He appears in documents from 1499, 1503, and 1511 as a student matriculating at Erfurt and in 1511 at the University of Wittenberg.
His first securely-provenanced painting also dates from 1511, a self-portrait with the initials "HD".
His second known work is a painting of Lucretia from 1514, followed by altarpieces of 1515 and 1518 (including the Niederweidbach Altarpiece, which includes a self-portrait), portraits from the counts of Solms from 1515 onwards, and a 1527 portrait of the Ernest Count of Mansfeld and his wife Dorothea.
In 1523, he produced a wooden model for a kiln plate for casting the coat of arms of the House of Nassau.
Döring also created woodcuts (mostly monogrammed) to illustrate the writings of Reinhard, Count von Solms-Lich, his war book of 1559–60, and may have created woodcarving designs for stove tiles.