Dr. John Farrell:

An assistant GP is a fully qualified doctor who is employed after qualification by an established practice. They would usually be salaried by the practice they are employed in. They may not be a partner but they might aspire to partnership or they may just be getting some experience in general practice before they go out and try to work on their own by getting a GMS contract and establishing themselves in practice. It is somebody who is working with an established GP on a salaried basis.