SUMMIT, N.J.--(BUSINESS WIRE)--Celgene Corporation (NASDAQ: CELG) today announced its presentation at the Oppenheimer & Co. Inc. 20th Annual Healthcare Conference on Wednesday, November 4, 2009 at 10:15 a.m. ET will be webcast live and will be available in the investor relations section of the company’s Web site at www.celgene.com. Celgene management will provide an overview of the company.