Edward C Rieker, Daniel K Mansfield: Automated system and method for providing real-time verification of health insurance eligibility. Envoy Corporation, Nixon & Vanderhye P C, November 3, 1998: US05832447 (243 worldwide citation)

Data from a health care provider computer system is used to automatically request real-time electronic insurance eligibility verification information from health care insurance payors. A patient health insurance verification computer system is operatively connected to a patient registration computer ...