In 2016, roughly 48,000 physicians did locum tenens work. That’s up from 44,000 in 2014, and 26,000 in 2002, per Staff Care’s annual survey. The survey also revealed that 94% of healthcare facility managers used locum tenens physicians during the last 12 months. Locum tenens physicians were mainly used to fill in until permanent doctors were found in certain specialties or to address staff turnover.