GAO previously reported that in fiscal years 2009 through 2011, the most expensive 5 percent of Medicaid beneficiaries accounted for nearly half of the expenditures for all beneficiaries; others have also found that a small percentage of beneficiaries account for a disproportionately large share of Medicaid program expenditures. These high-expenditure beneficiaries are an extremely diverse popula

As of March 1, 2018, the Center for Medicare and Medicaid Innovation (Innovation Center) had implemented 37 models that test new approaches for delivering and paying for health care with the goal of reducing spending and improving quality of care. These models varied based on several characteristics, including the program covered--Medicare, Medicaid, the Children's Health Insurance Program (CHIP)

Vertical consolidation is a financial arrangement that occurs when a hospital acquires a physician practice and/or hires physicians to work as salaried employees. The number of vertically consolidated hospitals and physicians increased from 2007 through 2013. Specifically, the number of vertically consolidated hospitals increased from about 1,400 to 1,700, while the number of vertically consolida

Medicare and Medicaid consumer protection requirements vary across programs, payment systems--either fee-for-service (FFS) or managed care--and states. Within Medicare, enrollment in managed care through the Medicare Advantage (MA) program must always be voluntary, whereas state Medicaid programs can require enrollment in managed care in certain situations. For example, Arizona requires nearly al

Enrollment in the MA plans GAO analyzed increased by about 6 percent--from 7.9 million to 8.4 million beneficiaries--from April 2010 through April 2011. There was substantial variation by plan type in enrollment levels and how they changed from 2010 to 2011. Enrollment in health maintenance organizations (HMO), which account for about two-thirds of total MA enrollment in 2011, increased by about

Drug coverage was somewhat more limited for benchmark compared to nonbenchmark PDPs and became gradually more restrictive for all PDPs from 2007 through 2010, while pharmacy access was comparable. The average number of drugs covered by benchmark PDP formularies was slightly smaller than the average covered by nonbenchmark PDP formularies--about 5 percent smaller in 2010, for example. Benchmark PD

In 2008, plans in the good health group generally had lower premiums, higher cost sharing for certain services, and fewer additional benefits than plans in the poor health group. Almost half of the plans in the good health group did not have an MA premium for medical or drug coverage, while about one-fifth of plans in the poor health group had no MA premium. Plans in the good health group had hig

High-cost drugs eligible for a specialty tier commonly include immunosuppressant drugs, those used to treat cancer, and antiviral drugs. Specialty tier-eligible drugs accounted for 10 percent, or $5.6 billion, of the $54.4 billion in total prescription drug spending under Medicare Part D plans in 2007. Medicare beneficiaries who received a low-income subsidy (LIS) accounted for most of the spendi

High-cost drugs eligible for a specialty tier commonly include immunosuppressant drugs, those used to treat cancer, and antiviral drugs. Specialty tier-eligible drugs accounted for 10 percent, or $5.6 billion, of the $54.4 billion in total prescription drug spending under Medicare Part D plans in 2007. Medicare beneficiaries who received a low-income subsidy (LIS) accounted for most of the spendi

1) Based on GAO's survey results from 45 of the 47 premium assistance programs, 30 premium assistance programs were funded solely by Medicaid, 6 programs were funded solely by CHIP, and 9 programs were funded by both Medicaid and CHIP. 2) Twenty-five of the 37 premium assistance programs that provided eligibility information covered only low-income individuals--which the Census Bureau defines as