Medicaid Managed Care in an Integrated Health Care Delivery System: Lessons from Geisinger's Early Experience.

Many states in the United States, including Pennsylvania, have opted to rely on private managed care organizations to provide health insurance coverage for their Medicaid population in recent years. Geisinger Health System has been one such organization since 2013. Based on its existing care management model involving data-driven population management, advanced patient-centered medical homes, and targeted case management, Geisinger's Medicaid management efforts have been redesigned specifically to accommodate those with complex health care issues and social service needs to facilitate early intervention, effective and efficient care support, and ultimately, a positive impact on health care outcomes. An analysis of Geisinger's claims data suggests that during the first 19 months since beginning Medicaid member enrollment, Geisinger's Medicaid members, particularly those eligible for the supplemental security income benefits, have incurred lower inpatient, outpatient, and professional costs of care compared to expected levels. However, the total cost savings were partially offset by the higher prescription drug costs. These early data suggest that an integrated Medicaid care management effort may achieve significant cost of care savings. (Population Health Management 2016;19:257-263).