I cannot believe your doctor's office charges $600 to complete a form. It sounds to me like they're confusing it with a FCE (functional capacity evaluation) that does usually take a minimum of four hours to evaluate you doing different things, like lifting, pushing, pulling, they evaluate your endurance. My dr told me that insurance usually doesn't cover it and it costs around $800 - $900 (my insurance covered it and I paid only a $25 co-pay).

Good luck!!
Nanc