Tricare has two coverage groups, Group A and Group B. Members in Group A saw active service prior to Jan. 1, 2018; Group B is for those whose first active service was on or after that date.

TRICARE, the U.S. military’s health care program, provides health care coverage to 9.6 million active duty service members, their families, National Guard and Reserve members, and military retirees.

A new contract from prescription-drug benefit manager Express Scripts will force nearly 15,000 pharmacies out of the Tricare network by the end of this month, according to a spokeswoman for a ...