Chronic Kidney Disease, or CKD, occurs when the kidneys are no longer functioning properly. The kidneys are responsible for filtering the blood to get rid of excess toxins, salt, and water. When the kidneys are not functioning properly, that is when patients develop Chronic Kidney Disease. Diabetes and high blood pressure are very common causes of CKD, but there are many other causes as well. There are five stages of CKD, all of which are treated right here in this practice.