He hasn't died yet.
Doctor Greenwood died in 1951.
Doctor Clayton died in 1947.
The Doctor has died many times, but as a Time Lord, he regenerates into a new incarnation each time.
Doctor Tangalanga died on December 26, 2013.
Doctor Philastus Hurlbut died in 1883.
Doctor Ross died on 1993-05-28.
John Jones - doctor - died in 1791.
Robert Hale - doctor - died in 1767.
Alexander Fleming - doctor - died in 1875.
Alexander Hamilton - doctor - died in 1756.
John McClelland - doctor - died in 1875.