The majority of renal failure in the US is the result of diabetes or hypertension. The huge increase in the number of dialysis patients is overwhelmingly attributable to these two causes. In the vast majority of these cases, renal failure can be prevented with relatively inexpensive intervention to better manage the primary condition.
In most other developed countries, it is politically straightforward to spend $20,000 a year on coaxing and cajoling a patient into managing their diabetes better in order to prevent them from becoming a $70,000 a year dialysis patient. Needless to say that the benefits to this approach are greater than just a cost saving.
The United States has a quite peculiar set of popular attitudes to healthcare. It is clear that a large number of US citizens believe that healthcare ought not be a universal right, but most also find it unpalatable to simply allow people to die of preventable diseases. Consequently, cheap early intervention to preserve health is often shunned in favour of expensive, late intervention to prevent death. To my mind the most egregious example of this is drug abuse and alcoholism - huge amounts are spent on ER care for disastrously ill addicts, but little is spent on basic social work and rehabilitation.
I can't honestly say that I understand the mindset that completely opposes government involvement in healthcare, but it seems obvious to me that the current situation is the worst of all worlds - the worst outcomes and the highest costs. I don't know how healthcare became such an ideological battleground, but it's not doing anyone any good - not patients and certainly not the taxpayer. I really don't want to be negative, but I have no idea how this stalemate can be broken.