Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Barbara Chase

Psychologist in Ventura, CA · enumerated 2007.

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

National Provider Identifier

1598811564

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Registry record

Entity type Individual (Type 1)

Name Barbara Chase

Sex Female

Practice address 3291 Loma Vista Rd, Ventura, CA, 93003

Phone (805) 652-6556

Enumeration date Jan 25, 2007

Last updated in NPPES Feb 10, 2017

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY20719 (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.

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Frequently asked questions

What is the NPI number for Barbara Chase?

The National Provider Identifier (NPI) for Barbara Chase is 1598811564, a Type 1 (individual) record in the CMS NPPES registry.

Where does Barbara Chase practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-10.