Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Areysy Guerrero

Behavior Analyst in Irvine, CA · enumerated 2018.

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

National Provider Identifier

1043794977

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Areysy Guerrero

Sex Female

Practice address 106 Discovery, Irvine, CA, 92618

Phone (949) 203-8872

Enumeration date Sep 17, 2018

Last updated in NPPES Sep 17, 2018

Taxonomy & licenses

103K00000X Behavior Analyst 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 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 Areysy Guerrero?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-17.