The Trump administration is proposing steps aimed at improving patients’ access to their own health data, bolstering efforts to bring information including insurance claims, hospital and doctor records to digital devices such as smartphones.

Federal health regulators unveiled two major proposed regulations closely watched by health and technology companies, amid a growing flood of health data that has become an ever-more-valuable asset. The draft rules touch on a broad array of issues, including technology standards that are supposed to help unlock digital data stored in the electronic health records used by hospitals and doctors to track patients’ care.