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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 (3)

The overall average patient rating of Dr. John Sun is Excellent. Dr. Sun has been reviewed by 11 patients who have provided 3 comments. The rating is 4 out of 4 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 3.3
Courteous Staff 3.1
Accurate Diagnosis 3.7
Bedside Manner 3.9
Spends Time with Me 3.9
Follows Up After Visit 3.7

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)


Dr. Sun has 13 hospital affiliations:

  • Long Beach Memorial Medical Center 
  • St. Joseph Hospital - Orange 


  • Spanish
  • Mandarin
  • Taiwanese
  • 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 4 office locations.
Dr. John Sun practices Otolaryngology near Laguna Hills, CA.
Additional practice locations include: Mission Viejo, CA.
See Laguna Hills Otolaryngologists.