According to a recent global survey, over 54% of young Millennials (ages 18 to 24)

....said they search online for health information before seeing a physician and rely on doctor ratings; while only 39% of all patients do so, on average.

Source: "The Millennial Patient: New Data Highlights Key Differences Between Millennial and Baby Boomer Healthcare Consumers," Nuance Press Release, August 31, 2015, http://www.nuance.com/company/news-room/press-releases/Differences-Between-Millennial-and-Baby-Boomer-Healthcare-Consumers.docx