A Successful Launch and Immediate Buy-In Have Physician Groups Hopeful That ACOs Will Solve Many of Healthcare's Ills
Bryn Nelson, PhD
Introduction
Throughout much of 2011, ambivalence plagued efforts by the Centers for Medicare & Medicaid Services (CMS) to expand the federal government's reach into integrated care delivery to help improve patient outcomes while lowering costs. Critics panned the initial draft of regulations for a large accountable-care demonstration project called the Shared Savings Program, and prominent medical groups announced their intention to sit on the sidelines.
At the start of 2013, the atmosphere couldn't be more different. CMS won over most of its critics with a wellreceived final version of the rules that provided more incentives for groups to form accountable-care organizations (ACOs), and the presidential election provided more clarity about the future of healthcare reform. Medical groups around the country are readily jumping on the ACO bandwagon, with its emphasis on shared responsibility among provider groups for a defined pool of patients.
Few medical groups have enough data to suggest whether their varied approaches to managing patient populations will lead to better-quality care that's also more affordable; the first batch of Medicare ACO data isn't expected until later this spring. And healthcare experts differ on which models and components are likely to make the biggest long-term impact; even the precise definition of an ACO remains a moving target. But industry observers say they're surprised and encouraged not only by the speed with which the movement has taken off, but also by the breadth of models being investigated, the strong engagement of the private sector, and a spreading sense of cautious optimism.
"This is actually moving faster than I thought—faster than I think anybody thought," says SHM Public Policy Committee chair Ron Greeno, MD, FCCP, MHM.
Although CMS still is in the beginning stages of its work and has focused most of its efforts on reviewing applications and providing feedback on organizations' historical expenditure and utilization patterns, agency officials say the ACO initiative has not encountered any unexpected setbacks. "As with any new program, there are bumps along the way, but I don't think we've experienced anything that is out of the ordinary," says John Pilotte, director of Performance- Based Payment Policy in the Center for Medicare. "We're pretty happy with where we are with the program."
The Shared Savings Program, which Pilotte describes as "an easier on-ramp" to population management for providers and offers low financial risk in exchange for a modest level of shared cost savings, is proving especially popular. Combined, several hundred organizations submitted applications for the program's second and third rounds, which began July 1, 2012, and Jan. 1, 2013, respectively.
"Two hundred twenty ACOs are currently up and running, and we expect to continue to add ACOs to the program annually," Pilotte says.
Last January, another 32 groups joined Medicare's Pioneer ACO program, designed for more experienced organizations with more resources. The groups assume more risk, and in return are more handsomely rewarded if they meet benchmarks.
All told, the tally of confirmed ACOs in the U.S. reached 428 by the end of January, according to Leavitt Partners, a Salt Lake City-based healthcare consulting firm that is tracking the growth of accountable care (see "A Sampling of Significant ACO Programs," below). David Muhlestein, an analyst with Leavitt Partners, says private ACOs now account for roughly half of that total, a trend driven by their ability to experiment with different approaches and more easily track costs through clearly defined patient populations.
The central role for hospitalists within most ACOs is rooted in the reality that hospital care is the most expensive part of healthcare. Successfully implementing a plan to coordinate care and prevent hospital readmissions might not correlate directly with improved quality metrics, but it can lead to significant savings.
The diverse ACO models now being tested, however, could result in varying responsibilities for hospitalists, depending on the focal points of the sponsoring entities. After patients have been admitted to a hospital, for example, many hospitalists assume responsibility for managing inpatient care and the inpatient-outpatient handoff. A main goal of a physician-owned medical group, such as an independent practice association (IPA), by contrast, is to keep patients out of the hospital altogether, placing more of the focus on primary and specialty care. An IPA that forms an ACO, Muhlestein says, might hire its own hospitalists to monitor the care of patients in affiliated hospitals while using the association's approach to limiting costs.
ACO participants also have varied widely in the effort expended to get up to speed. "Some people have said they haven't had to make any major changes to their organization, while some people have had to drastically think how they provide care," Muhlestein says. In general, many of the former have had the luxury of working within relatively integrated facilities and building upon existing frameworks, whereas many of the latter previously toiled away in silos and are now scrambling to establish more cohesive working relationships from scratch.
