Way back in 2003, the hospital has sent a BAA to any vendor the hospital did business with, whether BAA is applicable or not (i.e., an Air Ambulance company, which doesn’t need a BAA as it provides patient care). With this, do we still need to send a termination letter even though it wasn’t needed to begin with?
_{January 17, 2018}

A formal BAA termination is not necessarily required.

However, it is suggested to send out a letter to that entity laying out the facts pertaining to their relationship and explain that the agreement which had formerly been executed between the two parties will no longer be in effect.  Keep a copy of this along with your terminated business associate agreement files.