Here are few logo design concepts in different styles (#141, #142, #143, #144, #145, #146 and #147), that are a bit "out of the box" and away from generic/overused "swooshy people", that seem to be dominant on your contest so far! I've used cleaner sans sherif font that fits more with your website's layout, as well as colors.
Hope you'll like some of them, and feel free to suggest improvements! Thank you!
Yes, it is a bit more dynamic in appearance, and it was my first pick as well,...maybe I would go with orange, or light blue instead of green accent color,...it would stand out more from other medical related logos!
I'm offering a bit different representation of a figure, since I don't use generic "swooshy people" (this is actual term within serious design community), that will make your logo look like hundreds of others!
Hope this helps a bit! Thank you for the feedback!