Teladoc Inc., which lets patients meet with doctors over the Internet, will overcome the loss of an insurer deal and prove its stock rout is overdone, chief executive Jason Gorevic said. The shares have slid more than 25 percent since Deutsche Bank said Friday that a Pennsylvania insurer didn't plan to renew a contract with Teladoc. Gorevic said that deal with Highmark Health Inc. accounted for about $1.5 million in annual revenue. The company is projected to have sales of $74.8 million this year, according to the average of analysts' estimates compiled by Bloomberg.