Hi Ameya,
I can understand how you are feeling. Sorry to say but American Rules are rubbish and especially when it comes to foriegners seeking immigration there.

For visa Screening,
1) If you go through FCCPT, than you need to pass your NPTE before applying for visa screening certificate.
2) If you select CGFNS, than you can get visa screen without NPTE (provided you pass your language requirements) but they have one condition, which is that if you get you degree after Dec 2003, than you should hold master degree in physiotherapy (mind you in physio, not in kinesiology, bio mechanics, rehab or physiology) in order to qualify for it.

Now decision is yours which pathway is most suitable for you.