Incorporated in 1992, the St. Luke's Episcopal Hospital IPA (IPA) is a network of 800 multispecialty physicians who are committed to CHI St. Luke's Health.  The IPA provides managed care contracting services, performs physician credentialing and serves as a liaison between its physician members and the payors.

In 2009, the IPA implemented a clinically integrated model for its 500 physicians on staff at the CHI St. Luke's Health hospitals. Clinical integration involves the sharing of information and integration of group goals to improve and standardize performance, reduce redundancy and improve patient care outcomes.