Dr John S Yun, DMD

Dr. Yun is quite courteous, pleasant and professional, but their billing practice is a bit error-​prone. Please make sure you check your statements. They double billed me for an exam service to both my insurance and also out of my pocket.

Dr. Yun is an amazing periodontist. I’ve been to several dentists and specialists and most of them are just there to do their jobs as quickly as possible. They tend to inadequately inform you of why you need the procedures they want to perform and which option is best for you. They usually have an assistant perform x-​rays on you, have you wait in a chair, come look at x-​rays, tell you that you need a procedure, then leave and have another assistant come in and tell you to pick an option based on what you can afford.
During my visit, I felt like Dr. Yun actually wanted use his knowledge and skills to help me, instead of just being there to make money. He was extremely informative, explained exactly what was wrong, and why I needed the procedures in a way that I could clearly understand. His assistants and receptionists were very pleasant and helpful as well, instead of the typical medical/​dental receptionists who coldly tell you to fill out paperwork and wait until your name is called. During the actual procedure, he made sure I was comfortable every step of the way, made small talk help time pass, and showed me what he was doing and what the problems looked like under the gums.
In addition, the prices at this clinic (and his other clinic in Diamond Bar) are extremely competitive. I had originally gone to a specialist up in Santa Barbara at Gentle Dental, who was the epitome of the usual traits found in oral care specialists I listed in the first paragraph. They had quoted my gum flap surgery at over $ 20,000. I was able to get the same procedure plus bone grafts from Dr. Yun for considerably less.
I highly recommend Dr. Yun for anyone who is in need of a periodontist! I can’t imagine going to anyone else from now on (although, hopefully I’ll never have to see a periodontist ever again!)