UnityPoint Health says it intends to acquire MercyOne Siouxland Medical Center and its facilities, which include the Sioux City hospital. UnityPoint Health and MercyOne, which run Sioux City's two hospitals, say they have signed a letter of intent for this deal, and they expect the acquisition to be completed this summer, pending closing conditions. As outlined in the letter of intent, MercyOne would transfer all of its entities to UnityPoint Health, including MercyOne Siouxland Medical Center, its medical group, physician practices and home care services.