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The new president was facing America's biggest economic crisis since the Great Depression. Key advisers urged him to keep his focus on economic recovery. The opposition party signaled it would wage an all-out fight to block healthcare reform. And his own party was divided on how to proceed. But President Barack Obama charged ahead. “Now is the time to deliver on healthcare,” he told Congress in September 2009. (Meyer, 8/20)

As President Barack Obama heads into the homestretch of his two terms in office, he once again tops Modern Healthcare's ranking of the 100 Most Influential People in Healthcare—the third time he's won the honor. And that's not surprising given his name—courtesy of his most vitriolic opponents—will be forever attached to the most significant expansion of health insurance coverage since the creation of Medicare and Medicaid in 1965. (May, 8/20)