DaVita HealthCare Partners Inc. provides kidney dialysis services for patients suffering from chronic kidney failure, or end stage renal disease (ESRD) in the United States. It primarily operates kidney dialysis centers; and provides acute inpatient dialysis and related lab services primarily in dialysis centers and contracted hospitals. The company offers outpatient, home-based, and hospital inpatient hemodialysis services; ESRD laboratory services; and operates or provides management and administrative services to outpatient dialysis centers that are minority owned by the company or wholly owned by third parties. In addition, the company offers DaVita Rx, a pharmacy that provides oral medications to patients with ESRD; infusion therapy services; disease management services; vascular access services; ESRD clinical research programs; and physician services, as well as manages and operates medical groups and physician networks in California, Nevada, Florida and New Mexico. As of December 31, 2012, it operated or provided administrative services through 1,954 outpatient dialysis centers in 44 states in the United States and the District of Columbia. The company was formerly known as DaVita Inc. and changed its name to DaVita HealthCare Partners Inc. in November 2012. DaVita HealthCare Partners Inc. was founded in 1994 and is headquartered in Denver, Colorado.