Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Santos

Behavior Analyst in Watsonville, CA · enumerated 2020.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1780289009

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Registry record

Entity type Individual (Type 1)

Name Alexandra Santos

Sex Female

Practice address 21 Brennan St, Watsonville, CA, 95076

Phone (831) 687-8206

Enumeration date Dec 3, 2020

Last updated in NPPES Feb 5, 2026

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

Where does Alexandra Santos practice?

The practice location on file with NPPES is in Watsonville, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alexandra Santos?

The National Provider Identifier (NPI) for Alexandra Santos is 1780289009, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Robert Letamendi Adult Medicine Physician · Watsonville, CA NPI 1356341671 James Greenwood Family Medicine Physician · Watsonville, CA NPI 1477589281

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-02-05.