Hi
Nick has described exactly what I was thinking.
In the Category you can set out the "layout grid". Set the number of columns that you want say 4 and the "leading count" to the number of therapists. Within K2 you set the size of images within the parameters before uploading the images so you need to work out the image size that you need first! In the layout grid you select the image size from "small" " medium" etc. So you small image might need to be 180px wide for 4 columns or 320px wide for 3 columns (just examples depends on your template width).
You can display just the image - a title (name) and the image or title, image and into text.
The K2 tutorials show how to do this
www.ostraining.com/courses/class/joomla-25/k2/view/ By careful selection of the number of columns they should all turn out the same length. The images will all be the same size and the intro text the same length the only variable is the length of the name!
Regards