Kaiser Surgery Questions

Hi all! 

I have been a lurker for years- however now thanks to Obamacare I finally have an insurance who will pay for my bariatric surgery. I am 26, female and have sleep apnea- as well as weigh about 375lbs. I am highly interested in getting a VSG- it is something I have been pursuing for at least the last 7 years.  I am meeting with my primary care doctor thru Kaiser for the first time on Wednesday (2/4) but I have a few questions for you guys-

1)What kind of weight loss programs do the doctors have you do? I have taken phentermine in the past but it was not for very long. 

2) Does Kaiser in the Northern VA area have their own surgeons? I read they may be contracted out to other (Non-network) doctors. If this is the case- I still only have to do my standard copays correct? 

3) Any other tips,experiences with Kaiser?