CMS actuaries expect Medicare and Medicaid to see faster growth in spending between 2017 and 2026 than private insurance, in part because baby boomers will be aging out of the private insurance market and into Medicare and a higher share of older and disabled Medicaid beneficiaries will contribute to faster spending in that program. The national health expenditures report also projects that drug costs will rise after 2017 as rebates play a smaller role in mitigating net drug prices and...