The corps has its own insignia, designed by George Sigerson and TJ McKinney around various symbols of medicine and healing from Irish mythology.

[2] Its badge displays the words "Óglaigh na hÉireann" (the name of the Defence Forces in Irish) on a scroll at the top.

This Middle Irish phrase is a quotation from the Táin Bó Cuailgne, and is equivalent to modern Irish "comhroinn leighis" (literally "equal division of healing"); it translates as "impartial treatment", referring to how the warring heroes Cú Chulainn and Ferdiad would call a truce each night between their battles to treat each other's wounds.

[4] During 2020 and 2021, as part of Ireland's response to the COVID-19 pandemic, paramedics from the Army Medical Corps assisted in staffing ambulances with the HSE National Ambulance Service and Dublin Fire Brigade in order to increase capacity,[5] Medical Corps personnel also formed part of the national testing and contact tracing programme, and administered vaccinations.

[8][9] Medical Branch is responsible for setting policy and guidelines, while CMU is tasked with service delivery.