David Cassell, LCSW
NPI 1154481422 · Clinical Social Worker · San Rafael, CA
David Cassell, LCSW is a Clinical Social Worker provider in San Rafael, CA (NPI 1154481422).
Provider details
- NPI number
- 1154481422
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 11527 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
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)
- 1340 Arnold DrSte 200Martinez, CA 94553-4189Phone: (925) 957-5131Fax: (925) 957-5156
Registry dates
- Enumerated
- 2006-12-09
- Last updated
- 2019-03-13
Frequently asked questions
- What is David Cassell's NPI number?
- David Cassell's National Provider Identifier (NPI) is 1154481422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Cassell's specialty?
- David Cassell is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Cassell located?
- David Cassell's practice location on file with NPPES is 10 N San Pedro Rd, San Rafael, CA 94903.
- What is David Cassell's phone number?
- The practice phone number listed in the NPPES registry for David Cassell is (415) 515-0847.
- Is David Cassell's NPI active?
- Yes — David Cassell's NPI (1154481422) is active in the NPPES registry as of the last update on 2019-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.