Requires pharmaceutical manufacturers to report to Department of Consumer and Business Services total cost of patient assistance programs and information on financial assistance provided to pharmacies, government agencies and advocacy organizations. Excludes proprietary information from disclosure on department’s website. Requires state-sponsored programs that use pharmacy benefit managers to use fee-only pharmacy benefit managers. Requires insurers to post specified information regarding formulary, tiers and costs to insurer’s website. Requires 60-day advance notice to enrollees adversely affected by change in formulary. Requires insurer and allows pharmacy to notify insured that if cash price for drug is less than insured’s cost-share for drug, insured may pay cash price and expense must be counted toward deductible or out-of-pocket maximum. Requires hospitals and other medical providers to disclose in patient billing information regarding mark-up on price of drug. Also requires billing to disclose price of drug charged to specified state agencies and insurers. Requires specified state agencies to report to Legislative Assembly on high-cost drugs. Requires Oregon Health Authority to refer to Pharmacy and Therapeutics Committee any drug exceeding specified cost. Requires patient advocacy organization with budget exceeding $50,000 that has registered lobbyist in this state to report to Oregon Government Ethics Commission and Oregon Health Authority specified information regarding funding received from participants in pharmaceutical supply chain. Requires pharmacy benefit managers to report to Department of Consumer and Business Services and plan sponsors specified information regarding rebates, reimbursements, fees and incentives paid for drugs by manufacturers, insurers and pharmacies. Requires drug advertisement to disclose wholesale price of drug.