Sharp HealthCare's withdrawal from the Centers for Medicare & Medicaid Services' Pioneer ACO program, brings the number of defecting organizations to 10 out of the original 32 and raises questions about how many of the other 22 will remain in the program.
A CMS spokeswoman said in an e-mail late Friday that the agency is not ready to release information about who remains in the Pioneer program.
San Diego-based Sharp said in a statement that its decision to withdraw was based on the Pioneer model's "financially detrimental," formula. Although the five-hospital organization had reduced hospital readmissions, as well as hospital and skilled nursing facility utilization among its 28,000 attributed beneficiaries, the financial performance was just "breakeven."
Alison Fleury, Sharp ACO's CEO, said in a statement that "The Pioneer financial model is based on national financial trend factors that are not adjusted for specific, often unrelated, rate implications that an ACO is facing in a particular region (e.g., San Diego). As a result, the financial impact can be detrimental to the ACO despite favorable underlying utilization and quality performance."
CMS's Center for Medicare and Medicaid Innovation is said to be working on adjustments in 2015. Sharp supports that effort, Fleury said. "It would not be prudent for us to place our ACO at financial risk in 2014 as we wait for these changes to be implemented."