Doctor of Medicine, University Leiden, Netherlands, 1991. Doctor of Philosophy, University Amsterdam, 2002.
Researcher Le Kef Foundation, Tunisia, 1992. Intern in pediatrics Emma Children's Hospital/Administrative Management College, Amsterdam, 1993—1994, researcher venous thromboembolic disease in childhood, since 1997. Member staff department pediatric hematology Emma Children's Hospital, since 2004.
Member committee treatment venous thromboembolic disease Dutch Institute Healthcare Improvement, Utrecht, Netherlands, since 2005.
Member of International Society Thrombosis Haemostasis, NVK.
Daughter of Pim van Ommen and Elizabeth Ravensbergen. Married Arjan Heijl; children: Merel Heijl, Olaf Heijl.