referral

Noun

• the act of referring (as forwarding an applicant for employment or referring a matter to an appropriate agency)

• a recommendation to consult the (professional) person or group to whom one has been referred
  • the insurance company says that you need a written referral from your physician before seeing a specialist
    

• a person whose case has been referred to a specialist or professional group
  • the patient is a referral from Dr. Bones