Steven Anthony Nastasio Jr., RN

Primary specialty

Critical Care Medicine Registered NurseTaxonomy code 163WC0200X

License

220711 Issued in AZ

Practice address

1400 S Dobson Rd
Mesa, AZ 85202-4707

Phone

(480) 412-3350

NPI assigned

Jun 6, 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

Medicare enrollment (NPD)

Not enrolled

Credentials

Registered Nurse

State licenses

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

{
    "created_epoch": "1780704000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780704000000",
    "number": "1407789654",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "706 N HORNE",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852036338",
            "telephone_number": "480-412-3350"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1400 S DOBSON RD",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852024707",
            "telephone_number": "480-412-3350"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NASTASIO",
        "first_name": "STEVEN",
        "middle_name": "ANTHONY",
        "name_prefix": "Mr.",
        "name_suffix": "Jr.",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-06-06",
        "last_updated": "2026-06-06",
        "certification_date": "2026-06-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163WC0200X",
            "taxonomy_group": "",
            "desc": "Registered Nurse, Critical Care Medicine",
            "state": "AZ",
            "license": "220711",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Critical Care Medicine Registered Nurse in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Critical Care Medicine Registered Nurse in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 6, 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.