I definitely have mixed feelings.  She right given the state of play in US healthcare that most of the physicals and resulting tests are a waste of time and money.  But they don't have to be.

We are missing a tremendous opportunity to collect information and learn more about human health and afflictions that could benefit us and future generations as well.  It would not have been possible in the past to manage the volumes of data collected but now we can.  For example:

Sergey Brin's Search for a Parkinson's Cure | Wired Magazine | Wired.com:

"This isn’t just another variation on venture philanthropy—the voguish application of business school practices to scientific research. Brin is after a different kind of science altogether. Most Parkinson’s research, like much of medical research, relies on the classic scientific method: hypothesis, analysis, peer review, publication. Brin proposes a different approach, one driven by computational muscle and staggeringly large data sets. It’s a method that draws on his algorithmic sensibility—and Google’s storied faith in computing power—with the aim of accelerating the pace and increasing the potential of scientific research. “Generally the pace of medical research is glacial compared to what I’m used to in the Internet,” Brin says. “We could be looking lots of places and collecting lots of information. And if we see a pattern, that could lead somewhere.”

In other words, Brin is proposing to bypass centuries of scientific epistemology in favor of a more Googley kind of science. He wants to collect data first, then hypothesize, and then find the patterns that lead to answers. And he has the money and the algorithms to do it."