Pharmacy benefit managers. Requires a pharmacy benefit manager to obtain a license issued by the department of insurance and sets forth requirements of the pharmacy benefit manager. Provides for the commissioner of the department of insurance to adopt rules to specify licensure, financial standards, and reporting requirements that apply to a pharmacy benefit manager. Sets forth requirements and prohibitions of a pharmacy benefit manager. Allows a party that has contracted with a pharmacy benefit manager to request an audit of compliance at least one time per year. Makes violations of the chapter concerning pharmacy benefit managers an unfair or deceptive act or practice in the business of insurance. Allows a pharmacy benefit manager to obtain the license not later than December 31, 2020, in order to do business in Indiana and provide services for any health provider contract beginning January 1, 2021.