What GAO Found
The Patient Protection and Affordable Care Act (PPACA) requires applicant information be verified to determine eligibility for enrollment or income-based subsidies. To implement this verification process, the Centers for Medicare & Medicaid Services (CMS) created an electronic system called the “data services hub” (data hub), which, among other things, provides a single link to federal sources, such as the Internal Revenue Service and the Social Security Administration, to verify consumer application information.
Although the data hub plays a key role in the eligibility and enrollment process, CMS does not, according to agency officials, track or analyze aggregate outcomes of data hub queries—either the extent to which a responding agency delivers information responsive to a request, or whether an agency reports that information was not available. In not doing so, CMS foregoes information that could suggest potential program issues or potential vulnerabilities to fraud, as well as information that might be useful for enhancing program management.
In addition, PPACA also establishes a process to resolve “inconsistencies”—instances where individual applicant information does not match information from marketplace data sources. GAO found CMS did not have an effective process for resolving inconsistencies for individual applicants for the federal Health Insurance Marketplace (Marketplace).
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