Post Showing instead of Page Content

I am using the “Twenty Twelve” theme and for some reason the About page I created is showing the most recent post instead of the page content. The page content shows up fine when I use the editor.

http://skippedpartscounseling.com/about-us/

It seemed to be working a couple days ago, but I checked today and it is showing the wrong content. The other pages on the site do not have this issue.

Any thoughts on how to fix this, or where to begin troubleshooting?

Thanks