A transitional logo graphic, still strong and striking, showing the conventional becoming the unconventional. Taking the healthcare symbolism and turning it into your own thing!
Taking the smiling 'cross' and tilting the emblem gives it a sense of comedy within the wordmark, it prepares you for something unusual - a need to look further.
I like the font choice in #9....but the I'm not sure about the illustration. It's a little large, and I'm not sure if I want to use the medical cross. But you're off to a good start.
A clean, corporate look whilst injecting a slightly bent take on the image with the comment bubble, adding a little dose of fun whilst still maintaining a crisp brand impact.
I still really like what you've done in #9 and #19 as far as the font, but the comment bubble and the smiling cross aren't working for me. If you can figure out something else to add to the logo----maybe a scethescope, or a blood pressure cuff, or a thermemoter, I'm just thinking out loud here, something else medical, maybe that might help.