463) is active in the NPPES registry as of the last update on 2021-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.