The aim of this bachelor thesis is to examine how medical librarians relate to their occupational identity and mediation of information. New technology and new ways of communicating information have influenced the profession of medical librarians and their duties, why it is important to examine their occupational identity. The research questions are: How do medical librarians perceive and relate to their occupational identity and as information intermediaries? How do medical librarians relate to their duties? The method used in this study is semi-structured interviews and the empirical information was analyzed using qualitative content analysis. The theory used for analyzing the results is Anders Øroms theory about six different identites which occurred in line with the development of society. The conclusion is that medical librarians have different and complex perceptions of their occupational identities but quite similar perceptions regarding their duties. One of Anders Øroms identities regarding mediation of information is the identity that suits medical librarians best. After further analysis using Øroms theory the need to add two identities emerged, one identity regarding information service and one about communication. By adding those two identities it is easier to understand the connection to the occupational identity of medical librarians.