Indiana isn’t usually considered a hub of technological innovation. However, about 2,000 miles from Silicon Valley, it has solved a problem that has flummoxed even high-tech states like California.

Indiana has built one of the most advanced “health information exchanges,” a computer network that lets doctors from different practices swap patients’ electronic medical records with the ease of a mouse click.

The amount of medical data sloshing around Indiana makes it a national model. The lifesaving benefits of doctors being able to instantly pull up patients’ medical histories, such as medications and lab results, is unquestioned. But Indiana’s success comes with a caveat: The state has no law mandating patient consent before doctors share patient data with exchanges.

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