Geithner has said extensive changes were needed to make sure that the current financial crisis, the worst in seven decades, is never repeated. The officials who spoke late Tuesday did so on condition that their names not be used because the administration was not ready to unveil a proposal.
Treasury issued a statement late Tuesday that called the dinner "one of a series of meetings with a wide range of relevant constituencies and experts" to seek views on regulatory reform.
"Tonight's outreach meeting was largely attended by academic experts and former government officials. Other meetings have been held with consumer and investor groups and a wide range of financial services and market participants," the Treasury statement said. "No decisions have been made but the administration is actively seeking various viewpoints as it puts together its framework."
The proposal the administration was considering would centralize the enforcement of laws that protect consumers of financial products, such as credit cards, mortgages and mutual funds. That effort currently is spread across a number of federal and state agencies, including the Federal Reserve, the SEC and the Federal Trade Commission.
Under one possible approach, some federal banking agencies might be combined and some powers over consumer products might be consolidated into a new body.
A leading proponent of the commission approach has been Harvard University professor Elizabeth Warren, who currently is serving as the head of the Congressional Oversight Panel for the government's $700 billion financial rescue effort.
Warren argued in a 2007 article that the government needed to do a better job of protecting homeowners who take out mortgages and consumers of other increasingly complex financial products.
Sens. Richard Durbin, D-Ill., Charles Schumer, D-N.Y., and Edward Kennedy, D-Mass., introduced legislation earlier this year that would create a commission like the one proposed by Warren.
Some industry groups already have expressed opposition to the plan.
The Financial Services Roundtable, which represents some of the biggest institutions in the country, has argued that it would be a mistake to separate the regulation of financial products from the regulators who oversee the institutions selling those products.
It was unclear whether the administration will propose creating a new federal agency to house the commission or placing the commission under an existing agency.
The administration is expected to unveil its proposal in the next few weeks as it pushes ahead with a sweeping effort to overhaul the government's financial regulatory system.
The administration already has put forward some broad principles for financial regulatory overhaul, including creation of new powers to allow authorities to take over major financial institutions that represent a threat to the system.