Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Charles K. Oh, MD Inc

Organization Otolaryngology Physician · NPI 1437110327

Charles K. Oh, MD Inc is an Otolaryngology Physician in Tustin, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

2552 Walnut Avenue 130
Tustin, CA 92780
Phone: (714) 508-1600
Fax: (714) 665-8304
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence A83003 (CA)

Record details

NPI number1437110327
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Charles Oh — Provider · (714) 508-1600
NPI enumeratedMarch 30, 2006
Last updated in NPPESNovember 6, 2012
Mailing address2552 Walnut Avenue, 130, Tustin, CA 92780

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