NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hana T. Bui, MD, A Professional Corporation

Otology & Neurotology Physician in Fullerton, CA · enumerated 2007 · authorized official Hana Bui, President.

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

National Provider Identifier

1932253960

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Hana T. Bui, MD, A Professional Corporation
Practice address 1321 N Harbor Blvd Ste 101, Fullerton, CA, 92835
Phone (714) 870-4822
Fax (714) 870-4804
Enumeration date Jan 23, 2007
Last updated in NPPES Jan 21, 2010

Taxonomy & classification

207YX0901X Otology & Neurotology Physician Allopathic & Osteopathic Physicians · License G064344 (CA) Primary

Authorized official

Name Hana Bui
Title President
Phone (714) 870-4822

Other identifiers

Identifier Type State Issuer
WG64344G Other CA PPIN NUMBER

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 Hana T. Bui, MD, A Professional Corporation?
The NPI for Hana T. Bui, MD, A Professional Corporation is 1932253960, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Hana T. Bui, MD, A Professional Corporation?
NPPES lists Hana Bui (President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-21.