Michael Ciampi in Portland, Maine has his reasons:

[T]he decision to do away with insurance allows Ciampi to practice medicine the way he sees fit, he said. Insurance companies no longer dictate how much he charges. He can offer discounts to patients struggling with their medical bills. He can make house calls.

Im freed up to do what I think is right for the patients, Ciampi said. If Im providing them a service that they value, they can pay me, and we cut the insurance out as the middleman and cut out a lot of the expense.”

Could be the start of something.