It's not just Botox involved here. That just immobilizes the smaller muscles within the face. There is actually quite a bit of injections involved that "plump" the skin up making the skin smoother on top and face rounded out a bit more. Thus, the difference between the sunken cheek Kerry pic above and the round cheek Kerry in the OP. I strongly also suspect a chin implant but am trying to track down a before & after to compare.
I'm not a doctor but I do live in Dallas. I can spot work & determine what kind a block away now