One of the few places that will give you a quote for medical services. They've been around since the 1990s.
http://surgerycenterok.com/ .
There's an interesting interview on YouTube with one of their Doctors that explains the crazy health care system in the United States:
https://www.youtube.com/watch?v=L2l1M6JdeV8It's on a YouTube channel about cryptocurrency, but the interview doesn't talk about that aspect very much (other than the fact that they accept Bitcoin).
Dr. Smith also helped start
http://marketmedicine.org/ to create a network of providers interested in enhancing free-market medicine.