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

Carlos Arguedas

Internal Medicine Physician in Los Alamitos, CA · enumerated 2006.

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

National Provider Identifier

1023075579

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Registry record

Entity type Individual (Type 1)

Name Carlos Arguedas

Sex Male

Practice address Los Alamitos, CA, 90720

Phone (562) 429-1200

Fax (562) 429-8070

Enumeration date Apr 27, 2006

Last updated in NPPES May 29, 2020

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A45750 (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 Carlos Arguedas practice?

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

What is the NPI number for Carlos Arguedas?

The National Provider Identifier (NPI) for Carlos Arguedas is 1023075579, 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 2020-05-29.