Thailand, well Bangkok, is really not off the medical track. Bumrungrad is one of the best hospitals in the world.

As for Croatia vs. Greece ... very different scenery and different feeling from the people. I prefer Greece, but certainly had a wonderful time in Croatia.

Here's a trip report from my 2004 Croatia trip.
http://www.flyertalk.com/forum/showthread.php?t=333512
And here's a link to about 35 photos from the trip. (You may have to refresh to get them to load fully.)
https://home.comcast.net/~rodhooper/Croatia%202004.htm