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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DR. BRIAN J DUNCAN PH.D.
NPI 1356250575
Psychologist - Clinical in Tempe, AZ

Active since September 03, 2026
1405 E GUADALUPE RD, TEMPE, AZ 85283(480) 921-3314 Get Directions Write a Review

NPPES record added: September 3, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

About Dr. Brian J Duncan Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. BRIAN J DUNCAN PH.D. (NPI 1356250575) is an individual clinical provider in Tempe, Arizona, licensed in Arizona (PSY-006141) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1356250575
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. BRIAN J DUNCANCredential: PH.D.
Location Address1405 E GUADALUPE RDTempe, AZ 85283-3971
Mailing Address13254 E Larrea LnFlorence, AZ 85132-7754 · (909) 241-3716
Phone(480) 921-3314
Sole ProprietorYes
Enumeration DateSeptember 3, 2026
NPPES CertifiedSeptember 3, 2026
✔ NPI 1356250575 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in AZ · PSY-006141
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1405 E GUADALUPE RD, Tempe, AZ 85283
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ELIZABETH CAPPS-CONKLE PSY.D.
Psychologist
1405 E GUADALUPE RD
TEMPE, AZ 85283
Maricopa County (480) 921-3314
BUWALDA PSYCHOLOGICAL SERVICES
Community/Behavioral Health
1405 E GUADALUPE RD
TEMPE, AZ 85283
Maricopa County (480) 921-3314
KELLY RODRIGUEZ PSY.D.
Psychologist
1405 E GUADALUPE RD
TEMPE, AZ 85283
Maricopa County (480) 921-3314

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Brian Duncan's NPI number?

The NPI number for Brian Duncan is 1356250575. It was assigned to this individual provider in the NPPES registry on September 3, 2026.

Where is Brian Duncan located?

Brian Duncan practices at 1405 E Guadalupe Rd, Tempe, AZ 85283. The listed phone number is (480) 921-3314.

What is Brian Duncan's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Brian Duncan was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.