David Preston

Primary specialty

Speech-Language AssistantTaxonomy code 2355S0801X

License

SLPA15205 Issued in AZ

Practice address

28682 N Main St
San Tan Valley, AZ 85143-6465

Phone

(480) 888-7500

NPI assigned

Apr 10, 2026

Last updated

Apr 10, 2026By the provider in NPPES

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

Other names 1

• Dave Duncan Preston Other name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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": "1740123298",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1882 S PAPAGO DR",
            "city": "APACHE JUNCTION",
            "state": "AZ",
            "postal_code": "851207589"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "28682 N MAIN ST",
            "city": "SAN TAN VALLEY",
            "state": "AZ",
            "postal_code": "851436465",
            "telephone_number": "480-888-7500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "460 S. Park St.",
            "address_purpose": "LOCATION",
            "city": "Florence",
            "state": "AZ",
            "postal_code": "85132",
            "country_code": "US",
            "telephone_number": "520-866-3540",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PRESTON",
        "first_name": "DAVID",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-04-10",
        "last_updated": "2026-04-10",
        "certification_date": "2026-04-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2355S0801X",
            "taxonomy_group": "",
            "desc": "Specialist/Technologist, Speech-Language Assistant",
            "state": "AZ",
            "license": "SLPA15205",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DAVE",
            "last_name": "PRESTON",
            "middle_name": "DUNCAN",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

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• Speech-Language Assistant in San Tan Valley, AZ
• Providers in San Tan Valley, AZ by specialty
• Speech-Language Assistant in Arizona

• 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.