Depends on what you need. If you have a recent physical and your doc fills that out, and recent labs that are all of what Defy needs, then I imagine you just have to pay them and wait the 4 weeks or so they're booked up for.
I've seen Dr Saya mention it's about 4 weeks now amongst other patients who say that's what their wait is.
You can ask to be put on a cancellation list. I did that and got moved up 2 weeks as long as you can be flexible it works.
This is true, though it's a long and detailed training process, so will still be a bit before he'll be consulting for my patients. He's learning well thus far.
Johndoesmith's comments regarding timetable are pretty close.