Right now we are electronically submitting to Cigna, Aetna, Blue Cross, United Health Care to name a few of the big carriers. Of course, Medicare, Medi-Cal and Nevada Medicaid as well. We have not been asked to fax any supporting documentation for ground transports. Some of our rotary wing trips we have been asked to send documentation. Knock on wood....this has actually gone very smoothly for us.

Hope this helps.

Thanks
Mariruth