One big question about the Affordable Care Act has been how much the government will pay in subsidies. A recent report from the Department of Health and Human Services looked into that question, giving some answers about how much people should expect the government to chip in toward their health-insurance premiums.

In the following video, Dan Caplinger, The Motley Fool's director of investment planning and author of the special free report "Everything You Need to Know About Obamacare," talks with Motley Fool health-care bureau chief Max Macaluso about subsidies and how much of the cost of health insurance they'll cover. Dan reveals that 27-year-olds with incomes of $25,000 should expect subsidies to cover about 32% of the cost, cutting their monthly premium costs to $145. For a family of four earning $50,000, the subsidy was about double, cutting costs by 64%.

Dan notes that the biggest savings came in high-cost states such as Wyoming, Alaska, and Mississippi. Subsidies tended to be larger for families than for singles, especially in lower-cost states. The net effect of the subsidies was to balance out disparities across states, going a long way toward flattening out premium costs nationwide.

Max and Dan then turn to the companies that could benefit from subsidies. Insurance companies Humana (HUM -1.41%), UnitedHealth Group (UNH 0.14%), and WellPoint (ELV 0.38%) are all poised to gain if subsidies encourage more people to enroll in Obamacare policies, with WellPoint arguably benefiting the most since it has been most aggressive in embracing Obamacare exchanges. At the same time, Tenet Healthcare (THC 0.46%), HCA Holdings (HCA 0.81%), and other hospital operators could also see big profit gains, as more people having coverage should mean fewer losses for hospitals and other medical providers to absorb as bad debt.