The medical facilities in major cities in Thailand are outstanding. Hospitals are good and especially the private clinics especially for Europeans sometimes feels like hotel quality service.
Becausse of this medical tourism has even begun. Thinking, for example cosmetic cirurgie that is not covered by your insurance as an upper blepharoplasty you pay into one of the better clinics 18,000 THB for roughly 400 euros.
A good example of such a clinic is the Yanhee International Hospital in Bangkok, it has a good website where you can ask questions through a chat. There is a clear price list, so you can see in advance what the costs are.
454 Charansanitwong Road, Bang-O Bangplad, Bangkok 10700 Thailand
Contact: +66 2 879 0300
In Chiang Rai course hospitals, Overbrook Hospital is a good example of it