From private health insurance plans to government-sponsored programs, there are a lot of changes underway in the country's health care system. Research shows that Americans are feeling optimistic about the future state of health care in the country.

A recent Gallup poll reveals that 40 percent of those surveyed indicated that they had "a great deal" or "quite a lot" of confidence in the country's medical system. The current optimism levels are hovering around where they were between 1995 and 2006, according to Gallup. During 2003 and 2004, confidence levels grew to 44 percent.

The poll also found that confidence levels in health maintenance organizations remains essentially the same last year, increasing slightly by one point to 19 percent.

Such findings are good news, given the government's efforts to overhaul the healthcare system. Many new provisions under the Affordable Care Act have already been implemented. A number of other provisions are set to take effect in the future, including the requirement that everyone have health insurance in 2014.

Additionally, the poll reveals that Americans are more optimistic about the healthcare system than they are about 11 other institutions, including the U.S. Supreme Court.