Insurance Question

I wanted to know if anyone in the NYC area has HIP {Prime} if so what was your experiance with them getting apporved for your surgery. I am having my firt consult next week with the surgeon and if there is anything I should do in order to help me get approved faster I would like to start working on it now. I am so determined to have this surgery I just dont want anything to mess up or hold me back. Any suggestions would be greatly appreciated even if you dont have HIP but can direct me in the right direction for approval would be great also. Thanks for listening. Sophia