vice president Robert Brown as chief financial officer, effective immediately.
Brown held a number of leadership positions in Boston Scientific's financial group, including vice president of corporate analysis and control.
He also previously worked on financial reporting and special projects at
and was an accountant and consultant at Deloitte & Touche.
Former NxStage CFO David Gill announced his intention to resign last spring, but agreed to stay with the company until his replacement could be found. Shares of NxStage fell 3.1% to $9.01.