Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Georgette O'Brien

Mastectomy Fitter in Walnut Creek, CA · enumerated 2020.

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

National Provider Identifier

1548862378

Verified

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Registry record

Entity type Individual (Type 1)

Name Georgette O'Brien

Sex Female

Practice address 1220 Oakland Blvd Ste 100, Walnut Creek, CA, 94596

Phone (925) 939-2450

Fax (925) 930-7452

Enumeration date Nov 16, 2020

Last updated in NPPES Nov 16, 2020

Taxonomy & licenses

224900000X Mastectomy Fitter Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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 Georgette O'Brien?

The National Provider Identifier (NPI) for Georgette O'Brien is 1548862378, a Type 1 (individual) record in the CMS NPPES registry.

Where does Georgette O'Brien practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-11-16.