Mark F Wheeler

Mark F. Wheeler, M.D., M.P.H. has served as our director since his election to our board at the 2006 annual meeting. Dr. Wheeler has served as Director of Clinical Informatics for PeaceHealth, an integrated delivery network of hospitals in the Pacific Northwest, since January 2007. He previously served as Acting Vice President Engineering, Centricity Enterprise Business Unit of General Electric Company, a diversified technology, media and financial services company, from February 2006 to January 2007. He served as chief technical architect of IDX Systems Corporation, a healthcare information technology services provider, from 1997 until December 2005, when IDX was acquired by General Electric, and served on IDX's board of directors from 1999 through 2005.