This dentist Dr. Peter Ngo usually come to work late in the morning and his mother is the receptionist sometime. His mom is very aggressive and they often have arguements = not professional. So you will have to wait a while to see the dentists. He complains that he works too much and no vacation. He pushed me many times to get my old fillings replaced to upsell to make more $$. Later on I found out the fillings are not necessary!