Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jeffrey Robert Chavez, PA-C

Physician Assistant in Antioch, CA · enumerated 2020.

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

National Provider Identifier

1023644507

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Registry record

Entity type Individual (Type 1)

Name Jeffrey Robert Chavez

Credential PA-C

Sex Male

Practice address 4501 Sand Creek Rd, Antioch, CA, 94531

Phone (925) 389-7719

Enumeration date Mar 17, 2020

Last updated in NPPES Dec 30, 2021

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 57746 (CA) 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 Jeffrey Chavez practice?

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

What is the NPI number for Jeffrey Chavez?

The National Provider Identifier (NPI) for Jeffrey Chavez is 1023644507, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-30.