Unison Health Plan operates public-sector health care plans in Delaware, Ohio, Pennsylvania, South Carolina, Tennessee and Washington, D.C. With years of steady growth, Unison Health Plan has become a leader among public-sector health plans. As of April 2008, Unison serves more than 380,000 members and about 32,000 providers, such as practitioners and pharmacies. Fill out the form with this page to learn more about Unison and the advantages to having them with your portfolio.