The Obama administration is “cooking the books” while touting its numbers on Obamacare, Wyoming Republican Sen. John Barrasso says. And even though there are Democrats working on “fixes” to the president’s signature healthcare law, “it is not fixable.”

Last week, the Obama administration reported 6 million people had signed up for insurance, and that it expected its initial goal of 7 million customers by March 31 will be filled as people sign on at the last minute.

But Barrasso, a physician, told “Fox News Sunday” host Chris Wallace that the number of people who have paid for their coverage is lower than the White House admits, and so is the number of previously uninsured people.

“I don’t think [six million] means anything,” said Barrasso. “I think they’re cooking the books on this. People want to know the answers to that. They also want to know, when this is all said and done, what kind of insurance will those actually have?”He said that even though people may have insurance, “will they be able to keep the doctor that they want? How much more is it going to cost them? And we know that the best cancer hospitals in the country want very little to do with people that actually buy this insurance on the Obamacare exchanges.”

Administration guidelines for the success of Obamacare say that 38 percent of the people who sign up need to be young and healthy so the plans can be funded. However, only about a fourth of them are young, said Wallace.