Overview Most Medicaid beneficiaries in most states are enrolled in managed care organizations (MCOs). (See text box, “What’s a Medicaid MCO?”) State Medicaid agencies contract with MCOs to assemble networks of health care providers to furnish services to program beneficiaries and protect them from medical debt. Simply put, if an MCO does not do its job, … Continue reading A Guide for Health Care Advocates: Medicaid Managed Care Procurement