If you put Angiologists into Yellow Pages you don't get any
hits on Crete at all and only 32 in the whole of Greece. If you put in Vascular Surgeons
you only get three in Chania so it looks like there is not a lot of choice. Yellow pages also lists one for Rethymnon
and nine for Heraklion
. I'm not sure if that helps?
You could try contacting Iasis clinic
in Chania, explaining the problem and asking if they have a suitable specialist. If they don't have their own they usually have a private specialist they cooperate with and, based on my experience, they are usually very good.