NxStage to Present at the 29th Annual J.P. Morgan Healthcare Conference

Tuesday January 4, 2011

LAWRENCE, Mass., Jan. 4, 2011 /PRNewswire via COMTEX/ — NxStage Medical, Inc. (Nasdaq: NXTM), a leading manufacturer of innovative dialysis products, today announced that Jeffrey H. Burbank, Chief Executive Officer and Robert S. Brown, Chief Financial Officer, will present at the 29th Annual J.P. Morgan Healthcare Conference on Wednesday, January 12, 2011 at 11:30 a.m. (PST).

The live webcast of NxStage’s presentation and accompanying slides will be made available at http://www.nxstage.com/ir.cfm at the time of the presentation.

About NxStage Medical

NxStage Medical, Inc. (Nasdaq: NXTM) is a medical device company, headquartered in Lawrence, Massachusetts, USA, that develops, manufactures and markets innovative products for the treatment of end-stage renal disease, or ESRD, and acute kidney failure. For more information on NxStage and its products, please visit the company’s website at http://www.nxstage.com/.

Forward-Looking Statements

This release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this release that are not clearly historical in nature are forward-looking, and the words anticipate, believe, expect, estimate, plan, and similar expressions are generally intended to identify forward-looking statements. Examples of these forward-looking statements include statements as to Messrs. Burbank and Brown’s plans to present at this conference. NxStage specifically disclaims any obligation to update these forward-looking statements. These forward-looking statements should not be relied upon as representing NxStage’s expectations or beliefs as of any date subsequent to the date of this press release.

Contact:

Kristen K. Sheppard, Esq.

Investor Relations

ksheppard@nxstage.com

SOURCE NxStage Medical, Inc.