The Harmony Healthcare Long Island is a non-profit healthcare organization with 7 health centers, providing primary care and preventative medicine in the following locations in Nassau County: Roosevelt, Elmont, Hempstead, Freeport, Oceanside, and New Cassel/Westbury. In addition, the Harmony Healthcare Long Island has 4 school-based health centers, WIC offices (Special Supplemental Nutrition Program for Women, Infants, and Children) in 3 locations, and a Health Home Care Coordination program.