South Texas Diagnostic Laboratories

Primary specialty

Clinical Medical LaboratoryTaxonomy code 291U00000X

Legal business name

SOUTH TEXAS DIAGNOSTIC LABORATORIES

Practice address

4400 Pecan Blvd
McAllen, TX 78501-3198

Phone

(956) 703-9078

NPI assigned

Jul 24, 2026

Organization subpart

No

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

Authorized official

Name

Mr. Luis Aaron Marquez

Title

Managing Partner

Phone

(956) 778-2254

Specialties & licenses 1

Addresses

Other names 1

• STDL Other name

Locations

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

{
    "created_epoch": "1784851200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1784851200000",
    "number": "1720909591",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5248 N BRYAN RD",
            "city": "PALMHURST",
            "state": "TX",
            "postal_code": "785733934",
            "telephone_number": "956-778-2254"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4400 PECAN BLVD",
            "city": "MCALLEN",
            "state": "TX",
            "postal_code": "785013198",
            "telephone_number": "956-703-9078"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "SOUTH TEXAS DIAGNOSTIC LABORATORIES",
        "organizational_subpart": "NO",
        "enumeration_date": "2026-07-24",
        "last_updated": "2026-07-24",
        "certification_date": "2026-07-24",
        "status": "A",
        "authorized_official_last_name": "MARQUEZ",
        "authorized_official_first_name": "LUIS",
        "authorized_official_middle_name": "AARON",
        "authorized_official_title_or_position": "MANAGING PARTNER",
        "authorized_official_telephone_number": "956-778-2254",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "291U00000X",
            "taxonomy_group": "",
            "desc": "Clinical Medical Laboratory",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "STDL",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• South Texas Clinic for Pain Management
• South Texas Clinic for Pain Management
• South Texas Clinic of Chiropractic
• South Texas Dentistry, PLLC
• South Texas Diabetes and Endocrine Clinic, P.a.
• South Texas Family and Urgent Care Clinic, PLLC
• South Texas Health System LLC
• South Texas Imaging Center K PA
• South Texas Infectious Diseases Consultants, P.a.
• South Texas Kidney Specialists, P.a.

• Clinical Medical Laboratory in McAllen, TX
• Providers in McAllen, TX by specialty
• Clinical Medical Laboratory in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 24, 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.