I had an inguinal hernia several years ago. Gf took me to Ramathibodi Hospital, a teaching hospital. I spoke to a doctor who I was told was a professor of surgery. After being quoted 150,000 baht and telling him it was more than I wanted to pay he told me if I went through the teaching side it would be a maximum of 45,000 baht. Paid 50,000 baht up front, he performed the operation and after three days in hospital total cost was 26,400 baht. The balance was refunded. Only a couple of students came to see me, no inconvenience.