Raymond (Ray) Krediet graduated in 1973 at the University of Amsterdam. In 1978 he completed his training as an internist-nephrologist and became Head of Nephrology at the Binnengasthuis in 1979 where he introduced treatment with continuous ambulatory dialysis (CAPD) in The Netherlands.
In 1986 he was promoted on a PhD thesis, entitled “Peritoneal permeability in continuous ambulatory peritoneal dialysis patients”.
In 1999 he became Professor and Head of the Department of Nephrology at the Academic Medical Centre, University of Amsterdam.
Professor Krediet supervised the research of 29 PhD students and is author of 542 publications in scientific journals. His h-index is 60 (WoS).
He was chairman of the Dialysis Group Netherlands, president of the International Society for Peritoneal Dialysis, organizer of the 1st joint ISPD/EuroPD congress in Amsterdam in 2004, and president of the Nephrology Section of the European Union for Medical Specialists. He retired October 2010,but is still involved in research and a number of academic and organisational activities. In 2011 he became honorary member of the Netherlands Federation of Nephrology and in May 2012 he was awarded the International Distinguished Medal from the National Kidney Foundation in the USA.
Since april 2012 he is member of the Scientific advisory board of the European Renal Association ERA-EDTA.