Matthew Haynes
NPI 1225308711 · Clinical Social Worker · Walnut Creek, CA
Matthew Haynes is a Clinical Social Worker provider in Walnut Creek, CA (NPI 1225308711).
Provider details
- NPI number
- 1225308711
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- LCSW79323 (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
14 yrs in NPPES registry
- Profile completeness38% of score
100% 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)
- 102 S 11th StSan Jose, CA 95112-2132Phone: (408) 998-5191Fax: (408) 279-1930
Registry dates
- Enumerated
- 2011-12-30
- Last updated
- 2022-02-11
Frequently asked questions
- What is Matthew Haynes's NPI number?
- Matthew Haynes's National Provider Identifier (NPI) is 1225308711, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Haynes's specialty?
- Matthew Haynes is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Matthew Haynes located?
- Matthew Haynes's practice location on file with NPPES is 710 S Broadway Ste 300, Walnut Creek, CA 94596-5229.
- What is Matthew Haynes's phone number?
- The practice phone number listed in the NPPES registry for Matthew Haynes is (925) 295-3980.
- Is Matthew Haynes's NPI active?
- Yes — Matthew Haynes's NPI (1225308711) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.