This is probably a solid idea (I have a friend working on a similar app) but I've gotta say, the user interface looks horrendous. Form fields slapped anywhere, nothing is aligned with anything else, the sizes of UI elements are all over the place so there's no visual hierarchy, it looks incredibly amateurish.

I know that for an app like this doctors are probably looking at functionality first, but it'd be nice if one of the first iPad apps in this niche actually looked decent. Right now it looks like Interface Builder exploded.