Patient
Dr. Wu is excellent as is his office staff. After hours phone messaging is the worst I have ever experienced in 50 years of interacting with medical clinics. You should not expect to receive a call back period, timely or otherwise. There is no problem with calling when the office is open. That works as it should. If one needs medical advice after hours in a timely fashion, that person is in trouble. If not for that, I would rate them a five.