There is a "find a doctor" resource on the offical lapband website.
Find a Surgeon - LAP-BAND®
Put in your zip code and how far you want to travel. Then, when you have your list, start researching them to find one that not only takes your insurance but also has recommendations on here.
I also want to add that I think the nutritional meeting set by your PCP may have been the start of your INSURANCE REQUIRED counseling. Most insurance requires you to participate in some counseling prior to approval.
The lapband takes a lot of aftercare. You need to make your appointments. If your doctor wants you to do the counseling, you need to do it. Not trying to finger wag, but so many people focus on the surgery and ignore their need to change their habits. Making your appointments is going to be a habit you need to keep.