That depends entirely on your surgeon's office!
My pre-op was actually done via phone and was just to ensure that I was ready for surgery that week.
My initial consult was 2 hours; I met with the physician assistant who confirmed that I was eligible for weight loss surgery and gave me an overview of the surgeries that office performed. I then met with the surgeon to do another overview of surgeries, and discuss my thoughts about what I was looking for and their reasonableness. I then met with the PA again who gave me referrals for pre-op testing (gall bladder ultrasound, labs, psych eval, nutritionist visits, and sleep test if I needed it).
Those were really all I had to do in that office. I did need to attend at least one support group pre-op (I did 4, I chose to schedule my surgery a bit farther out because of scheduling issues at work), and I did meet with the nutritionist 2 or 3 times, as well as a lot of communication via email, but the surgeon's office was a breeze.
Circumferential LBL, anchor TT, BL/BR, brachioplasty 12-16-10 Drs. Howard and Gutowski
Thigh lift 3-24-11, Drs. Howard and Gutowski again!
Height 5' 5". Start point 254. DH's goal: 154. My guess: 144. Insurance goal: 134. Currently bouncing around 130-135.