My wife has been in Dr. Davis's program since the first part of this year. We have Aetna and they required the 3 month program along with medical records from the last five years, a letter from her primary doctor, etc. Unfortunately, Dr. Davis's office has not been much help in this process. His office staff seems overwhelmed. Basically, my wife gathered all of the info they needed and gave it to them. They have botched the internal process every step of the way. Dr. Davis has changed office managers and other key employees at least once this year. The change didn't seem to help. They consistently assure my wife that things are being taken care of (like submitting the paperwork to Aetna for final approval) only to find out a couple of weeks later that they have done nothing. It's very disappointing that Aetna has chosen Dr. Davis as the only bariatric doctor in the Houston area. I am sure they wouldn't be happy with his performance if they knew. His whole program is very impersonal. The patients get treated like a number from day one. It seems that the entire goal of Dr. Davis's office is to process patients through the system (mental health visits, nutritionist visits, & all the other things required by insurance) in order to get them approved rather than really creating a program that educates the patient on what they need to know pre & post surgery. If you use Doctor Davis I believe he probably does a good job on the actual surgery but everything else about his practice is greatly lacking. You'll need to do your own research to equip yourself properly for the aftercare program. If my wife had a choice she would take her business elsewhere. Repeated calls to Dr. Davis's office to resolve these issues fall on deaf ears. It seems he doesn't really care if he has a disgruntled patient or loses one here & there. After all, he's got a line of 'em out the door waiting to get in. Its kind of like Wal-Mart losing a customer....so what, who cares? There's more where they came from.