I recently got a physical exam, including ultra sound, two urine samples, and bloodwork, at a private doctor in Austria and it cost 150€. You Americans are crazy.
I'm not sure how a physical would be more than 15 minutes of work. Lab techs? Standard blood tests are all automated, the most complicated part is putting the stickers on the vials. Yes, someone needs to calibrate the machine, but the machine processes 1000s of samples per day. I just checked, the price for a standard blood panel at a local lab is 14€. It's really not a complicated procedure.
Drivers? Janitors? What the hell are you paying those guys to justify a $1000 bill? And you really don't need to hire a driver to get a box of samples to the lab at the end of the day.