; (ii) does not have a material familial, financial, or professional relationship with such a party; and (iii) does not otherwise have a conflict of interest with such a party (as determined by the Secretary); and (B) that requires, in the case such parties do not make such selection by such last day, the Secretary to, not later than 6 days after such date of initiation— (i) select such an entity that satisfies clauses (i) through (iii) of subparagraph (A); and (ii) provide notification of such selection to the provider or facility (as applicable) and the health plan party to such determination. An entity selected pursuant to the previous sentence to make a determination described in such sentence shall be referred to in this subsection as the selected independent entity with respect to such determination. (4) Treatment of consideration of multiple items and services (A) In general Under the mediated dispute process, the Secretary shall specify criteria under which multiple qualified mediated dispute items and services are permitted to be considered jointly as part of a single determination by an entity for purposes of encouraging the efficiency (including minimizing costs) of the mediated dispute process. Such items and services may be so considered only if— (i) such items and services to be included in such determination are furnished by the same provider or facility; (ii) payment for such items and services is required to be made by the same health plan