The complexity of issues in health care in the United States-specifically insurance coverage, access, affordability, quality of care, and financing-requires effective new models for governing, in which governmental and non-governmental organizations seek to solve problems collaboratively rather than independently. This research explores collaborative governance as a model to form new partnerships among for-profit, nonprofit, and public organizations in an effort to create community-based, locally governed health care entities in Oregon through coordinated care organizations (CCOs). A key question is whether collaboration, through CCOs, brings together government and non-governmental organizations to solve "intractable problems" by establishing new public-private partnerships in Medicaid. The research focuses on the formation of CCOs, including the influence of local, political, institutional, and historical contexts, planning processes, and governance structures. The hypothesis is that conditions, norms, governance structures and processes, and the presence or absence of a combination of these factors, facilitate or impede participation and decision-making, and over time, successful system integration by these new complex organizations.This study developed insights into similarities and differences among CCO governance structures by investigating three CCOs. Findings from the case study suggest that the following key factors influence the collaborative governance process among government and non-governmental organizations within CCOs: prior history of conflict or cooperation; open, transparent, and inclusive processes for stakeholders; face-to-face OREGON HEALTH REFORM AND COORDINATED CARE ORGANIZATIONS ii dialogue, trust building, and shared understanding; and high-functioning governing boards. Results also indicate that maintaining stakeholder participation can be challenging due to time and cost, power imbalances and competing interests among stakeholders, and mistrust and lack of facilitative leadership. The results suggest that collaborative governance is a strategic approach for the allocation of limited resources across public, private, and nonprofit organizations to deliver services to Oregon's Medicaid population.