After eventually finding my medical records, it showed that my memory was disconcertingly way off and I'd had a check very recently.
However, as I've also been having nose issues which had taken me to Bangkok Pattaya, I decided it was worth seeing Prof. Parit Mekaroonkamol as recommended by Sheryl and others at Medpark Hospital, regardless.
He did feel that it was worthwhile having another gastroscopy despite being less that 2 years since the last, which had indicated a relatively small area and no dysplasia. I had that done only yesterday.
I will be hearing more and probably another consultation post biopsy in the next few weeks, but I did want to note that the the 16,500 cost is nowhere near the overall total. For a short consultation, the gastroscopy and pills for Heliobacter Pylori, to date I'm at 32,000B
I will say the hospital cost of pills was more extreme than I'd previously experienced. For example Amoxicillin 500mg x 56 was 1400B.
I will say Prof. Parit Mekaroonkamol is reassuringly knowledgeable and English is excellent.
I'll update further after results and subsequent visit(s).