Health and supplemental benefits company Humana has completed the acquisition of OSF HealthPlans, a managed care company, from OSF Saint Francis.

Humana said that the acquisition is not expected to have any effect on its earnings guidance for 2008 earnings.

Michael Kasper, president of Illinois market for Humana, said: The addition of OSF HealthPlans allows Humana to leverage the best of each organization to offer innovative and affordable plans, a wide range of specialty products and industry-leading interactive tools that provide guidance and improve the health benefits experience for consumers.

This also broadens our ability to serve multi-location employers in Illinois and strengthens Humana’s statewide provider networks, creating a strong tie to the premier health system in the region – OSF Healthcare System.