This section applies to: insurers and nonprofit health service plans that provide, directly or through a pharmacy benefit manager, coverage for prescription drugs under health insurance policies or contracts that are issued or delivered in the State; and health maintenance organizations that provide, directly or through a pharmacy benefit manager, coverage for prescription drugs under contracts that are issued or delivered in the State. If an entity subject to this section requires a pharmacy to submit a request for payment electronically, then the pharmacy or designated agent may choose to be reimbursed electronically, and in that event the entity shall reimburse the pharmacy electronically, and shall provide the appropriate payment data electronically. An entity subject to this section may not impose a processing fee for the electronic reimbursement or for providing payment data electronically.