I worked in a clinic in So California with an osteopath, 2 chiropractors, and an ortho (yes, they can actually get along).
All the previous advice is good...depending on what's actually wrong with you.
But I would still recommend going the natural way first:
1. An Osteopath (D.O.)
2. A Chiropractor (Educated at Palmer School)
Then
3. An orthopedist
Caution, don't trust a Chiropractor who will manipulate your spine without first taking x-rays.