Health plans; calculation of enrollee’s contribution to out-of-pocket maximum or cost-sharing requirement; rebates. Requires any carrier issuing a health plan in the Commonwealth to count the amount of any rebates received or to be received by the carrier or its pharmacy benefits manager in connection with the dispensing or administration of a prescription drug when calculating the enrollee’s overall contribution to any out-of-pocket maximum or any cost-sharing requirement under the carrier’s health plan.