Diana on, LCSW
NPI 1033346705 · Clinical Social Worker · Chino Hills, CA
Diana on, LCSW is a Clinical Social Worker provider in Chino Hills, CA (NPI 1033346705).
Provider details
- NPI number
- 1033346705
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- ACSW35310 (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
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
Mailing address
Registry dates
- Enumerated
- 2009-06-19
- Last updated
- 2024-07-10
- Certified
- 2024-07-10
Frequently asked questions
- What is Diana on's NPI number?
- Diana on's National Provider Identifier (NPI) is 1033346705, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana on's specialty?
- Diana on is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Diana on located?
- Diana on's practice location on file with NPPES is 5939 Crestmont Dr, Chino Hills, CA 91709-3252.
- What is Diana on's phone number?
- The practice phone number listed in the NPPES registry for Diana on is (626) 664-0462.
- Is Diana on's NPI active?
- Yes — Diana on's NPI (1033346705) is active in the NPPES registry as of the last update on 2024-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.