First of all, welcome to the ANA Forums, mpdeem, and thank you for your first post!
I have no experience with Caresource, but I see that no one has responded yet to your post. But the information you learn will be crucial for others who may have Caresource later and are unsure of its coverage. My recommendation is that you let us know what you find out on January 16. In the meantime, try not to imagine the worst outcomes (Yes, I know that's easier said than done because fear drives us to think of all the terrible things it can be). A lot of people have dreaded something terrible, only to have it be something more minor. And, as you said, your hearing loss could have been from your ear drum perforation two decades ago. And tinnitus affects a lot of people, simply as they become older. But you are very smart in having it checked, just to make sure it is not something more serious. But try not to lose sleep over all the terrible possibilities. None of them may be real.
But if you find out that you do have an acoustic neuroma, first, be assured that many of us on these forums live fairly normal lives despite the diagnosis. We have challenges, for sure, but we have learned to appreciate life in ways that many others might not. Some might even say that, in some ways, our lives have even improved since developing the acoustic neuroma. Not everyone would say that, of course, but I have come to believe that there are a lot worse things I could have instead.
If you do have an acoustic neuroma, then I advise you to contact UC San Diego, House Clinic (if that is your first choice), and ask them if they accept Caresource. Their insurance specialist should be able to check that for you. And if House does not accept it, I am sure there are other reputable care centers that do. You might even check with the ANA Indianapolis user group. There might be someone else from Indiana who has Caresource coverage and could tell you where they went and what they did.
Again, thank you for posting! And best wishes on your journey!
Don