With a mega order of 200 B407GXP I don't see Air Methods paying too much attention to passenger size.
Air Methods Buying 200 Bell 407GXP Helicopters | Flying Magazine
I'm surprised to see no comment here on the two fatal HEMS accidents in the US last month.
More US Night HEMS Accidents
But at least the FAA have ensured there will never be another HEMS accident in the US (HAA HAA HAA).