PURCHASE, N.Y.--(BUSINESS WIRE)--Teladoc Inc. (NYSE: TDOC), the first and largest telehealth platform in the United States, announced today the closing of its previously announced initial public offering of 8,250,000 shares of its common stock at a public offering price of $19.00 per share. In connection with the initial public offering, the underwriters exercised in full their option to purchase an additional 1,237,500 shares of common stock. As a result, the total initial public offering size