(a) If a utilization review entity has required a healthcare provider to utilize step therapy for a specific prescription drug for a subscriber, the utilization review entity shall not require the healthcare provider to utilize step therapy a second time for that same prescription drug, even though the utilization review entity or healthcare insurer may change its prescribed drug formulary or change to a new or different pharmacy benefits manager or utilization review entity.
(b) In order to ensure compliance with this section, if a healthcare insurer or utilization review entity changes its pharmacy benefits manager, the healthcare insurer or utilization review entity shall provide the new pharmacy benefits manager with adequate historical claims data to identify all subscribers who have been required to utilize step therapy and the results of that step therapy.
(c) Notwithstanding subsection (a) of this section, a utilization review entity may require the utilization of step therapy if:
(1) A new drug has been introduced to treat the patient's condition or an existing therapy is considered clinically appropriate for treatment of the patient's condition; or
(2) The patient's medical or physical condition has changed substantially since the step therapy was required that makes the use of repeat step therapy appropriate.