There is a role for private payers to play in reducing the incidence of type 2 diabetes among Hispanics in the United States. However, given the barriers to reducing or eliminating racial and ethnic health disparities in general that health plans currently face, successfully filling that role is a long-term proposition - one that must be preceded by much foundational work and patience by all stakeholders in the health care system. In the meantime, there is a more critical and immediate role that all private payers should play, if they have not begun to do so already - and that is to join the fight to reduce all racial and ethnic disparities in health and health care. Broader industry action will raise the level of the quality of care delivered to racial and ethnic minorities in general; improve the overall health of those populations; create additional momentum for necessary federal policy changes; enhance industry knowledge and expertise in addressing health disparities; increase the evidence base for program outcomes; and reduce the time it will take to solve this serious problem. The successful resolution of the overall problem of racial and ethnic health disparities, whether measured by prevalence or incidence, and regardless of the target population or the target disease, will require the involvement of and action by all health care system stakeholders - payers, providers, members, communities, the government, agencies, and foundations. Health plans are in a unique position to influence the majority of these players, through advocacy, strategies, interventions, incentives, partnerships, policies, and programs. This study presents a series of best and promising practices for health plans to take to begin to address racial and ethnic health disparities.