The National Kidney Foundation, Inc. (NKF) is a voluntary health organization in the United States, headquartered in New York City, with over 30 local offices across the country. Its mission is to prevent kidney and urinary tract diseases, improve the health and well-being of individuals and families affected by these diseases, and increase the availability of all organs for transplantation. NKF is the largest, most comprehensive, and longstanding patient-centric organization dedicated to the awareness, prevention and treatment of kidney disease in the United States.