86 reviews of Kevin Khai Tieu, MD "I just can't believe there isn't any rating for Dr. Tieu in yelp. He is the BEST doctor I have ever met. He has the best bedside manner and he is very competent at what he does. I used to be seen by HOAG women's obgyn group in Irvine. Since I live in Irvine, it was really convenient. I have been seen by this MD for 5 years until I decided to switch to Dr. Tieu..