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Diana Ellis, LCSW
NPI 1346476546 · Clinical Social Worker · Sunnyvale, CA
Diana Ellis, LCSW is a Clinical Social Worker provider in Sunnyvale, CA (NPI 1346476546).
Provider details
- NPI number
- 1346476546
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- LCS13911 (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
17 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
877 W Fremont Ave Ste K5
Sunnyvale, CA 94087-2319
Phone: (408) 517-9835
Street-level locationGet directions
Mailing address
507 Blueberry Ter
San Jose, CA 95129-1902
Registry dates
- Enumerated
- 2009-06-03
- Last updated
- 2009-06-03
Frequently asked questions
- What is Diana Ellis's NPI number?
- Diana Ellis's National Provider Identifier (NPI) is 1346476546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Ellis's specialty?
- Diana Ellis is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Diana Ellis located?
- Diana Ellis's practice location on file with NPPES is 877 W Fremont Ave Ste K5, Sunnyvale, CA 94087-2319.
- What is Diana Ellis's phone number?
- The practice phone number listed in the NPPES registry for Diana Ellis is (408) 517-9835.
- Is Diana Ellis's NPI active?
- Yes — Diana Ellis's NPI (1346476546) is active in the NPPES registry as of the last update on 2009-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.