By Emily P. Walker, Washington Correspondent, MedPage Today WASHINGTON — Enrollment in high-deductible health insurance plans that are tied to health savings accounts (HSAs) grew by nearly 14% in the past year, according to America’s Health Insurance Plans (AHIP), an industry trade group. As of January 2011, 11.4 million Americans are covered by high-deductible plans, which are eligible to be coupled with an HSA that can be rolled over from year to year and can be used at any time to pay medical expenses. AHIP, which takes an annual census of enrollment in HSA-eligible plans, found that enrollment in the plans has nearly doubled over the