1985 Consultant, Schering Corporation, Bloomfield, NJ
1988-89 Medical Director for New Product Identification, Biogen Corporation, Cambridge, MA
1989-96 Consultant, Bristol-Myers Squibb
1993 Consultant, Asta Pharmaceutical
1995-98 Consultant, Allergan Pharmaceutical
1997-98 Consultant, Hoffman-LaRoche Pharmaceutical, Soriatane Advisory Board
1997-98 Consultant/Speaker, Novartis Pharmaceutical
2000 Consultant, Medicis Pharmaceutical Corporation