Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Barry William Slone, PH.D.

Q: What is the NPI number for Barry Slone?

The National Provider Identifier (NPI) for Barry Slone is 1831187285, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Psychologist in Aliso Viejo, CA · enumerated 2005.

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

National Provider Identifier

1831187285

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Registry record

Entity type Individual (Type 1)

Name Dr. Barry William Slone

Credential PH.D.

Sex Male

Practice address 24502 Pacific Park Dr, Suite 101, Aliso Viejo, CA, 92656

Phone (949) 599-3044

Fax (949) 643-9628

Enumeration date Oct 10, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY8916 (CA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

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 Barry Slone practice?

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

What is the NPI number for Barry Slone?

The National Provider Identifier (NPI) for Barry Slone is 1831187285, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.