UnitedHealthcare announced it has signed a long-term agreement with Connecticut-based MidState Medical Center that will enable all members to get care at MidState facilities in Meriden and ancillary care centers in Cheshire, Southington and Wallingford. Before the agreement, MidState's facilities were part of UnitedHealthcare's network for members of commercial health plans. As of March 1, members of the company's Oxford commercial and Medicare Solutions plans can also get in-network care at MidState's locations.