My son has been going to Dr. Cheng ever since he was born, he will now be 5yrs old. What I do like about this Dr. is that after a appt. him self or one of his nurses calls the home to check up on your child, their pretty open when it comes to schedule appts. He is alittle hard too understand sometimes...lol but he's a very nice doctor, & another plus is...lets just say his office is "unique" so the kids get a kick off of that since he takes you into his office after every appt. =]