I have to agree with the other reviewers. The medical staff is excellent, and would recommend them for the sleep study (I had an onsite study done). However, their billing practice is an absolute disaster! Bills show up months later. The last bill I wasn't even sure what it was for and they couldn't tell me. It was less than $100, so, I went ahead and paid to avoid the situation of the other posters. Luckily Im in a position I can do that. This would be a top notch group if they can get their admin procedures straightened out.