Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katherine O'Brien

Occupational Therapist in Gilbert, AZ · enumerated 2020.

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

National Provider Identifier

1831729714

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Katherine O'Brien

Sex Female

Practice address 4535 E Laurel Ave, Gilbert, AZ, 85234

Phone (480) 456-5022

Enumeration date Jan 20, 2020

Last updated in NPPES Jan 20, 2020

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License OTH-007291 (AZ) Primary

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 Katherine O'Brien?

The National Provider Identifier (NPI) for Katherine O'Brien is 1831729714, a Type 1 (individual) record in the CMS NPPES registry.

Where does Katherine O'Brien practice?

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

Other providers at this practice address

Browse all →

Collette Stockton Occupational Therapist · Gilbert, AZ NPI 1326678764

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-20.