Prohibits a health plan issuer from taking certain actions that would favor the issuer’s affiliated pharmacies or would result in a covered person being required to use an affiliated pharmacy or restricted from using an unaffiliated but in-network pharmacy. Prohibits a health plan issuer from preventing a pharmacy from joining the issuer’s network if the pharmacy agrees to reasonable terms of the issuer’s pharmacy provider contract and is otherwise in compliance with the law. Requires each contract between a health plan issuer and a pharmacy to include a system by which the pharmacy can inform a covered person when a drug is available at a lower cost if purchased outside of the health benefit plan.