MA S905

Creates a new "Weighted Average Payer Rate" (WAPR) metric that combines inpatient revenue per discharge and outpatient revenue per visit across Commercial, Medicare, and Medicaid payers, weighted by each payer's share of Net Patient Service Revenue

Requires annual public hearings by October 1 to examine health care costs, prices, and WAPR data for providers, provider organizations, and payers, focusing on factors driving cost growth

Expands provider testimony requirements at hearings to include WAPR alongside existing topics like payment systems, payer mix, cost structures, and reimbursement levels

Mandates reporting of WAPR for each acute care hospital and physician organization in state health care cost analyses and annual reports

Amends Chapter 224 of the Acts of 2012 (Massachusetts health care cost containment law) across multiple sections to integrate WAPR into existing oversight and transparency frameworks