Shortly before the passage of President Obama’s stimulus bill in 2009, Newt Gingrich’s political committee put out a video of Mr. Gingrich denouncing it as a “big politician, big bureaucracy, pork-laden bill.”

“It should be stopped,” he said.

But at the same time, Mr. Gingrich was cheering a $19 billion part of the package that promoted the use of electronic health records, something that benefited clients of his consulting business. “I am delighted that President Obama has picked this as a key part of the stimulus package,” he told health care executives in a January 2009 conference call.

After the bill was passed a month later, Mr. Gingrich’s consultancy, the Center for Health Transformation, joined two of its clients, Allscripts and Microsoft, in an “Electronic Health Records Stimulus Tour” that traveled the country, encouraging doctors and hospitals to buy their products with the billions in new federal subsidies. “Get Engaged, Get Incentives,” one promotion read.

As Mr. Gingrich runs for president, he is working to appeal to Republican primary voters suspicious of big-government activism, especially in the realm of health care. But interviews and a review of records show how active Mr. Gingrich has been in promoting a series of recent programs that have given the government a bigger hand in the delivery of health care, and at the same time benefited his clients.