Never heard of him? Or his Lyndhurst-based company, Vitals? Don't worry, plenty have. Rothschild founded his health care–based site in 2008 as a place where people could get up-to-date info on doctors, hospitals and procedure prices. The ACA, which will put more decisions in the hands of consumers, should explode his business. Not that it already hasn't taken off: The site already averages 12 million unique visitors a month.