BIOLOGICAL PRODUCTS-DRUG PRICE. Creates the Prescription Drug Pricing Transparency Act. Requires health insurers to disclose certain rate and spending information concerning prescription drugs and certain prescription drug pricing information to the Department of Public Health. Requires the Department and health insurers to create annual lists of prescription drugs on which the State spends significant health care dollars and for which costs have increased at a certain rate over time. Requires the Department and health insurers to provide their lists to the Attorney General. Requires prescription drug manufacturers to notify the Attorney General if they are introducing a new prescription drug at a wholesale acquisition cost that exceeds the threshold set for a specialty drug under the Medicare Part D program. Amends the Illinois Insurance Code. Requires a group or individual policy of accident and health insurance that provides coverage for prescription drugs to apply the same cost-sharing requirements to interchangeable biological products as apply to generic drugs under the policy. Amends the Pharmacy Practice Act. Provides that when a pharmacist receives a prescription for a biological product, the pharmacist shall select the lowest priced interchangeable biological product (rather than allowing a pharmacist to substitute an interchangeable biological product only if certain requirements are met). Requires that when a pharmacist receives a prescription from a Medicaid recipient, the pharmacist shall select the preferred drug or biological product from the State’s preferred drug list.