Sollis Health is a private clinic in New York that's staffed 24/7 and equipped to handle most non life-threatening emergencies. The clinic does not take insurance, and instead operates on an annual membership model, where dues run from $1,000-$5,000 a year, depending on a person's age. I visited Sollis's newest location in lower Manhattan, to see what it's really like to go to a "private ER."