Well, yes technically Intermountain Health “donated” its hospitals and then Intermountain Healthcare was formed as a secular not-for-profit organization to administer those hospitals. It isn’t directly owned by the church, but it very much so is indirectly. All this is related to the very complicated and extraordinarily rich Mormon financial situation. They have many ways to own businesses outside of their religious mission, but to avoid losing their tax-exempt status as a religious institution they need to create (the appearance of) a wall.
the LDS Church is highly non-transparent about their finances and have often been accused of hiding and essentially internally laundering their vast vast wealth.