Regional disparities in mental health care are well known and become apparent in inadequate treatment capacities and long waiting time for psychotherapeutic treatment. Hence, the authors assume that there is a shift from curative to rehabilitative care. Accordingly, the purpose of this study was to analyze the relationship between regional treatment capacities and the use of psychosomatic rehabilitation on behalf of the German Statutory Pension Insurance Westphalia (i. e. DRV Westfalen) in 2013.