Dr Yen is great! He is very knowledgeable in his field and does a great job in listening to what is bothering you and explains what is going on and what he is doing to help fix it. He is very attentive to his patients focusing on not only the part of the body that is bothering you but you whole body as well. The price is great it is a flat rate of $25 or there is a package you can get, just ask the receptionist, all staff is very friendly. I highly recommend dr yen if you are having back or neck problems or even if it's just a simple adjustment.