In the 2013 federal elections, Baehrens moved to the German Bundestag via the SPD state list Baden-Württemberg for the Bundestag constituency Göppingen. She has since been a full member of the Bundestag Committee on Health, where she is her parliamentary group's rapporteur on inclusion and European affairs. Since 2018, she has also been serving as chairwoman of its Sub-Committee on Global Health.