Budget?

I guess budget will basically narrow to certain medical card.

What kind of annual/lifetime limit you looking for?
As I see nowadays, some cards have very high annual limit but with restriction on kidney dialysis/cancer treatment whereas some cards with decent annual/lifetime limit but apply "reasonable and customary charges" for kidney dialysis/cancer treatment.
And some medical card can enroll into all kind of hospital as they don't practice "panel hospital" anymore. It will come handy especially during emergency.