Leidos, Inc., Reston, Virginia was awarded a ceiling $4,336,822,777 indefinite-delivery/indefinite-quantity contract, with firm-fixed-price, cost-plus-fixed-fee, cost-plus-incentive fee, and fixed-price incentive pricing arrangements, for the Defense Healthcare Management System Modernization program. As a service provider integrator, the contractor will provide an electronic health record off-the-shelf solution, integration activities and deployment across the Military Health System. This contract has a two-year initial ordering period, with two 3-year option periods, and a potential two-year award term, which, if awarded, would bring the total ordering period to 10 years. Work will be performed at locations throughout the United States and overseas. If all options are exercised, work is expected to be completed by September 2025. Fiscal 2015 Defense Health Program Research, Development, Test and Evaluation funds in the amount of $35,000,000 will be obligated at the time of award. Additional funds will be obligated as individual delivery orders are issued. This was a competitive acquisition, with six offers received. The Space and Naval Warfare Systems Command, San Diego, California, is the contracting activity (N00039-15-D-0044).