A9. Be sure to ask whether the flu shot clinics are being done by the pharmacy or a third party vendor. To be covered at no cost to you through the pharmacy benefit, a flu shot must be administered through the pharmacy and processed by the pharmacy online under the Anthem Pharmacy/CarelonRx benefit. Be sure to check before getting the flu shot to ensure the pharmacy or clinic will not charge you. If the participating pharmacy will not process your flu shot for free, ask the pharmacist to call the Anthem Pharmacy/CarelonRx pharmacist helpline on the back of your ID card.