Looking for recommendations to have procedures done In Pattaya 

Moved to the Health forum as this was posted in the "Too Fat" forum presumably by mistake.

 

You will have to see a doctor first to get a colonoscopy ordered.  See a GI specialist at any of these hospitals (listed in alphabetical order)

 

in Pattaya itself:

Bangkok Pattaya Hospital  https://www.bangkokpattayahospital.com/shop/en/gastroscopy-colonoscopy-en

Pattaya International Hospital  https://www.pattayainterhospital.com/allstars.php

Pattaya Memorial Hospital   http://www.pattayamemorial.com/ShowContent.aspx?id=300054

 

A short distance from Pattaya:

Phyathai Sri Racha Hospital   http://www.phyathai-sriracha.com/pytsweb_eng/index.php?page=menupage/menu-foreign

Queen Sirikit Naval Hospital in Sattahip (government hospital - expect long waits but will be inexpensive)

Samitivej Sri Racha Hospital  https://www.samitivejhospitals.com/sriracha/