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DIANA SEUNGHYE ON LCSW
NPI 1033346705
Social Worker - Clinical in Chino Hills, CA

Active since June 19, 2009
5939 CRESTMONT DR, CHINO HILLS, CA 91709(626) 664-0462 Get Directions Write a Review

NPPES record last updated: July 10, 2024. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 10, 2024, Feb 28, 2023 (2 updates tracked since 2023).

About Diana Seunghye On Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA SEUNGHYE ON LCSW (NPI 1033346705) is an individual clinical provider in Chino Hills, California, licensed in California (80518) and active in the NPI registry since June 2009.

NPPES Registry Identity

NPI1033346705
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDIANA SEUNGHYE ONCredential: LCSW
Location Address5939 CRESTMONT DRChino Hills, CA 91709-3252
Mailing Address5939 Crestmont DrChino Hills, CA 91709-3252 · (626) 664-0462
Phone(626) 664-0462
Sole ProprietorYes
Enumeration DateJune 19, 2009
Last NPPES UpdateJuly 10, 20242 updates tracked since enumeration
NPPES CertifiedJuly 10, 2024
✔ NPI 1033346705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 80518
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedCounselor · Mental HealthTaxonomy 101YM0800X · License ACSW35310 (CA)
5939 CRESTMONT DR, Chino Hills, CA 91709
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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana On's NPI number?

The NPI number for Diana On is 1033346705. It was assigned to this individual provider in the NPPES registry on June 19, 2009.

Where is Diana On located?

Diana On practices at 5939 Crestmont Dr, Chino Hills, CA 91709. The listed phone number is (626) 664-0462.

What is Diana On's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Diana On was last updated on July 10, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.