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ACO Pathways to Success: Final Rule Softens Impact
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ACO Pathways to Success: Final Rule Softens Impact

by Amanda Brown and John Harris
January 14, 2019

CMS published its final rule, the “Pathways to Success” for the Medicare Shared Savings Program, in December 2018. CMS’ overall goal is clear and unchanged from the proposed rule: to put the “accountability” back in accountable care by moving ACOs more quickly to downside risk. While the final rule tracks the proposed rule issued in August fairly closely, CMS has “softened” some important areas and, notably, is further encouraging program participation by physician-led ACOs.

Current and future ACOs applying to participate starting July 1 must submit an intent to apply by January 18, 2019. Full applications for the 5+ year agreement period are due on February 19.

Veralon originally identified “6 Big Changes in Proposed ACO Regulations” We discuss below the most significant modifications between the proposed and final rule in those original “big changes.”

Upside Improvements, Downside Risk Unchanged

CMS has increased the potential for shared savings in the BASIC track. In the upside-only levels (Levels A & B), ACOs may now receive up to 40% of the savings generated. This is less than the 50% sharing rate under the current program, but meaningfully more than the 25% initially proposed.

BASIC Levels C, D, and E will receive up to 50% of upside shared savings (compared with 30, 40, and 50% under the proposed rule). Again, this is a notable improvement for Levels C and D, and a further incentive for ACOs ready to take on risk.

The final rule, like the proposed rule, introduces 30% downside risk by an ACO’s third performance year. However, an exception was created in the new rule for New Entrant, Low-Revenue ACOs; this is discussed below.

CMS is Further Encouraging Physician-Led ACOs

Between the proposed rule and the final rule, CMS made changes to specifically encourage participation by Low-Revenue ACOs.  

  • The threshold for defining a Low Revenue ACO was raised; the maximum percentage of spend for assigned beneficiaries captured by ACO participants increased from under 25% to under 35%.
  • New Entrant, Low Revenue ACOs can remain in the upside-only Level B for an extra performance year, unlike High Revenue ACOs, which must take on risk by year 3 of their agreement. “In exchange” (per CMS) for the extra year in upside-only, they will need to spend their last two years in Level E (rather than incrementally progressing through Levels C and D).

Options for Participation – First Agreement Period

Exhibit 1 shows the options for organizations entering their first agreement period under the new terms (those with existing agreements may complete those periods first, under the terms of the prior rule).

Exhibit 1: Entry Levels Permitted under Pathways to Success by ACO Characteristics
(shaded boxes indicate levels with downside risk)

1.High Revenue ACOs with a start date in 2016 or 2017 that entered the Track 1+ model in 2018 may enter Level E rather than Enhanced.

Raising the Bar to Re-enter the Program

The final rule adds new requirements for ACOs applying. They may not be accepted if they:

  • Have not met certain quality performance standards during a previous agreement period (rules differ based on length of experience with the program)
  • Exceeded their updated benchmark by an amount equal to or exceeding the ACO’s negative Minimum Savings Rate

Based on an analysis of 2017 performance data, almost 20% of existing ACOs may be subject to further review because they exceeded their benchmark by more than their MSR or failed to meet quality standards.

In addition to spending and quality criteria, to renew or re-enter, ACOs will need to have repaid shared losses in full within 90 days, as required for any performance year with downside risk.

The final rule suggests that these requirements may be considered met if the ACO demonstrates in its application that it has corrected any of the deficiencies above.

Implications

Ninety percent of current ACOs that could, have chosen to take the extension to July 2019 that will fill the gap until Pathways to Success begins. While many of these ACOs may just be buying time to make a more informed decision, it is possible that fewer ACOs will drop out than originally estimated. These ACOs may recognize the advantages ACOs provide beyond shared savings.

Among these advantages, probably of greatest significance to health systems and hospitals is their role in physician engagement and alignment. ACOs in Levels E and the Enhanced Track also obtain APM status, with the associated payment bonus for physicians. In some markets, there may be other competitive advantages.  Physician-led ACOs may perceive their organization as a tool to maintain physician independence.

Finally, hospital and system participants may also realize that if they won’t take this kind of “voluntary” risk, CMS may impose mandatory risk in another, more problematic, form in the future. For some, it may simply be time to force the issue of shifting to value-based care.