I have never visited a medical centre that doesn't need to wait. Good doctors spend time with patients and they are willing to communicate, therefore everyone has to wait as we want to talk and hear more during the consultations. I rather waiting than being rejected when call in for appointments. If everyone does not want to wait, then each doctor has to be rigid with the time or be restrictive on their attention given to each patient, like a production line. There are good and bad doctors in this Centre. Dr Mai is definitely one of the best, Dr Sandya is good too and Dr Richard Chang is good also.