Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alicia Lavoisin Castro

Behavior Technician in Petaluma, CA · enumerated 2024.

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

National Provider Identifier

1851136493

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Registry record

Entity type Individual (Type 1)

Name Alicia Lavoisin Castro

Sex Female

Practice address 1425 N Mcdowell Blvd Ste 206, Petaluma, CA, 94954

Phone (855) 223-7123

Enumeration date Jun 26, 2024

Last updated in NPPES Jun 26, 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1851136493 active?

Yes, as of the latest NPPES snapshot, NPI 1851136493 is active (record last updated 2024-06-26).

How do I verify Alicia Castro's NPI record?

Cross-check NPI 1851136493 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-26.