This does not make sense to me. Why would there be a residency to specialize in OMM, when you are trained to do this in an osteopathic medical school and then also in your post-grad years at an AOA residency? Do you have to be a specialist in OMT to get reimbursed or something?

In medical school you get radiology courses same thing in residency that doesn't mean you are a radiologist. same thing with omm we are taught the basic principles and techniques, that doesn't mean everybody is an expert at it. some people may decide to acquire a more profound knowledge so the enter a into a omm or combine residency.