Dr Yoon always knows all of my information before stepping into the room and he knows a plan of what to do to improve my health. I have had so many improvements in my numbers since coming to Dr Yoon, I can't say enough about him!

I love having Dr Yoon for my doctor! He has helped me so much during my medical care.

Dr. Yoon is an excellent doctor. Extremely smart, explains everything well, you never feel rushed and he has a great demeanor. I am lucky to have him as a doctor on my health team.

Excellent physician

Dr Yoon is awesome!!

Dr Yoon is great as well as the staff at the Grafton office.

Dr. Yoon is always very punctual. He repeates directions several times. His print out of my visit is done in large print and is very explicit.Genuine caring man.

Excellent doctor!

Dr.Yoon is amazing! I always have a positive experience every visit!

Great doctor very knowledgeable