The Baucus delivery reform ideas revolved around two central aims. One was to reward Medicare providers who deliver care more efficiently and penalize those that don't. The Reid bill upholds the major proposals Baucus offered to advance that goal. For instance, hospitals under current law must report on their performance in treating patients for common conditions like heart problems and pneumonia; under the bill, their Medicare payments, for the first time, would be affected by their ranking on those reports. Hospitals would also be penalized if they readmit too many patients after surgery or allow too many to acquire infections while in the hospital itself. Another provision would begin the process of applying such "value-based purchasing" toward other providers like hospice providers and inpatient rehabilitation facilities.

With physicians, the Reid plan takes a step back from the Finance Committee bill but still a long step beyond current law. The Finance Bill proposed automatic reimbursement reductions for doctors who order up the most care for Medicare recipients with similar medical and demographic characteristics. That was meant to respond to the research showing big disparities in spending on medical services for similarly-situated patients in different communities. But, Democratic sources say, that proposal ran into charges that it would promote rationing-and even function as "a death panel by proxy"-by compelling doctors to arbitrarily reduce care. So the final bill takes a less direct route toward a similar end. It requires Medicare to begin studying the utilization patterns of doctors participating in the program. And then it establishes a "values based payment modifier" that would, in a budget-neutral manner, increase reimbursements for physicians found to deliver high-quality care at lower cost, and reduce them for physicians at the other end of that spectrum. "It will, we believe, have the same net effect [as the original proposal]," said the Democratic aide. "It should change behavior around that threshold."

The other set of Baucus proposals were intended to promote more coordination among providers. These have survived almost verbatim into the final bill. The bill encourages groups of providers to establish doctor-led "accountable care organizations" to more comprehensively manage patients' care by allowing them to share in any savings for Medicare they produce. It also establishes a voluntary national pilot of "bundled" payments that would encourage hospitals, doctors and other providers to work more closely together. Another pilot program would test coordinated home-based care for chronically ill seniors.

Finally, the Reid bill maintains the two powerful institutions the Finance legislation proposed to promote these reforms and develop new ones. The one that's attracted the most attention is an independent "Medicare Advisory Board." Under the Senate bill, that board would be required to offer cost-saving proposals when Medicare spending rises too fast; Congress could not reject its proposals without substituting equivalent savings. Since the board would be prohibited from offering changes that raise taxes or "ration care," and since the legislation initially exempts hospitals from its recommendations, it could choose to promote the sort of payment reforms the bill establishes. (More prosaically it might also clear away some of the expensive coverage mandates that Congress imposes on Medicare under pressure from different elements of the medical industry). Given the limitations imposed on the commission, an equally important means to expand these reforms might be a second institution the legislation creates: a Center for Medicare and Medicaid Innovation in the Health and Human Services Department. Though this center has received much less attention than the Medicare Commission, it could have a comparable effect. It would receive $1 billion annually to test payment reforms; in a little known provision, the bill authorizes the HHS Secretary to implement nationwide, without any congressional action, any reform that department actuaries certify will reduce long-term spending. While the House bill omitted the Medicare Commission (a top priority for Obama) it included the innovation center.