Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Adair Payan

Behavior Analyst in Chula Vista, CA · enumerated 2021.

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

National Provider Identifier

1811575400

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Registry record

Entity type Individual (Type 1)

Name Adair Payan

Sex Male

Practice address 310 3rd Ave Ste B8, Chula Vista, CA, 91910

Phone (855) 223-7123

Fax (619) 374-7134

Enumeration date Apr 1, 2021

Last updated in NPPES Feb 4, 2026

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-24-75189 (CA) Primary

106S00000X Behavior Technician Behavioral Health & Social Service Providers Secondary

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

How do I verify Adair Payan's NPI record?

Cross-check NPI 1811575400 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1811575400 active?

Yes, as of the latest NPPES snapshot, NPI 1811575400 is active (record last updated 2026-02-04).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-04.