Kathleen O'Brien, MSW
NPI 1831241843 · Clinical Social Worker · San Francisco, CA
Kathleen O'Brien, MSW is a Clinical Social Worker provider in San Francisco, CA (NPI 1831241843).
Provider details
- NPI number
- 1831241843
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
- License
- LCS11389 (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
19 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
- 2007-01-18
- Last updated
- 2023-09-07
Frequently asked questions
- What is Kathleen O'Brien's NPI number?
- Kathleen O'Brien's National Provider Identifier (NPI) is 1831241843, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen O'Brien's specialty?
- Kathleen O'Brien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Kathleen O'Brien located?
- Kathleen O'Brien's practice location on file with NPPES is 1001 Potrero Ave, San Francisco, CA 94110-3518.
- What is Kathleen O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Kathleen O'Brien is (415) 206-5071.
- Is Kathleen O'Brien's NPI active?
- Yes — Kathleen O'Brien's NPI (1831241843) is active in the NPPES registry as of the last update on 2023-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.