NxStage Announces Fourth Quarter 2011 Investor Conference Schedule

Friday November 4, 2011

LAWRENCE, Mass., Nov. 4, 2011 /PRNewswire/ — NxStage Medical, Inc. (Nasdaq: NXTM), a leading manufacturer of innovative dialysis products, today announced that Jeffrey H. Burbank, chief executive officer, will participate in the following schedule of investor conferences. Where possible, a webcast of the event will be made available at http://www.nxstage.com/ir.cfm at the time of each conference.

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UBS Access Investor Day at The American Society of Nephrology Kidney Week
Friday, November 11, 2011 at 2:00 p.m. ET
Marriott Downtown Philadelphia
Philadelphia, PA.

Lazard Capital Markets 8th Annual Healthcare Conference
Tuesday, November 15, 2011 at 2:30 p.m. ET
The Pierre Hotel
New York, NY

23rd Annual Piper Jaffray Health Care Conference
Tuesday, November 29, 2011 at 11:30 p.m. ET
The New York Palace Hotel
New York, NY

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 Mr. Burbank‘s plans to present at these conferences. 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.

Kristen K. Sheppard, Esq.
Investor Relations

SOURCE NxStage Medical, Inc.

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