John Alexander Guardiola, MD

Primary specialty

Student in an Organized Health Care Education/Training ProgramTaxonomy code 390200000X

Practice address

12800 Corporate Hill Dr
Saint Louis, MO 63131-1845

Phone

(314) 617-3751

NPI assigned

Apr 10, 2026

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1775779200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775779200000",
    "number": "1821931403",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4901 N MESA ST APT 4105",
            "city": "EL PASO",
            "state": "TX",
            "postal_code": "799125942",
            "telephone_number": "210-915-1940"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12800 CORPORATE HILL DR",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631311845",
            "telephone_number": "314-617-3751"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5001 El Paso Dr",
            "address_purpose": "LOCATION",
            "city": "El Paso",
            "state": "TX",
            "postal_code": "799052827",
            "country_code": "US",
            "telephone_number": "915-215-4360",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GUARDIOLA",
        "first_name": "JOHN",
        "middle_name": "ALEXANDER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-04-10",
        "last_updated": "2026-04-10",
        "certification_date": "2026-04-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• John Gualdoni, MSW
• Amy Guan, MS, APN
• Guarantee Home Health LLC
• Guardian Angel Health Care, Inc
• Guardian Homecare LLC
• Martha Grace Guariglia
• Geneva Enriquez Guarin, MD
• Christian Guay, MD
• Samuel Arthur Gubbins
• Andrew Joseph Gucciardo, NP

• Student in an Organized Health Care Education/Training Program in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Student in an Organized Health Care Education/Training Program in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 10, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.