In a study of 10.4 million rural Medicare beneficiaries, researchers discovered continuous growth in telemedicine use between 2010 and 2019 – especially for care provided by nurse practitioners and other non-physician clinicians. Medicare beneficiaries with serious mental illness (e.g., bipolar disorder) used a disproportionate share of all telemedicine visits, with more than 1 in 10 beneficiaries using telemedicine annually in 891 counties in the U.S.