Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexia Castillo

Behavior Technician in El Dorado Hills, CA · enumerated 2024.

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

National Provider Identifier

1487478558

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Registry record

Entity type Individual (Type 1)

Name Alexia Castillo

Sex Female

Practice address 4980 Hillsdale Cir Ste A, El Dorado Hills, CA, 95762

Phone (916) 693-6469

Enumeration date Nov 14, 2024

Last updated in NPPES Nov 14, 2024

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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 Alexia Castillo?

The National Provider Identifier (NPI) for Alexia Castillo is 1487478558, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexia Castillo practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-14.