Unfortunately, I cannot give you a specific answer concerning hospitals, I will give you a general answer applicable to any organization in any sector. Please check clause 7.3 of ISO 9001:2015.
People working for the QMS need to be aware of the quality policy, need to be aware of the quality objectives that they can influence with their work, need to be aware how they can contribute to meet those objectives, and need to be aware of the consequences of nonconformities.
To meet these requirements, I normally set workshops where the representation of the organization, based on the process approach as a set of interrelated processes, is the starting point. From there I invite people to find in which processes they work in, which processes act as their internal suppliers and which processes act as their internal clients. Then I invite people to make the relationship between processes and quality objectives, from there they see how they influence the quality objectives and the QMS effectiveness.
The following material will provide you more information about organizational knowledge: