Does it make a difference? If you know beforehand then you are not seeing a chiropractor thinking they are a doctor, you are seeing a chiropractor knowing they are a doctor. If you don’t know beforehand the original rule still works.

Doctor of osteopathy (DO). My first doctor as an adult was a DO and treated things like sinus infections with medication, but when I picked up a ladder and something popped in my back, he adjusted my spine and put it back into place and almost instantly it stopped hurting.

Are there any? I've never heard of one.