neuropath

Noun

 * 1)  A person with neuropathy, perhaps also including (in outdated nosology) a neurosis: someone who has, or is predisposed to, some disease of the nervous system.
 * 2)  A physician with specialization in neuropathy, corresponding to today's specialties of neuropathologist or neurologist: one who focuses on nervous conditions in pathology.

Usage notes
Both senses of the word are outdated, as patients are no longer labeled as if their diseases were their identities (just as a person with syphilis is no longer called a luetic [n.]), and no neuropathologist or neurologist today is called a neuropath in English.