Henk-Jan Aanstoot (1957) is a pediatric diabetologist. After medical training at Erasmus Medical University MedCenter in Rotterdam, the Netherlands and military service he started his training in pediatrics at Sophia Children’s Hospital (ErasmusMC, Rotterdam 1985). After completion (1989) he went to the Hagedorn Research Lab (Copenhagen, DK) to join the research group of Dr. Steinunn Baekkeskov. The work was continued atUCSF Hormone Research Institute, San Francisco (EASD Albert Renold fellowship, Royal Dutch Academy ofSciences Termeulen fellowship and a NovoNordisk Research Grant) and included the identification of the 64kD antigen as Glutamic Acid Decarboxylase (GAD). In 1992 he (re)joined in the pediatric diabetesclinic and –reseachgroup of the late Prof. Jan Bruining, defended his PhD thesis (cum Laude) and from 2000-2006 was president of the Dutch Diabetes Federation (NDF). In 2006 he cofounded ‘Diabeter’, a focussed diabetes clinic and Research center. Diabeter was acquired in 2015 by Medtronic but remains as a brand-agnostic, focused, value-based healthcare driven clinic. Since jan 2022 he is clinical research director and focusses on research and development. Awards include the Erasmus University Research Prize (1994) and the National Diabetes Research Award (1995, Gerritzen-award), Value-Based healthcare Europe Prize (2017) and received a Royal Medal of Honour (Officier Oranje Nassau) in 2017.