If your family members live in an EU/EEA country or in Switzerland or the United Kingdom, they are also entitled to medical care in the Netherlands. For this care in the Netherlands, your family members can use the EHIC (European Health Insurance Card). More information about care in the Netherlands can be found on the website of the Zilveren Kruis.
If your family members make use of medical care in the Netherlands, Zilveren Kruis will pay the costs incurred directly with the doctor or healthcare institution in the Netherlands. They are only entitled to healthcare which is included in the Dutch Health Insurance Act and the Long-Term Care Act.
Other treaty country
If your family members do not live in an EU/EEA country or in Switzerland or the United Kingdom, they will always need supplementary or travel insurance when staying in the Netherlands. They are not entitled to healthcare outside their country of residence at the expense of the Netherlands. They also do not receive an EHIC from the CAK.