Individual provider Active NPI

Brian J Duncan, PH.D.

  • Clinical Psychologist
  • Tempe, AZ
National Provider Identifier
1356250575
Registry record updated Sep 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
PSY-006141 Issued in AZ
Practice address
1405 E Guadalupe Rd
Tempe, AZ 85283-3971
Phone
(480) 921-3314
NPI assigned
Sep 3, 2026
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 3, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical PsychologistGroup: 193200000X MULTI-SPECIALTY GROUP 103TC0700X PSY-006141 AZ Primary

Addresses

Primary practice location

1405 E Guadalupe Rd
Tempe, AZ 85283-3971

Mailing address

13254 E Larrea LN
Florence, AZ 85132-7754
Phone (909) 241-3716

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

NPI Registry JSON

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

{
    "created_epoch": "1788393600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788393600000",
    "number": "1356250575",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "13254 E LARREA LN",
            "city": "FLORENCE",
            "state": "AZ",
            "postal_code": "851327754",
            "telephone_number": "909-241-3716"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1405 E GUADALUPE RD",
            "city": "TEMPE",
            "state": "AZ",
            "postal_code": "852833971",
            "telephone_number": "480-921-3314"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUNCAN",
        "first_name": "BRIAN",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-09-03",
        "last_updated": "2026-09-03",
        "certification_date": "2026-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TC0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychologist, Clinical",
            "state": "AZ",
            "license": "PSY-006141",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tempe, AZ

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.