>I recently discovered that Asians that exhibit "Asian Flush" when drinking are at a higher risk of alcohol related cancers. When I told my doctor this he said "oh wow, did not know that".

Honestly these sorts of studies are a dime a dozen and in most cases aren't repeatable. You can find a study on pretty much anything from soup to nuts that says it causes cancer. Many positions in academia require a constant stream of publications that results in bad experimental design & p-hacking. In fact it's estimated that almost 50% of all published research is wrong.

If you're happy with your current care provided by your doctor I wouldn't worry about it.