MMSI insurance?

 Hi everyone. I am new to the forums. I have been considering WLS for a few years now, but know that now is the time I need to take action. My weight seems to keep increasing year after year and it is getting to a point where I am uncomfortable or in pain every day due to some problem. 

My husband just started a job with the Mayo Health System in MN (not the Rochester Mayo Clinic, we are in Southern MN). All I know so far is that the insurance will start on June 1 and is through MMSI - SWMR (?) plan. Does anyone else have this insurance? I am hoping they cover WLS without crazy expectations. 

Also, throughout the years, I have seen endocrinologists, behavior modification specialists, dieticians, etc....but my BMI during that time was probably just in the overweight category, and not obese. Will those attempts at weight loss still be seen as applicable to an insurance company, even though I was not obese at the time?

Thanks for any help!!!