MELVILLE, N.Y.--(BUSINESS WIRE)--OSI Pharmaceuticals, Inc. (NASDAQ: OSIP) announced today that Mr. Pierre Legault, Executive Vice President & Chief Financial Officer of OSI Pharmaceuticals, will present at the Cowen Healthcare Conference in Boston, MA on Monday, March 16, 2009 at 2:25p.m. (Eastern Time). Mr. Legault will provide an overview on the Company’s product portfolio and business developments.