Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Abigail Yariss Guillen

Behavior Technician in Torrance, CA · enumerated 2024.

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

National Provider Identifier

1740011139

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Abigail Yariss Guillen

Sex Female

Practice address 2780 Skypark Dr Ste 410, Torrance, CA, 90505

Phone (310) 406-1500

Enumeration date Aug 8, 2024

Last updated in NPPES Aug 8, 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 1740011139 active?

Yes, as of the latest NPPES snapshot, NPI 1740011139 is active (record last updated 2024-08-08).

How do I verify Abigail Guillen's NPI record?

Cross-check NPI 1740011139 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-08.