Dr. Carroll is a health services investigator with an interest in improving pediatric outcomes. He co-designed the Child Health Improvement through Computer Automation (CHICA) system that has improved pediatric care in developmental screening, autism screening, type 2 diabetes, obesity, attention deficit and hyperactivity disorder, and more. In addition to studying the use of information technology to improve pediatric care, his research also focuses on decision analysis and areas of health policy including cost-effectiveness of care and health care financing reform.
He is the author of The Bad Food Bible, published last year, and the co-author of three additional books on medical myths. In addition to being a current Contributing Opinion Writer at The New York Times and a previous contributor to The Upshot at the New York Times for six years, he has written for many other major media outlets and is co-Editor-in-Chief at The Incidental Economist, an evidence-based health policy blog. He also has a popular YouTube channel called Healthcare Triage, where he talks about health research and health policy.