The Impact of the Affordable Care Act on Medicare Advantage Plan Availability and Enrollment

被引：17

作者：

Afendulis, Christopher C. ^{[1
]}

Landrum, Mary Beth ^{[1
]}

Chernew, Michael E. ^{[1
]}

机构：

[1] Harvard Univ, Sch Med, Dept Hlth Care Policy, Boston, MA 02115 USA

来源：

HEALTH SERVICES RESEARCH | 2012年 / 47卷 / 06期

关键词：

Medicare; managed care; payment policy;

D O I：

10.1111/j.1475-6773.2012.01426.x

中图分类号：

R19 [保健组织与事业（卫生事业管理）];

学科分类号：

摘要：

Objective To assess the impact of the Patient Protection and Affordable Care Act's (ACA) changes in Medicare Advantage (MA) payment rates on the availability of and enrollment in MA plans. Data Sources Secondary data on MA plan offerings, contract offerings, and enrollment by state and county, in 20102011. Study Design We estimated regression models of the change in the number of plans, the number of contracts, and enrollment as a function of quartiles of FFS spending and pre-ACA MA payment generosity. Counties in the lowest quartile of spending are treated most generously by the ACA. Principal Findings Relative to counties in the highest quartile of spending, the number of plans in counties in the first, second, and third quartiles rose by 12 percent, 7.6 percent, and 5.4 percent, respectively. Counties with more generous MA payment rates before the ACA lost significantly more plans. We did not find a similar impact on the change in contracts or enrollment. Conclusions The ACA-induced MA payment changes reduced the number of plan choices available for Medicare beneficiaries, but they have yet affected enrollment patterns.

引用

页码：2339 / 2352

页数：14

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