This January, the number of people enrolled in health savings accounts coupled with high-deductible health plans (HSA/HDHPs) attained new heights, increasing 25 percent over the course of a year to exceed 10 million, according to an annual census conducted by the Washington, D.C.-based trade group America's Health Insurance Plans (AHIP). However, the rate of enrollment growth actually cooled slightly: HSA/HDHPs saw 31 percent growth from January 2008 to January 2009, when enrollment was 6.1 million and 8 million, respectively. FierceHealthPayer