John Sun, MD

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22 Odyssey Ste 100
Irvine, CA 92618

Orange County Ear, Nose and Throat Associates is a reputable medical group practice led by board-certified Otolaryngologists, offering comprehensive care in Orange County. Founded in 2002 by Drs. John Sun, Christopher Yian, and Paul Sun, who trained together at Washington University in St. Louis, a distinguished Otolaryngology program.

With a commitment to providing top-notch medical and surgical Otolaryngologic services in a professional yet personal environment, the practice prioritizes patient satisfaction. Specializing in various areas including Head & Neck Oncology, Pediatric Ear, Nose and Throat, and Audiology, they cater to the diverse needs of their patients while maintaining hospital affiliations with esteemed institutions like Saddleback Memorial and Hoag Hospital.

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Reviews

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3.053 reviews
S O.
7/17/2025

I had blockage in my left sinus for over a year. Dr.Sun did bilateral endoscopic sinus surgery and now my left sinus is completely clear. Dr.Sun changed my life and I'll forver be thankful for how...

Adriana R.
3/24/2025

2 years ago I saw Dr Sun with c/o a lump on my cheek, he barely examined me and said it was nothing and it would resolve spontaneously. 6 months later I went back with pain and lumps on my neck,...

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Lissie W.
9/21/2024

Highly not recommended. Questionable staff experience. Save yourself the trouble and look for another ENT. Yikes

Brian O.
11/26/2024

I visited Dr. Sun as I have ringing in my ears. He barely did an examination, said there was "absolutely" nothing he could do and proceeded to tell me to take some vitamins, essentially. Over in...

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Chips L.
2/23/2024

Went to see this doc on 2021 and like what others have mentioned. Went in for a 'chat' and kept telling Dr, I have vertigo issues but nothing was being done or diagnose at all. Dr look at me and...

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