Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Anthony Trejo, CRNA

Certified Registered Nurse Anesthetist in Stanford, CA · enumerated 2023.

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

National Provider Identifier

1033891288

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Registry record

Entity type Individual (Type 1)

Name Anthony Trejo

Credential CRNA

Sex Male

Practice address Stanford, CA, 94305

Phone (650) 723-4000

Enumeration date Aug 7, 2023

Last updated in NPPES Jun 9, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 95002104 (CA) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

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

What is the NPI number for Anthony Trejo?

The National Provider Identifier (NPI) for Anthony Trejo is 1033891288, a Type 1 (individual) record in the CMS NPPES registry.

Where does Anthony Trejo practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-09.