Many roads to data exchange.

Federal dollars are spurring efforts for health information exchange, but to say there is more than one approach is an understatement. Providers and payers are taking local, state, regional, and federal routes in search of connected healthcare.

Surveying the RHIO landscape. A description of current RHIO models, with a focus on patient identification.

Across the country, new RHIOs are being formed every day. The 21 RHIOs studied by the work group illustrate the variety of purposes, funding, and record linking methods RHIOs may adopt. As this trend continues to evolve and improve, RHIOs may prove to be a valuable stepping stone on the road to a national system in which a patient's medical data will be available anywhere, anytime.