Change Healthcare (known as Emdeon before rebranding in 2015, which followed the purchase of a pre-existing company called Change Healthcare) is a provider of revenue and payment cycle management and clinical information exchange solutions, connecting payers, providers, and patients in the U.S. healthcare system. The name also refers to a company founded in 2007 which subsequently became part of the current conglomerate. The company operates the largest financial and administrative information exchange in the United States.The company is headquartered in Nashville, Tennessee, with more than 89 additional locations throughout the United States, Canada, New Zealand, Israel, Taiwan, and the U.K.