NxStage Medical: David S. Utterberg

David S. Utterberg, age 65, has served as a director of NxStage since 1998. Between 1981 and 2007, Mr. Utterberg served as the Chief Executive Officer, President and sole stockholder of Medisystems Corporation, which was acquired by NxStage, together with certain affiliated entities, on October 1, 2007. Mr. Utterberg presently serves as the Director and Chairman of Lifestream Medical Corporation, (formerly known as DSU Medical Corporation) a private medical device company. Lifestream Medical Corporation holds and licenses over 90 U.S. and foreign patents and other intellectual property in medical technology focused on extracorporeal therapy devices. Mr. Utterberg brings technical and entrepreneurial experience specifically relating to renal care products and the dialysis industry to our Board.