Pharmacy benefit managers.

Allows a public employer and a self-funded health plan to use a reverse auction to procure the services of a pharmacy benefit manager. Requires an audit of prescription drug cost sharing for the state Medicaid program once every three state fiscal years. Requires a pharmacy benefit manager to: (1) perform its contractual duties in good faith and in observance of reasonable commercial standards of fair dealing; and (2) notify a health plan in writing if any activity, policy, or practice of the pharmacy benefit manager presents a conflict of interest. Adds requirements of pharmacy benefit managers when denying an appeal of the maximum allowable cost pricing of a prescription drug. Requires the department of insurance (department) to develop a process for complaints regarding pharmacy benefit managers. Requires a pharmacy benefit manager to provide the department with certain information within 20 business days after the date of a complaint. Prohibits a pharmacy benefit manager from requiring a pharmacy to obtain a signature from an individual for a prescription or immunization during a public health emergency. Requires the legislative services agency to conduct a study of market concentration in Indiana of: (1) the health insurance industry; (2) the hospital industry; (3) the professions of licensed health care practitioners; (4) the retail pharmaceutical industry; (5) the pharmacy benefit manager industry; and (6) the pharmacy services administrative organization industry, including its relationship to pharmaceutical wholesalers. Requires the legislative services agency to present the findings of the study not later than September 1, 2022.