Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Chastity Lynn O'Brien

Licensed Psychiatric Technician in Santa Maria, CA · enumerated 2018.

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

National Provider Identifier

1316440753

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Registry record

Entity type Individual (Type 1)

Name Chastity Lynn O'Brien

Sex Female

Practice address Santa Maria, CA, 93458

Phone (805) 554-1801

Enumeration date Mar 12, 2018

Last updated in NPPES Mar 12, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

167G00000X Licensed Psychiatric Technician Nursing Service Providers · License PT34279 (CA) Primary

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

Where does Chastity O'Brien practice?

The practice location on file with NPPES is in Santa Maria, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Chastity O'Brien?

The National Provider Identifier (NPI) for Chastity O'Brien is 1316440753, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-12.