This page furnishes links to insurance companies and to information relating to insurance and medical tourism/travel.
Since overseas treatment is more inexpensive than procedures performed in the U.S.,
some insurance companies will offer you incentives to seek medical care abroad. Talk to your insurance provider about this.
The blog of RMG, a European insurance boutique which is trying to offer insurance for medical tourists. This is a blog outlining their thinking.
Clements Worldwide--Clements Worldwide--
Clements basically specializes in insurance packages for medical tourism operators.
Compass Benefits--Compass Benefits--
Compass has insurance that will cover potential complications related to overseas medical treatment.