AdvantX Practice Management Registration maintains a complete profile of patient demographic, responsible party, insurance and insurance verification information. The foundation for registration is the Master Person Index (MPI), a central repository that contains key data – phone numbers, addresses, etc. – on every person involved with the practice, in any capacity. The system has been designed so that each patient should only have one account – no matter how many times the patient is seen. Each patient, however, is allowed to have one or more payment sources and cases, with responsible parties and insurance carriers assigned to each specific payment source and case