List of former United States Army medical units

Note: an asterisk (*) denotes a civilian hospital temporarily commandeered by the Union Army.

Civil War [18] [69] [70] World War I This was a specific unit designation, much like a Combat Support, MASH, or Evacuation Hospital[108] World War I This was a specific unit designation, much like a Combat Support, MASH, or Evacuation Hospital[112] World War I This was a specific unit designation, much like a Combat Support, MASH, or Evacuation Hospital[117] World War I This was a specific unit designation, much like a Combat Support, MASH, or Evacuation Hospital[118] Source:[119] This was a specific unit designation, much like a Combat Support, MASH, or Evacuation Hospital[126] The Army's official designation for the MASH is Surgical Hospital (Mobile) (Army).

they would often be referred to as the XXth Surgical Hospital through the end of the Vietnam War (and the start of the TV series M*A*S*H) This was a specific unit designation, much like a Combat Support, MASH, or Evacuation Hospital[139]

[147] In 2014 all of these hospitals were inactivated and replaced by USAR Medical Backfill Battalions as part of the Total Army Analysis 15–19.

[146] Named Hospital Centers, American Expeditionary Force[154] Sanitary Trains were the division-level medical support unit for divisions in the American Expeditionary Force[173]