Hey Maven its me again...
I have a pharmacy background and I can tell you this. Some insurance companies are really picky. When I used to fill prescriptions where I worked, sometimes the insurance would send me a rejected claim saying 'provider not covered'; it was rare but it did happen. If that is the case, you can always try generic Adderall (that's what I use and it totally works).

If you have a Costco or a Sam's near you, they have the cheapest generic drug prices! Hope this helps!