Google on "Medical Billing Advocate" . A number of the links there talk about advocates charging from 25% to 33% of the money saved by examining medical bills. One advocate spent 95 hours on saving her client about $25,000. At 25% of the savings, that's about $66 per hour. At 33% of the savings, that's about $87 per hour.
I wish there was a way to teach people how to choose the right insurance and to educate people REALISTICALLY what they can expect from insurance (and get paid for it). I can't tell you how many times I've heard "but I have good insurance" when the company doesn't pay.