Three types of specialists can treat fibromyalgia: rheumatologist, orthopedist, and immunologist. The general practitioner, internal medicine, family medicine, physician's assistant, family nurse practitioner can treat fibromyalgia too. A neurologist can treat it with another condition. Three types of specialists can treat fibromyalgia: rheumatologist, orthopedist, and immunologist. The general practitioner, internal medicine, family medicine, physician's assistant, family nurse practitioner can treat fibromyalgia too. A neurologist can treat it with another condition.