Dan Dietrich, MD, a family practice physician at Elmwood Family Care Clinic, Alegent Health, Omaha, NE; and Henry Zach, President, Health Data Card (HDC), discuss the results of a clinical study of 500+ patients using smart cards holding comprehensive healthcare data (demographics, insurance, immunizations, allergies, medications and next of kin). Data is secure, updateable by physicians, patient-controlled, and readable by providers at no cost.