The history of telehealth with a focus on research endeavors is summarized in an AHRQ blog, 20 Years of Impactful Telehealthcare Research from AHRQ’s Digital Healthcare Research Program. Project ECHO, well known in the HIV field, gets a prominent mention as a groundbreaking intervention.
HRSA has funded a range of telehealth efforts over the decades, with an extensive network of Telehealth Resource Centers. COVID-19 spurred the development of Telehealth.hhs.gov, a hub for telehealth information.