Immigration as a solution to staff and skill shortages in the health system is increasingly on the agenda in the EU. The paper highlights the related social and policy dilemmas by comparing a new with an old destination country: Spain and the United Kingdom. After describing the challenges met by the UK, the article asks how far Spain is prepared to face the same issues. In particular, attention is paid to the occupational mobility of health workers after entry and to how immigration as a staffing solution poses new political and social challenges. Through the review of the background information regarding the immigration of health workers in the two countries, and the preliminary analysis of 15 exploratory interviews, this paper aims to identify the main trends and the key concerns for future analysis. Although our interviews only allow us to draw tentative conclusions, they do highlight emerging issues to be explored in the near future.Our conclusions show that many of the problems traditionally encountered in the UK are now emerging in Spain, suggesting scope for further collaboration between government, employers and other stakeholders across the EU.