Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ester Bui

Q: What is the NPI number for Ester Bui?

The National Provider Identifier (NPI) for Ester Bui is 1679250351, a Type 1 (individual) record in the CMS NPPES registry.

Case Manager/Care Coordinator in Garden Grove, CA · enumerated 2023.

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

National Provider Identifier

1679250351

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Registry record

Entity type Individual (Type 1)

Name Ester Bui

Sex Female

Practice address 12966 Euclid St Ste 495, Garden Grove, CA, 92840

Phone (714) 636-9095

Enumeration date Jul 3, 2023

Last updated in NPPES Jul 16, 2024

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other 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

Where does Ester Bui practice?

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

What is the NPI number for Ester Bui?

The National Provider Identifier (NPI) for Ester Bui is 1679250351, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-16.