Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alejandra Contreras

Behavior Technician in Dublin, CA · enumerated 2022.

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

National Provider Identifier

1154039857

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Registry record

Entity type Individual (Type 1)

Name Alejandra Contreras

Sex Female

Practice address 5601 Arnold Rd Ste 102, Dublin, CA, 94568

Phone (925) 248-9925

Enumeration date Nov 10, 2022

Last updated in NPPES Nov 10, 2022

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.

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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 Alejandra Contreras?

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

Other providers at this practice address

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Wai Kaung Behavior Technician · Dublin, CA NPI 1821568114 Stephanie Martinez Rodriguez School Counselor · Dublin, CA NPI 1518656909 Diana Marin Behavior Analyst · Dublin, CA NPI 1508550146 Reinya Gibson Behavior Technician · Dublin, CA NPI 1720863459 Kevisha Bivens Specialist · Dublin, CA NPI 1831976836 Laura Hezarjaribi Assistant Behavior Analyst · Dublin, CA NPI 1386515161

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-10.