Rhinoplasty surgery is performed by either a plastic surgeon or an otolaryngologist. The latter usually fixes the deviated septum part and the outside nose or reducing it and removing the hump is done by the plastic surgeon.
You may want to go to (www.plasticsurgery.org). Make sure the plastic surgeon is certified by the American Board of Plastic Surgery and look at photographs of his patients. If something looks weird, go to another one.