Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Jack B. Oh, DDS A Professional Corporation

General Practice Dentistry in Diamond Bar, CA · enumerated 2008 · authorized official Jack Oh, President.

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

National Provider Identifier

1265603773

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Registry record

Entity type Organization (Type 2)

Legal business name Jack B. Oh, DDS A Professional Corporation

Practice address 2705 S Diamond Bar Blvd Ste 288, Diamond Bar, CA, 91765

Phone (909) 444-9400

Fax (909) 444-3311

Enumeration date Mar 12, 2008

Last updated in NPPES Apr 22, 2014

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 42205 (CA) Primary

Authorized official

Name Jack Oh

Title President

Phone (909) 444-9400

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-04-22. Verify at npiregistry.cms.hhs.gov.

Where is Jack B. Oh, DDS A Professional Corporation located?

The practice location on file with NPPES is in Diamond Bar, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-22.