“At issue is a new payment scheme that pays renal doctors a lump sum, or ‘bundled payment,’ for taking care of dialysis patients. Under the program, the doctors mostly get one fixed payment regardless of how much time they spend with patients, or how many drugs and procedures they use in caring for these folks. These ‘bundled payments’ are a key feature of the Obama health plan. That legislation uses various forms of capitation to shift financial risk onto providers in a bid to cut down on the use of costly, and some argue wasteful, medical services.”