Pasted from my post in another thread,
Did the OGUK Medical at Bumrungrad Bangkok the other day. Cost 8115 Baht.
Best to make an appointment, but if you don’t, can just turn up 6 days a week Mon-Sat. Arrive before 10am so you can get it same day, as Doc finishes clinic at 1pm.
Registration at 10th floor of "International Clinic", then up to 16th Floor to Station D and tell you want to do a Oil & Gas UK Medical with Dr. Vatana.
Medical involves; Eyes, blood press, BMI, Doc check-up & form filling, chest x-ray, lung-function, audio, urine tests.
Staff all courteous, speak English and take you from lab test to test. Excellent modern and efficient hospital.
About 2 hours from registration (bring passport) to cert.