Werner Otto Carl Creutzfeldt (11 May 1924 – 30 August 2006) was a German professor of internal medicine and an expert in gastrointestinal endocrinology.
[1] His first research paper, published in 1953, discussed the pancreatic findings in diabetes mellitus and insulinoma, which marked a career-long interest in hormonal disorders of the gastrointestinal tract.
He began a teaching career in Freiburg before joining the University of Göttingen faculty in 1964 as a full professor.
[2] He remained at Göttingen until 1992, where he published over 750 research papers on topics including diabetes, pituitary function, neuroendocrine tumours, the incretin effect, insulin resistance, and fatty liver disease.
[2] In his later career, Creutzfeldt was also a proponent of medical ethics, which may have been influenced by his upbringing in the Nazi regime.