Dr. Mao is amazing. My gum surgery was as painless as possible, and he and his assitant, Callie made sure I was as comfortable as possible thorughout the entire experience. The whole surgery went off without a hitch-and here's the best part: he called me, personally, the same night to make sure I was okay. Never had that happen, and I have to say, it impressed me. His office staff is wonderful, I'd only been there one time before and they remembered my name. Everyone was exceptionally helpful and professional, I highly recommend them.