Blue Cross and Blue Shield of Louisiana has hired a St. Louis health management company to manage the insurer’s new Medicare Advantage plan.

Lumeris will help Blue Cross develop and launch the Medicare Advantage plan. The plan will be offered through Blue Cross’ HMO Louisiana subsidiary and based on Lumeris’ operating model. The arrangement covers five years. Lumeris has operated Essence healthcare, a Medicare Advantage Prescription Drug plan, for nearly a decade.

In that plan, Lumeris focuses on trying to keep patients healthy and better coordinating their care rather than just treating members when they get sick.