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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ELIZABETH MARIE SIERRA LCSW, PPSC
NPI 1770412926
Social Worker - Clinical in Santa Ana, CA

Active since May 14, 2026
4218 W HAZARD AVE, SANTA ANA, CA 92703(714) 663-6403 Get Directions Write a Review

NPPES record added: May 14, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Elizabeth Marie Sierra Lcsw, Ppsc NPPES

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

ELIZABETH MARIE SIERRA LCSW, PPSC (NPI 1770412926) is an individual clinical provider in Santa Ana, California, licensed in California (136156) and active in the NPI registry since May 2026.

NPPES Registry Identity

NPI1770412926
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameELIZABETH MARIE SIERRACredential: LCSW, PPSC
Location Address4218 W HAZARD AVESanta Ana, CA 92703-2610
Mailing Address4218 W Hazard AveSanta Ana, CA 92703-2610 · (714) 663-6403
Phone(714) 663-6403
Sole ProprietorNo
Enumeration DateMay 14, 2026
NPPES CertifiedMay 14, 2026
✔ NPI 1770412926 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 136156
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.
4218 W HAZARD AVE, Santa Ana, CA 92703
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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 Elizabeth Sierra's NPI number?

The NPI number for Elizabeth Sierra is 1770412926. It was assigned to this individual provider in the NPPES registry on May 14, 2026.

Where is Elizabeth Sierra located?

Elizabeth Sierra practices at 4218 W Hazard Ave, Santa Ana, CA 92703. The listed phone number is (714) 663-6403.

What is Elizabeth Sierra'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 Elizabeth Sierra was last updated on May 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.