I bought the Groupon on offer from this dentist for free teeth examination and tooth whitening. From the moment I stepped in the door the staff was hustling to try to get me back in for other services not covered by the Groupon. They even offered financing(!) for medically unnecessary braces. I submitted to their suggested cleaning (which I did need) and paid cash for the service.
I booked and then missed an appointment for the Groupon tooth whitening service. When I tried to reschedule, I told them upfront that it was my fault and I was willing to pay the missed appointment fee, usually between $25-$50 for pretty much every other medical office I have been to. I was told that they usually do not reschedule appointments, but especially for me they'll charge $125 in addition to the Groupon -- a $25 reduction from their regular missed appointment fee.
I don't recommend this office. It is more like buying a car with a pushy salesman constantly suggesting upgrades, and this is especially true if you don't have insurance or you're not prepared to get every treatment suggested by the doctor. They're looking to get people in only to find other ways to extract money from their wallets.