Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Richard Brennan III, PH.D.

School Psychologist in Tucson, AZ · enumerated 2006 · practices at Flowing Wells Unified School District.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1215027594

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Registry record

Entity type Individual (Type 1)

Name Dr. Joseph Richard Brennan III

Credential PH.D.

Sex Male

Practice address 1450 W Prince Rd, Tucson, AZ, 85705

Phone (520) 696-8852

Enumeration date Oct 15, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TS0200X School Psychologist Behavioral Health & Social Service Providers Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
566218	Medicaid	AZ	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Joseph Brennan?

The National Provider Identifier (NPI) for Joseph Brennan is 1215027594, a Type 1 (individual) record in the CMS NPPES registry.

Where does Joseph Brennan practice?

The practice location on file with NPPES is in Tucson, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.