Recommendation for cardiac stress test in Bangkok

I am planning to join a new fitness class that consists mostly of high-interval intensity training.

Now I was thinking that it might be a good idea to take a cardiac stress test first.
Of course I am not sure if that is necessary.

So I was looking for recommendations for hospitals doing this kind of check-up for a reasonable price.

I have done one a couple of years ago. That was at the Bangkok Christian Hospital in Patpong if I remember correctly.
I think it cost about 4.000 baht.

Any other recommendations or input?