One of the most ubiquitous and profound impacts to the delivery of healthcare over the last three decades has been the introduction of digital technologies to healthcare workflows. Electronic medical records (EMR) have moved from rare to universal. Integration of digital healthcare technology has led to significant growth in data generation from a broad array of medical devices and episodes of care. This flow of data has accelerated methods and technologies for extraction, curation, labeling and analysis leading to new advancements in statistics and data science with the goal of supporting research and quality improvement efforts. With this technological revolution, the role of the physician experts-clinical informaticists-in this area has evolved from champion for use of an EMR system to specialized, multi-dimensional expertise in information technology systems, data science, federal and state healthcare information technology law, and advanced use of the EMR for healthcare delivery, research, quality, population health, and implementation science. These changes are seen throughout pediatric and adult healthcare spaces although some specialties stand to benefit the most from this revolution in healthcare technology. Caring for children with congenital and acquired heart disease requires both a broad infrastructure of imaging, data capture, and EMR systems as well as nuanced understanding of the broad and heterogeneous fields of pediatric and congenital heart disease. This perspectives manuscript introduces clinical informatics to the pediatric cardiology community while endorsing the pediatric cardiologist-informaticist as an essential member of the care model in this new era of pediatric cardiac care. The development and optimization of pediatric cardiology-specific healthcare technology and digital systems of cardiac imaging, procedures, remote monitoring, research/quality improvement databases, EMR optimization, care delivery, process improvement, change management, and leadership will be discussed from the perspective of the pediatric cardiologist-informaticist.