There are two railway stations in Venice:
Mestre and Venice Santa Lucia.

The Blue Hall (SALA BLU) is the reference point for disabled customers where the assistance service is organised and coordinated the assistance circuit in 251 stations nationwide. 
The Sala Blu phone number in the Venezia Santa Lucia and Mestre railway station is 041 78 55 70 from 7 am to 9 pm.