Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles D. Martinez, AU.D.

Audiologist in Los Angeles, CA · enumerated 2005.

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

National Provider Identifier

1528049657

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Registry record

Entity type Individual (Type 1)

Name Dr. Charles D. Martinez

Credential AU.D.

Sex Male

Practice address 11301 Wilshire Blvd, Audiology - 126, Los Angeles, CA, 90073

Phone (310) 268-3701

Fax (310) 268-4791

Enumeration date Nov 7, 2005

Last updated in NPPES Sep 30, 2008

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License AU931 (CA) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD 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

Where does Charles Martinez practice?

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

What is the NPI number for Charles Martinez?

The National Provider Identifier (NPI) for Charles Martinez is 1528049657, 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 2008-09-30.