Crathorne will work on mental health and cardiovascular projects.
She had been freelancing for three months on a project with Burson-Marsteller and previously worked as a project manager at two med ed specialists: Hayward Medical Communications and Chameleon Communications International prior to that.
Crathorne reports to Sarah Winkless, who has just joined as the division's first comms director (PRWeek, 18 April).
Crathorne's hire is part of the agency's plan to present med ed work to stakeholders such as journalists. This work had been aimed at medical experts and patient groups.