Organization Active NPI

Aj Mattis MD Inc

  • Anatomic Pathology & Clinical Pathology Physician
  • Palmdale, CA
National Provider Identifier
1952218653
Registry record updated Sep 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X
Legal business name
AJ MATTIS MD INC
Practice address
38600 Medical Center Dr
Palmdale, CA 93551-4483
Phone
(818) 209-4430
NPI assigned
Aug 26, 2026
Last updated
Sep 29, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 29, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Dr. Aidas Joseph Mattis, MD, PHDNPI 1558817817
Title
President
Phone
(800) 288-8325

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X NU Primary

Addresses

Primary practice location

38600 Medical Center Dr
Palmdale, CA 93551-4483

Mailing address

1132 Lavender LN
La Canada, CA 91011-2339
Phone (818) 209-4430

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1787702400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1790640000000",
    "number": "1952218653",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1132 LAVENDER LN",
            "city": "LA CANADA",
            "state": "CA",
            "postal_code": "910112339",
            "telephone_number": "818-209-4430"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "38600 MEDICAL CENTER DR",
            "city": "PALMDALE",
            "state": "CA",
            "postal_code": "935514483",
            "telephone_number": "818-209-4430"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "AJ MATTIS MD INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-08-26",
        "last_updated": "2026-09-29",
        "certification_date": "2026-09-29",
        "status": "A",
        "authorized_official_last_name": "MATTIS",
        "authorized_official_first_name": "AIDAS",
        "authorized_official_middle_name": "JOSEPH",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "800-288-8325",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD, PHD"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Palmdale, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.