On Wednesday, December 15th, the National Community Pharmacists Association (NCPA) announced changes to COVID-19 vaccine billing practices for Medicare Advantage Organizations and Medicaid plans: "Medicare Advantage Organizations and Medicaid plans will be required to pay for the COVID-19 vaccine and its administration (including approved booster doses) without cost-sharing for beneficiaries enrolled in their plans."
NCPA Announcement: https://ncpa.org/newsroom/qam/2021/12/15/covid-19-vaccine-billing-changes-ma-and-mmp-beneficiaries