"We are taking additional steps to enhance servicer transparency and accountability," Reilly said. She said the goal was to increase the rate that troubled home loans were converted into new loans with lower monthly payments.
Industry officials said the new effort would include increased pressure on mortgage companies to accelerate loan modifications by highlighting firms that are lagging in that area.
The Treasury is also expected to announce that it will wait until the loan modifications are permanent before paying cash incentives to mortgage companies that lower loan payments.
Under the $75 billion Treasury program, companies that agree to lower payments for troubled borrowers collect $1,000 initially from the government for each loan, followed by $1,000 annually for up to three years.
The government support, which is provided from the $700 billion financial bailout program, is aimed at providing cash incentives for mortgage providers to accept smaller mortgage payments rather than foreclosing on homes.
The program has come under heavy criticism for failing to do enough to attack a tidal wave of foreclosures. Analysts said the foreclosure crisis is likely to persist well into next year as high unemployment pushes more people out of their homes.
Rising foreclosures depress home prices and threaten the sustainability of the fledgling economic recovery.
A report last week from the Mortgage Bankers Association found that 14 percent of homeowners with mortgages were either behind on payments or in foreclosure at the end of September, a record level for the ninth straight quarter.
The Congressional Oversight Panel, a committee that monitors spending under Treasury's bailout program, concluded in a report last month that foreclosures are now threatening families who took out conventional, fixed-rate mortgages and put down payments of 10 to 20 percent on homes that would have been within their means in a normal market.
Treasury's program, known as the Home Affordable Modification Program, "is targeted at the housing crisis as it existed six months ago, rather than as it exists right now," the report said.
Scott Talbott, senior vice president of government affairs for the Financial Services Roundtable, said the industry supported many of the changes Treasury was proposing.
But he said the foreclosure problem, which began with heavy defaults on subprime mortgages, was expanding to more traditional types of mortgages because of unemployment which has now hit a 26-year high of 10.2 percent.
"The subprime problem has regrettably morphed into an unemployment problem," Talbott said. He said there was no government program to help the unemployed who are in danger of losing their homes but "many private lenders are modifying loans for the unemployed on their own."
Treasury's Reilly said the expanded program would, among other steps, make more aid available to struggling borrowers and expand the number of organizations providing help.