Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Jonathan Castillo, MS

Marriage & Family Therapist in Pleasant Hill, CA · enumerated 2025.

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

National Provider Identifier

1275328015

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Registry record

Entity type Individual (Type 1)

Name David Jonathan Castillo

Credential MS

Sex Male

Practice address 399 Taylor Blvd Ste 210, Pleasant Hill, CA, 94523

Phone (925) 685-9463

Fax (925) 685-9682

Enumeration date Apr 11, 2025

Last updated in NPPES Apr 11, 2025

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 154190 (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

Where does David Castillo practice?

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

What is the NPI number for David Castillo?

The National Provider Identifier (NPI) for David Castillo is 1275328015, 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 2025-04-11.