Nearly half a million health insurance applications have been filed on ObamaCare's enrollment site, the Associated Press reported late Saturday.
Without enrollment figures, it is difficult to pinpoint whether the administration is on track to meet its goal of seven million enrollees during the six-month sign-up period.
HHS Secretary Kathleen Sebelius is under intense scrutiny as the enrollment system continues to face severe problems.
Earlier in the week, Obama said he was "not happy" with the site's rocky rollout and was seeking "accountability" from federal employees working to fix the glitches.
The president is expected to address the site's problems Monday during a health care event at the White House.