Innovation in healthcare can be associated with social innovation and the mission to contribute to a shared value that benefits not only individuals or organizations but the society as a whole. In this paper, we present the prerequisites of stimulating a market for social innovations by studying the introduction of a national health account. The results show that there is a need to clarify if a national health account should be viewed as a public good or not, to clarify the financial responsibilities of different actors, to establish clear guidelines and to develop regulations concerning price, quality and certification of actors. The ambition to stimulate the market through a national health account is a promising start. However, the challenges have to be confronted in order for public and private actors to collaborate and build a market for social innovations such as a national health account.