Marilyn Tavenner will step down from her post as administrator at the Centers for Medicare and Medicaid Services in February, agency officials confirmed to The Huffington Post on Friday.
Tavenner oversaw the Affordable Care Act rollout, the early stages of which were plagued with technical glitches.
"If I could rewind the clock, we would have had a smoother (HealthCare.gov) implementation last October," Tavenner told The Huffington Post. "(But), we were able to make progress. We're now seeing data out there, showing reduction of patient harm and increasing quality."
Her acting replacement, Andrew Slavitt, was brought in to address HealthCare.gov's problems in 2014. Slavitt will still need Senate confirmation in order to become a permanent replacement for the post.