The office staff employed by Dr Duong is inept at best. They had at minimum three opportunities to inform me that they were not a provider for my dental insurance after confirming verbally that they were a provider. They are now sticking me with a $1500 bill that I would not have to pay if I had gone to a network provider. Don't be as trusting as I was. The dental hygeniest was awful too, she did not numb me and I had to wait an additional 30 minutes because the dentist had to numb me correctly and then wait for it to take affect. Horrible experience!!