Marilyn Tavenner, head of the U.S. Centers for Medicare and Medicaid Services, plans to step down at the end of February, she told her staff in an e-mail.
As Bloomberg reports, Tavenner didn’t say why she was leaving.
In November, she acknowledged that her agency had made a mistake in its calculation of the number of people enrolled under Obamacare.
The Obama administration said it erroneously calculated the number of people with health coverage under the Affordable Care Act, incorrectly adding 380,000 dental subscribers to raise the total above 7 million.
The accurate number with full health-care plans is 6.7 million as of Oct. 15, a spokesman for the U.S. Department of Health and Human Services confirmed today, saying the U.S. won’t include dental plans in future reports.
“The mistake we made is unacceptable,” Health and Human Services Secretary Sylvia Mathews Burwell said on her verified Twitter account. “I will be communicating that clearly throughout the department.”
The error was brought to light by Republican investigators for the House Oversight and Government Reform Committee, using data they obtained from the U.S. Centers for Medicare and Medicaid Services.
“A mistake was made in calculating the number of individuals with effectuated Marketplace enrollments,” said Kevin Griffis, a spokesman for the U.S. Health and Human Services Department. “Individuals who had both Marketplace medical and dental coverage were erroneously counted in our recent announcements,” he said in an e-mail.
The new count puts enrollment short of a 2013 estimate by the Congressional Budget Office, adopted last year as a goal by the Obama administration, that 7 million people would be enrolled this year.
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