(Reuters) -Healthcare conglomerate Cigna appointed Chief Financial Officer Brian Evanko to the newly created position of chief operating officer and promoted his deputy, Ann Dennison, to the top finance role,

"These leadership changes create a sharpened structure to build upon our strengths for continued growth, enhance our customer focus and deliver even greater value for those we serve," Chairman and CEO David M.

Cigna CEO David Cordani said the executive reorganization will put Evanko in direct control of the health service subsidiary, which includes the pharmacy benefit manager Express Scripts, and its insurance operations. Cordani also presented at the Barclays 27th Annual Global Healthcare Conference in Miami on Thursday.

Cigna has made a series of upper management changes, which include making CFO Brian Evanko as the healthcare conglomerate's chief operating officer, and promoting his deputy Ann Dennison to the top finance role.