The complex of hospital buildings was built in the years 1911–12; during both World Wars, it was turned into a military hospital for German soldiers. At the end of World War II, the hospital was taken over by the Soviet army. In 1946–47, the buildings were reclaimed by their original owners, the Brothers Hospitallers of Saint John of God (Brothers of Mercy), who founded a hospital for children with mental disabilities and people suffering from epilepsy. In 1953, the hospital was again taken over by the military, this time Polish, and three years later was handed over to the civilian authorities of the town. In the autumn of 1956, the hospital from Dzierżyńskiego street was moved here. Since then, the complex has served as Janusz Korczak Memorial District Hospital.
It should also be mentioned here that the history of hospital care in Namysłów goes back as far as 1384, when Wenceslaus, the Bishop of Breslau, gave permission to establish a hospital, or rather an alms house, in the town. The building was erected near the monastery of the Order of St Claire, most likely on a square between 3 Maja and Dubois streets. In the years 1405–09, a masonry chapel of the Holy Ghost and St George was built at the hospital which served as the local church. The chapel has survived to this day.