I don't know how your insurance works... maybe it's a huge problem.... but all of this sure makes me scratch my head. I think you're currently going to Dallas for medical attention? I can't imagine Dallas being anything less than as up to date as any other city, or state.
This next is NOT expertise because I have NONE... nor is it criticism because I have no idea regarding the competence of your current medical providers.... but to me this all sounds strange. To me it has the earmarks of advice based on $ rather than what's best for you... NOTE - I'm not trying to start something, and I have NO idea if that's the case... I'm just saying... I'd look into it. - JamesJM