OSU owns the OSU Medical Center, which is now under management contract with Mercy.
TCOM has never owned a hospital, except UNT Health which has a specialty physician network and teaching clinics. There was a rather decent 265-bed osteopathic hospital on campus (one among 35 osteopathic hospitals in Texas - believe it or not) which was a Fort Worth institution and had been in existence for 50 years. It had no financial connection to TCOM, but had several AOA residency programs and provided rotations for TCOM students - although many TCOM students preferred to rotate at the official teaching hospital JPS, which is a 547-bed county hospital and Level 1 trauma center. The osteopathic hospital experienced management problems and went under 10 years ago. TCOM subsequently bought the property, held a farewell ceremony, demolished it, and used the land for a new building. Nowadays TCOM students rotate at JPS and other large hospitals in the neighborhood including Cook Children's, or at other hospitals in East Texas if they want to be near family there. Yes, JPS and UNT Health recently agreed to a merger where both JPS physicians and UNT Health physicians will be combined under a new umbrella. From personal experience, I can say that rotations in Fort Worth are highly demanding and absolutely top notch.