What is the estimated amount of people who are Medicaid eligible? Is there any reasearch out there?

Question

I am work for several hospitals in Florida and I am trying to determine how many people may be eligible for Medicaid, but just don't apply.

Answer 1

Medicaid provides care to over 53 million low-income Americans, three-fourths of whom are children and adults and 25 percent of whom are elderly and disabled. However, over 69 percent of all Medicaid spending is allocated to the elderly and disabled.
Total federal and state Medicaid expenditures will reach $349 billion in 2007, of which 57 percent ($199 billion) is federal and 43 percent ($150 billion) is state.
Medicaid accounts for 22 percent of all state spending—the largest expenditure in state budgets, exceeding education and other important state services.
Medicaid has grown from 0.3 percent of GDP in 1970 to 1.5 percent in 2004 and, combined with Medicare, could reach as high as 12.6 percent by 2050.

Taken directly from The Heritage Foundation website. The Heritage Foundation is a research and educational institute - a think tank - whose mission is to formulate and promote conservative public policies based on the principles of free enterprise, limited government, individual freedom, traditional American values, and a strong national defense.

The link to Health and Human services that discloses all of government's facts/figures does not currently take you anywhere.