St. Anthony Hospital is a large general hospital located in downtown Oklahoma City, Oklahoma. It is the oldest hospital in the state and one of 19 operated by SSM Health, a not-for-profit Roman Catholic care provider. St. Anthony Hospital is home to medical and surgical programs providing general acute care services including: cardiology, oncology, neurolog…St. Anthony Hospital is a large general hospital located in downtown Oklahoma City, Oklahoma. It is the oldest hospital in the state and one of 19 operated by SSM Health, a not-for-profit Roman Catholic care provider. St. Anthony Hospital is home to medical and surgical programs providing general acute care services including: cardiology, oncology, neurology, behavioral medicine, surgery, kidney transplantation and other services. An advanced structural heart disease program is offered at the affiliated Saints Heart and Vascular Institute.