Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexsa Nathalia Isariuz

Behavior Analyst in San Ramon, CA · enumerated 2017.

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

National Provider Identifier

1801313044

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Registry record

Entity type Individual (Type 1)

Name Alexsa Nathalia Isariuz

Sex Female

Practice address 2821 Crow Canyon Rd, San Ramon, CA, 94583

Phone (510) 999-4410

Enumeration date Aug 28, 2017

Last updated in NPPES Aug 28, 2017

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.

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Frequently asked questions

What specialty is Alexsa Isariuz?

Alexsa Isariuz 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-08-28.