Active NPI
Brian J Duncan, PH.D.
- Clinical Psychologist
- Tempe, AZ
National Provider Identifier
1356250575
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- PSY-006141
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 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.