GAO report: Documentation requirement led to decline in Medicaid enrollment
States reported that the citizenship documentation requirement resulted in barriers to access to Medicaid for some eligible citizens. Twenty-two of the 44 states reported declines in Medicaid enrollment due to the requirement, and a majority of these states attributed the declines to delays in or losses of Medicaid coverage for individuals who appeared to be eligible citizens.
Of the remaining states, 12 reported that the requirement had no effect and 10 reported they did not know the requirement's effect on enrollment. Not all of the 22 states reporting declines could quantify enrollment declines due specifically to the requirement, but a state that had begun tracking the effect identified 18,000 individuals in the 7 months after implementation whose applications were denied or coverage was terminated for inability to provide the necessary documentation, though the state believed most of them to be eligible citizens.
Further, states reporting a decline in enrollment varied in their impressions about the requirement's effect on enrollment after the first year of implementation. States' enrollment policies and whether an individual was an applicant or a beneficiary may have influenced the requirement's effect on access to Medicaid. For example, states that relied primarily on mail-in applications before the requirement were more likely to report declines in enrollment than states where individuals usually applied in person. In addition, the requirement may have more adversely affected applicants than beneficiaries because applicants were given less time to comply in some states and were not eligible for Medicaid benefits until they documented their citizenship
GAO-07-889, June 28, 2007