Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Carlos Guerrero, PA-C
Physician Assistant in Tustin, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023026523
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Registry record
Entity type Individual (Type 1)
Name Mr. Carlos Guerrero
Credential PA-C
Sex Male
Practice address 661 W 1st St Ste G, Tustin, CA, 92780
Phone (714) 665-9890
Fax (714) 665-9891
Enumeration date Aug 3, 2006
Last updated in NPPES Nov 20, 2023
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA14967 (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.
Frequently asked questions
Is NPI 1023026523 active?
Yes, as of the latest NPPES snapshot, NPI 1023026523 is active (record last updated 2023-11-20).
How do I verify Carlos Guerrero's NPI record?
Cross-check NPI 1023026523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-20.