The previous thread in this section mentions a ProPublic Website,
Dollars for Docs, where users can enter a (U.S.) doctor's name and state and find out if any of 17 drug companies made payments to that doctor between 2010 and 2013, and the amounts of those payments.
I looked up several of my past and present doctors. Most of them came up clean but for the neuro I used between 2001 and 2009--who prescribed Avonex for me, then Copaxone--there were these results:
2011 - received between $1,001 and $10,000 from Allergan
2012 - received $107,463 from Novartis
2013 - received $168,669 from Novartis and between $1,001 and $10,000 from Allergan