IndividualActive
Katherine Brewer
NPI 1275765372 · Clinical Social Worker · San Leandro, CA
Katherine Brewer is a Clinical Social Worker provider in San Leandro, CA (NPI 1275765372).
Provider details
- NPI number
- 1275765372
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 84756 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(85/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
2275 Arlington Dr
San Leandro, CA 94578
Phone: (510) 317-1444
Street-level locationGet directions
Mailing address
2275 Arlington Dr
San Leandro, CA 94578-1132
Registry dates
- Enumerated
- 2009-08-23
- Last updated
- 2018-09-04
Frequently asked questions
- What is Katherine Brewer's NPI number?
- Katherine Brewer's National Provider Identifier (NPI) is 1275765372, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Brewer's specialty?
- Katherine Brewer is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katherine Brewer located?
- Katherine Brewer's practice location on file with NPPES is 2275 Arlington Dr, San Leandro, CA 94578.
- What is Katherine Brewer's phone number?
- The practice phone number listed in the NPPES registry for Katherine Brewer is (510) 317-1444.
- Is Katherine Brewer's NPI active?
- Yes — Katherine Brewer's NPI (1275765372) is active in the NPPES registry as of the last update on 2018-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.