US Family Health Plan is one option of the Military Health System known as TRICARE. The US Family Health Plan program was selected by the Department of Defense to be a provider of TRICARE Prime. As a US Family Health Plan member you receive all the benefits offered by the TRICARE Prime program. The US Family Health Plan has served the health care needs of military beneficiaries since 1993. However, the US Family Health Plan providers began as US Public Health Service hospitals.