At present, there are six medical staff assigned to three villages for voluntary consultation, and there are _ _ different distribution methods.

The first village is divided into two people, using C 6 2? In this way, the second village is divided into two people, using C 4 2? This method,

The three villages are divided into two people, and there is a C 2 2 method.

So there are C 6 2 C 4 2 C 2 2 =90 different distribution schemes.

So the answer is: 90.