There is a way! though done somewhat in reverse.

Edit Mode - select all the verts that you don't want to be effected by the shape keys. press the "W" key (or vertex menu) and select "Propagate to all shapes" DONE!

So essentially what you are doing is, assuming the vertex group you want to apply to all the shape keys is the same vertex group, you can essentially take the inverse of that vertex group and apply it's vertex shapes to all the shape keys. If you do need to use a different vertex group for each shape key, unfortunately this won't be as helpful @_@

There is a way! though done somewhat in reverse.

IN Edit Mode select all the vertex that you don't want to be effected by the shape keys. press the W key (or vertex menu) and select Propagate to All Shapes.

Essentially what you are doing is, assuming the vertex group you want to apply to all the shape keys is the same vertex group, you can essentially take the inverse of that vertex group and apply it's vertex shapes to all the shape keys. If you do need to use a different vertex group for each shape key, unfortunately this won't be as helpful.