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Otolaryngologist (ear, nose, throat)
16 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 (4)

The overall average patient rating of Dr. John Sun is Excellent. Dr. Sun has been reviewed by 17 patients who have provided 4 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 4.1
Courteous Staff 3.6
Accurate Diagnosis 4.6
Bedside Manner 4.7
Spends Time with Me 4.7
Follows Up After Visit 4.6

Specialties & Research

Dr. John Sun, MD is board certified in Otolaryngology.

Education & Awards

Dr. Sun graduated from Washington University at St. Louis, Saint Louis. He has 3 awards.

Castle Connolly's Top Doctors™ (2013)
Patients' Choice Award (2011, 2013)
Compassionate Doctor Recognition (2011, 2013 - 2014)


Dr. Sun has 13 hospital affiliations:

  • Anaheim Memorial Medical Center 
  • St. Joseph Hospital - Orange 


  • Spanish
  • Taiwanese
  • Mandarin
  • Chinese

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Additional Information
Dr. John C Sun MD is a male Otolaryngologist, has 16 years of experience and practices in Otolaryngology.
Where does Dr. John C. Sun practice?
Dr. John Sun has 1 office location.
Dr. John Sun practices Otolaryngology near Laguna Hills, CA.
See Laguna Hills Otolaryngologists.