Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Aj Mattis MD Inc

Anatomic Pathology & Clinical Pathology Physician in Palmdale, CA · enumerated 2026 · authorized official Aidas Mattis, President.

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

National Provider Identifier

1952218653

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Registry record

Entity type Organization (Type 2)

Legal business name Aj Mattis MD Inc

Practice address 38600 Medical Center Dr, Palmdale, CA, 93551

Phone (818) 209-4430

Enumeration date Aug 26, 2026

Last updated in NPPES Aug 26, 2026

Taxonomy & classification

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Aidas Mattis

Title President

Phone (818) 209-4430

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-08-26. Verify at npiregistry.cms.hhs.gov.

Where is Aj Mattis MD Inc located?

The practice location on file with NPPES is in Palmdale, CA.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-26.