Dear Startup Investor, Care at Hand is based in Washington, D.C. I’m in Baltimore, an hour away. So when Dr. Andrey Ostrovsky, the founder and CEO of Care at Hand, invited me to dinner, I hopped in my car, drove down I-95 and met him at the Blue Duck Tavern in Georgetown. We ate. We drank. And we talked for a couple of hours. This is what I found out. First: A Quick Refresher Care at Hand was put…