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B Don Ahn MD Inc

Cardiovascular Disease Physician in Upland, CA · enumerated 2006 · authorized official Byung Ahn, Physician Owner.

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

National Provider Identifier

1942366992

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Registry record

Entity type Organization (Type 2)
Legal business name B Don Ahn MD Inc
Other name <Unavail>
Practice address 1382 E Foothill Blvd, Upland, CA, 91786
Phone (909) 982-6500
Fax (909) 920-0406
Enumeration date Dec 27, 2006
Last updated in NPPES Jul 19, 2013

Taxonomy & classification

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License A39266 (CA) Primary

Authorized official

Name Byung Ahn
Title Physician Owner
Phone (909) 982-6500

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.

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Frequently asked questions

Where is B Don Ahn MD Inc located?
The practice location on file with NPPES is in Upland, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-07-19. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-19.