Mr Webster will succeed former CFO Thomas Hess, who has resigned to pursue another business opportunity.
Most recently, Mr Webster has served as managing director of investment banking division healthcare group at Broadpoint Capital. He earned his Master of Business Administration in finance from The Wharton School.
Michael Dougherty said: “His blend of financial expertise and operational experience represents a terrific addition to our management team as we launch our first product and continue the development of our expanding product pipeline.”