30 pages? Yikes. My tendency would be to fill out the reasonably necessary and tell her you'll fill in the rest of the information during sessions down the road as the information becomes necessary. The credit card information? No way. I routinely refuse to give social security information, for instance, to doctors and schools. They either (a) have no need for it because billing is handled through an insurance number, or (b) were given that information years ago, it's on file somewhere, and there is no reason for it to be written on unsecure documents.

If this therapist can't see her way past a client's need for privacy and security, move on to the next candidate on the list.