Wow, Healthcare.gov has a complicated task... [View all]

[dkf]

The amount of subsidy depends on a consumer's income. To ensure each consumer receives the correct subsidy, the exchanges must request income data from the Internal Revenue Service.

The exchanges are only open to American citizens and documented immigrants. To verify an applicant's citizenship and immigration status, an exchange must first verify a customer's identity with the Social Security Administration, and then check her immigration status with the Department of Homeland Security.

The exchanges must also check to make sure applicants are not already enrolled in another government health insurance program, which would make them ineligible for Obamacare. That means retrieving data from the Veterans Health Administration, the Department of Defense, the Office of Personnel Management, and the Peace Corps. It also means checking with a state's Medicaid and Children's Health Insurance Program agencies to see if an applicant is already enrolled in one of those programs.

Finally, once a customer purchases health insurance, the exchange must provide her information to the insurance company she has chosen. Insurance companies across the country have been scrambling to integrate their own computer systems with the exchanges.

http://www.washingtonpost.com/blogs/the-switch/wp/2013/10/09/heres-everything-you-need-to-know-about-obamacares-error-plagued-web-sites/