Around 115,000 people in 36 states may lose their private health insurance under Obamacare after 30 September, over unresolved data problems such as citizenship or immigration status, said the Obama administration.
The administration also said that insurance costs will be changed for another 363,000 people, over income data problem.
Officials noted that around 430,000 income-related discrepancies are still in the process of being resolved and people with unresolved issues can solve their problems by providing correct information before 30 September.
If the immigration status is clear, people without insurance will be eligible for coverage, under President Barack Obama’s Affordable Care Act.
Through the federal and state marketplaces, around eight million people have been enrolled for the healthcare insurance in 2014.
Critics say that the federal data collection systems and federal marketplace website, HealthCare.gov, have also created problems for the users.
However, the US Centers for Medicare and Medicaid Services (CMS) noted that the number of people with data problems has been decreasing from June.