Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Los Angeles County Department of Mental Health

Case Management Agency in Long Beach, CA · enumerated 2011 · authorized official Stacy Ma Du Bois, Supervising Psychiatric Social Work.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1578861910

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Registry record

Entity type Organization (Type 2)

Legal business name Los Angeles County Department of Mental Health

Practice address 1333 Chestnut Ave, Long Beach, CA, 90813

Phone (562) 599-6418

Enumeration date Mar 9, 2011

Last updated in NPPES Mar 9, 2011

Taxonomy & classification

251B00000X Case Management Agency Agencies · License D1053453 (CA) Primary

Authorized official

Name Stacy Ma Du Bois

Title Supervising Psychiatric Social Work

Phone (213) 639-6744

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Los Angeles County Department of Mental Health?

Los Angeles County Department of Mental Health is registered in NPPES as a Case Management Agency (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-09.