So a DO who was considered "lower level" could not work in regular hospitals but he still had DO after his name. Is that correct?
I guess, however I am certainly no expert. In the city of Philadelphia, in the last ten years, four osteopathic hospital (Metropolitan Hospital, Parkview Hospital, the Hospital of the Philadelphia College of Osteopathic Medicine, and St. Agnes Hosputal (now St. Agnes Continuing Care Center) have closed.
A lot of hospitals are hard up for patients and maybe will give admitting privledges to almost any licensed physician (which of course includes DO's but not chiropractors). How much the DO label hurts when you try to get on a hospital payroll, I don't know.