I think we discussed the need for an insurance company database in a previous thread. Circumventing repetitive data entry is what databases do best, and it shouldn't be that hard to have one.
Alternatively, it would be nice if you could right-click in the insurance demographic fields and access templates of common insurance company data, but I have heard of practices with up to 200 third-party payors, so that could turn into a heckuva big template field.