HealthTap, a virtual health care provider, has expanded its digital network to more than 100,000 U.S.-licensed doctors, the company announced Tuesday. The milestone is a critical step in the company’s push to extend virtual care to over 3,000 cities across all 50 states and in more than 100 cities around the world. It also reflects consumers’ rapid uptake of alternate health care options as they turn to online care in addition to the traditional doctor’s office.

“On the internet,” says Ron Gutman, “every headache becomes a brain tumor in four clicks or less.” For Gutman and his colleagues in the world of health tech, this has become a running joke, a cheeky nod to just how far the human imagination can wander after a quick search of benign symptoms. But there’s more than a little truth to it. The fact is: the sheer abundance of health information online makes consulting Dr. Google an altogether flawed—and at times terrifying—first step toward getting better.

HealthTap, a Silicon Valley startup that had focused on the controversial practice of crowdsourcing answers to specific medical questions from a pool of thousands of physicians, on Wednesday unveiled HealthTap Prime, which, for $99 a month, gives people mobile videoconferencing access to doctors from pretty much anywhere in a matter of minutes. Forbes mobile technology reporter Parmy Olson likened it to on-demand car service Uber and to e-commerce heavyweight Amazon.