From February 21, 2006, through September 24, 2013, the Centers for Medicare & Medicaid Services required that bariatric surgery be performed only in hospitals that had been designated as a Center of Excellence (COE). The effect of this certification requirement on access to bariatric surgery has been reported only anecdotally. Bae et al investigate whether the COE certification requirement proved to be a barrier to patients’ access to bariatric surgical procedures. Using the National Inpatient Sample, they retrospectively identified patients who underwent bariatric surgery from January 1, 2006, through December 31, 2011. Logistic regression and χ2 tests were used to examine differences in patients’ sociodemographic characteristics over time. The result suggests that the COE certification requirement did not limit patients’ access to bariatric surgery based on demographic characteristics.