I experienced something similar a couple weeks ago when I went to a local dermatologist for a skin cancer screening. The office was gorgeous. Top of the line everything, spacious, just incredible.
When the doctor came in, he was a whirlwind - he glanced at my back, the fronts of my arms, and my face ... then pronounced me in perfect health and "see you again next year!"
He billed my insurance just under $300 for an exam that took under 5 minutes (including the consult with his nurse to point out anything I was worried about) and was worth almost nothing.
A skin exam shouldn't take more than 20-30 minutes, but if the doc doesn't bother to look at your scalp, or the inside of your mouth, the soles of your feet, etc ... it is not really screening for much.
$100/minute is why his office was magnificent. What a scam.