"I have apologized to Mr. Stupak and also apologize to my colleagues for the manner in which I expressed my disappointment about the bill. The House Chamber is a place of decorum and respect. The timing and tone of my comment last night was inappropriate," he said.
Stupak and others agreed to vote for the health care bill in exchange for an executive order from Obama affirming no federal funding for elective abortion.
Some components of the health care bill will take effect right away, including helping older Americans pay for prescription drugs and preventing insurance companies from denying coverage to children based on pre-existing conditions.
Individuals with incomes of $200,000 or higher, and families with a combined income of $250,000 or higher, will see an increase in taxes.
By 2014, most Americans would be required to purchase health insurance or face penalties. Small businesses and the uninsured would have the option of shopping for coverage in health insurance exchanges -- marketplaces in which people could shop for and compare insurance plans. Those exchanges would be implemented in 2014. The bill greatly expands Medicaid and subsidies to the poor. Insurance companies would not be able to place lifetime caps or deny coverage to patients based on pre-existing conditions.
ABC News' Sunlen Miller, Jake Tapper and Jonathan Karl contributed to this report.