David O Joslyn, PSY.D.

Primary specialty

Clinical PsychologistTaxonomy code 103TC0700X

License

PSY-005158 Issued in AZ

Practice address

3048 E Baseline Rd Ste 118
Mesa, AZ 85204-7288

Phone

(623) 260-1320

NPI assigned

Nov 2, 2026

Last updated

Nov 2, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

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

{
    "created_epoch": "1793577600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1793577600000",
    "number": "1508765090",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6031 E HALIFAX ST",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852054508",
            "telephone_number": "941-773-9300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3048 E BASELINE RD STE 118",
            "city": "MESA",
            "state": "AZ",
            "postal_code": "852047288",
            "telephone_number": "623-260-1320"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOSLYN",
        "first_name": "DAVID",
        "middle_name": "O",
        "name_prefix": "Dr.",
        "credential": "PSY.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-11-02",
        "last_updated": "2026-11-02",
        "certification_date": "2026-11-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "AZ",
            "license": "PSY-005158",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Clinical Psychologist in Mesa, AZ
• Providers in Mesa, AZ by specialty
• Clinical Psychologist in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.