An Act to preserve and protect public health

HD 923 requires Massachusetts Medicaid providers administering vaccines to eligible adults and children to receive reimbursement rates no lower than the federal Centers for Medicare & Medicaid Services (CMS) regional rates. This applies to all vaccination billing through Medicaid payment systems or pharmacy benefit managers. The law directly affects healthcare providers who serve Medicaid patients by guaranteeing they are paid at least the federal standard for vaccine administration. The policy takes effect on January 1, 2026.