Over a thirty year period, my hospital saw approximately the same number of patients, albeit with a pronounced shift to outpatient events. Our doctor numbers remained fairly steady, but with less residents and more staff positions.
But we saw a marked increase in HR, various nursing desk jobs (InfCon, PI, etc.), HIS, and at least a half-dozen Clipboard MBA types from Admin, covering things like Joint Readiness, etc.
None of these guys actually laid hands on a patient.