Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alma Nazreth Castillo

Behavior Technician in Cerritos, CA · enumerated 2018.

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

National Provider Identifier

1629561121

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Registry record

Entity type Individual (Type 1)

Name Alma Nazreth Castillo

Sex Female

Practice address 16410 Bloomfield Ave Ste B, Cerritos, CA, 90703

Phone (562) 760-4429

Enumeration date Jun 8, 2018

Last updated in NPPES Apr 11, 2019

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers · License F7447602 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1629561121 active?

Yes, as of the latest NPPES snapshot, NPI 1629561121 is active (record last updated 2019-04-11).

How do I verify Alma Castillo's NPI record?

Cross-check NPI 1629561121 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 2019-04-11.