 In 2013, health insurance benefits will not be available to employees who work fewer than 30 hours per week.Experts in labor and health care observed that the change will shift the burden of providing health care for Walmart employees to the federal government, as eligibility for Medicaid has been expanded under the Patient Protection and Affordable Care Act (PPACA or ACA).An analysis of Walmart's health plans as compared to plans offered in the ACA's health insurance marketplaces found that Walmart's plans have larger networks of providers than most plans in the marketplaces, and that gross premiums (before accounting for tax credits) are less expensive under Walmart's plans.