I'm David Iberri, a hematologist/oncologist in California. I became a Wikipedian in 2004 and have been hooked ever since, although my activity here has recently been in spits and spurts. I typically contribute to medicine-related articles. I'm also excited to have developed a couple of tools that some have found useful:
I also cofounded Wiki Journal Club which reviews seminal trials in medicine, and developed Journal Club for iPhone.