Silicon Valley-based Healtheon, a 1990s dot-com merges with WebMD to create Healtheon/WebMD. The combined company buys Envoy, a major health care transactions clearinghouse, from Quintiles Transnational in 2000.
Three years later, WebMD acquires claims management firm Medifax-EDI and combines it with WebMD Envoy, the company’s Nashville-based transaction services business.
