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CRISTINE D CHASTAIN LCSW
NPI 1811072598
Social Worker - Clinical in Mission Viejo, CA

Active since October 25, 2006
23120 ALICIA PKWY, SUITE 200, MISSION VIEJO, CA 92692(949) 235-2952(801) 494-2952 Get Directions Write a Review

NPPES record last updated: February 25, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 25, 2025, Jun 3, 2024 (2 updates tracked since 2024).

About Cristine D Chastain Lcsw NPPES

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

CRISTINE D CHASTAIN LCSW (NPI 1811072598) is an individual clinical provider in Mission Viejo, California, licensed in California (LCSW21618) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1811072598
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameCRISTINE D CHASTAINCredential: LCSW
Location Address23120 ALICIA PKWY, SUITE 200Mission Viejo, CA 92692-1210
Mailing Address23120 Alicia Pkwy Ste 236Mission Viejo, CA 92692-1210 · (949) 235-2952 · Fax (801) 494-2952
Phone(949) 235-2952
Fax(801) 494-2952
Sole ProprietorYes
Enumeration DateOctober 25, 2006
Last NPPES UpdateFebruary 25, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2025
✔ NPI 1811072598 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 · LCSW21618
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.
23120 ALICIA PKWY, Mission Viejo, CA 92692
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Other Names 1

Former Name (1)Cristine C O'brien Lcsw

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. JOSEPH ROBLING
Marriage & Family Therapist
23120 ALICIA PKWY
MISSION VIEJO, CA 92692
Orange County (949) 306-1772
MR. STEPHEN JAMES PRATT MA, MFT
Marriage & Family Therapist
23120 ALICIA PKWY
MISSION VIEJO, CA 92692
Orange County (949) 454-8861
ANDREW N SCHWARTZ PHD
Psychologist (Clinical Child & Adolescent)
23120 ALICIA PKWY, SUITE 241
MISSION VIEJO, CA 92692
Orange County (949) 588-5984

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 Cristine Chastain's NPI number?

The NPI number for Cristine Chastain is 1811072598. It was assigned to this individual provider in the NPPES registry on October 25, 2006. The provider is also known as Cristine C O'brien Lcsw.

Where is Cristine Chastain located?

Cristine Chastain practices at 23120 Alicia Pkwy Suite 200, Mission Viejo, CA 92692. The listed phone number is (949) 235-2952.

What is Cristine Chastain'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 Cristine Chastain was last updated on February 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.