McKay Thomas’s newest venture, First Opinion, aims to solve a different need for new parents — a direct line to doctors who can answer questions about everything from nutrition to childhood development. Backed by $1.2 million in funding from the likes of Greylock Partners and Felicis Ventures, the San Francisco-based company connects moms to a network of full-time doctors, who are also moms, via its free app and $9 monthly subscription service. Entrepreneur spoke with Thomas about how technology can reinvent the doctor visit.