Orange County Ear, Nose and Throat Associates is a well-established medical group practice of board-certified Otolaryngologists. The physicians and support staff provide exceptional care and treatment in all aspects of Otolaryngology to the patients in Orange County. The practice was originally formed by Drs. John Sun, Christopher Yian, and Paul Sun in 2002. These doctors had the privilege of training with one another at the prestigious Washington University in St. Louis, which is one of the highest ranked training programs in Otolaryngology in the United States.

The mission at Orange County Ear, Nose and Throat Associates is to provide an all-inclusive medical and surgical Otolaryngologic service to the patients in an atmosphere that is professional yet personal. Patient satisfaction is their constant goal as they strive to maintain a practice with services that are relevant to the needs of the patients in this constantly changing health care environment.

Specializing In

Head & Neck Oncology and Surgery

Thyroid and Parathyroid Surgery

Pediatric Ear, Nose and Throat

Ear Micro Surgery

Vestibular Disorders


Laryngology and Voice Disorders

Allergy and Sinus Disorders

Facial Reconstruction and Plastic Surgery

Sleep Apnea