Ronald Ross ( May 13 , 1857 - September 16 , 1932 ) was an English doctor . He won the 1902 Nobel Prize in Physiology or Medicine , for work on malaria . Sir Ronald Ross KCB ( 13 May 1857 â `` 16 September 1932 ) was a British doctor who received the Nobel Prize for Physiology or Medicine in 1902 for his work on malaria .