fee splitting

Short definition from Wiktionary

Noun

1. 1
   The practice, usually of questionable ethicality, by some professionals, such as medical doctors and lawyers, of sending a client to a second practitioner for an additional consultation in order to obtain another payment from the client or from his or her insurer, and in return for which the original practitioner receives a portion of the payment made to the second practitioner (a "commission" or
2. 2
   Alternative form of fee splitting.