; and (ii) whether such pharmacies are used by participants and beneficiaries disproportionately more in the aggregate or for specific drugs compared to other network pharmacies; (C) whether group health plans and health insurance issuers offering group health insurance coverage have options to elect different network pricing arrangements in the marketplace with entities that provide pharmacy benefit management services, and the prevalence of electing such different network pricing arrangements among a selection of such plans and issuers; (D) pharmacy network design parameters that encourage participants and beneficiaries in the plan or coverage to fill prescriptions at mail order, specialty, or retail pharmacies that are wholly or partially owned by that issuer or entity; and (E) for a selection of plans and issuers, the degree to which mail order, specialty, or retail pharmacies that dispense prescription drugs to participants and beneficiaries in a group health plan or group health insurance coverage that are affiliated with or in common ownership with group health plans, health insurance issuers, or entities providing pharmacy benefit management services or pharmacy benefit administrative services under a group health plan or group health insurance coverage receive reimbursement that is greater than the median price charged to the group health plan or health insurance issuer when the same drug is dispensed to participants and beneficiaries in the plan or coverage by other pharmacies included in the pharmacy network of that plan or issuer that are not affiliated with or in common ownership with the health insurance issuer or entity providing pharmacy benefit management services. (2) Requirement In carrying out paragraph (1), the Comptroller General of the United States shall not disclose— (A) information that would allow for identification of a specific individual, plan sponsor, health insurance issuer, group health plan, or entity providing pharmacy benefit management services