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Otolaryngologist, Allergist & Immunologist
20 years of experience
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Charles Oh, Otolaryngologist, Allergist & Immunologist is Excellent. Dr. Oh has been reviewed by 13 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 3.9
Courteous Staff 4.0
Accurate Diagnosis 4.9
Bedside Manner 4.5
Spends Time with Me 5.0
Follows Up After Visit 4.2

Specialties & Research

Dr. Charles Oh, MD is board certified in Otolaryngology.

  • He has special expertise in 5 areas:
  • Allergy
  • Asthma
  • Hay Fever (Seasonal Allergic Rhinitis)
  • Nasal Allergy (Rhinitis)
  • Sinus Infection (Sinusitis)

Education & Awards

Dr. Oh graduated from Cornell University, New York. He has 2 awards.

Patients' Choice Award (2011, 2014 - 2015)
Compassionate Doctor Recognition (2013 - 2015)


Dr. Oh has 4 hospital affiliations:

  • St. Joseph Hospital - Orange 
  • Los Alamitos Medical Center 


  • Spanish
  • Korean
  • French

> > > > Dr. Charles Oh, MD

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Additional Information
Dr. Charles Kyumin Oh MD is a male Allergist & Immunologist, has 20 years of experience and practices in Allergy & Immunology and Otolaryngology.
Where does Dr. Charles K. Oh practice?
Dr. Charles Oh has 1 office location.
Dr. Charles Oh practices Allergy & Immunology and Otolaryngology near Tustin, CA.
See Tustin Allergists and Tustin Otolaryngologists.