there is a project call HMS(Health Mutual Society), it's now very popular in China.
HMS  intends to offer affordable healthcare coverage by separating the medical cost among members by reconstructing the trust system, HMS will overturn the existing mutual market by Blockchain technology.
The dev team of HMS already made a successful project which has 8 million members in China, now, HMS is the revision 2.0 and it's target on the global market.
If you want to know more details, here is the link: http://hms.io/