Health insurer, WellPoint, has announced the sudden removal "without cause" of its chief accounting officer, Martin Miller.

WellPoint said Millers' removal is not reelated to the company's financial statements or accounting practices. Miller joined WellPoint in September 2008 from Molson Coors Brewing Co., and had served as senior vice president, chief accounting officer, controller and chief risk officer.

Assuming Miller's role is John Gallina, who most recently was senior vice president of internal audit and continuous improvements. Gallina, who joined WellPoint in 1994, additionally most recently served as a senior vice president of finance since August 2008.