FALLS CHURCH, Va. – Several new changes to Tricare retail pharmacies recently took effect. Starting Wednesday, Dec. 15, CVS Pharmacy joined the TRICARE network, while Walmart, Sam’s Club and some community pharmacies left the network.

Previously, the Tricare retail pharmacy network offered access to over 59,000 pharmacies. With this change, nearly 5,000 more retail pharmacy locations will be added and nearly 90% of beneficiaries will have access to a network pharmacy within 5 miles of their home.

CVS Pharmacy has nearly 10,000 pharmacy locations, including in Target stores. Additional...