Yes, it occurs all over Pieria mnts. These are just south of Vermio.
I climbed from the ski center above the village of Elatochori (Ski center at 1450 m). Going in the direction from SE to NW I was at about 1800-1900 m. On the top of the mnts and facing N, Nw and NE the meadows were full of Crocus cvijicii.
Crocus veluchensis is also reported to occur in Pieria. I did not see it.