Colorado has not released its own estimates and has declined to commit to the key building block of expanding health insurance, saying it needs to hear more program details from federal officials.
The federal share of insuring 225,000 new Medicaid lives would be about $10.3 billion over the next 10 years, the Kaiser report said.
Colorado's spending estimate of $858 million could be reduced because of less need for uncompensated care payments to hospitals, though Kaiser said it was less clear what each state could save that way. The foundation said its general assumptions meant Colorado's share of Medicaid expansion could be cut by another $277 million, to $581 million.
Given that Colorado is already expected to spend $30.3 billion of its own money on Medicaid over the 10 years, the expansion would add 1.9 percent to the state budget, the report said.
Read more of Michael Booth's story in the Denver Post.
(Copyright 2012 The Denver Post)