To improve medical care for young people in the Netherlands, various professional groups representing physicians who provide medical care to children have developed a vision called ‘strengthening medical care for young people’. The purpose of this viewpoint is to reflect on the implementation of proposals to augment cooperation and coordination between the professional groups involved. Our reflection demonstrates that additional action regarding cooperation and coordination is still necessary to strengthen this care for young people. First, regarding the practical implementation of collaboration, the guidelines are unclear, and many are out-of-date. Second, adequate structured interdisciplinary training and intervision are lacking for physicians frequently collaborating in the care of young people. Third, interdisciplinary access to patient files is too complex and time-consuming. We recommend structured monitoring of the implementation of all improvement proposals, regarding both processes and outcomes. In addition, we recommend collaboration with physicians treating mentally disabled individuals to improve medical care for this group.