Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aileen Diann Castro

Behavior Technician in Torrance, CA · enumerated 2024.

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

National Provider Identifier

1518716869

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Registry record

Entity type Individual (Type 1)

Name Aileen Diann Castro

Sex Female

Practice address 23740 Hawthorne Blvd Ste 104, Torrance, CA, 90505

Phone (855) 223-7123

Enumeration date May 17, 2024

Last updated in NPPES May 17, 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Aileen Castro?

Aileen Castro is registered in NPPES with the primary taxonomy of Behavior Technician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-17.