With the Supreme Court giving President Obama’s new health care law a green light, federal and state officials are turning to implementation of the law — a lengthy and massive undertaking still in its early stages, but already costing money and expanding the government.

The Health and Human Services Department “was given a billion dollars implementation money,” Republican Rep. Denny Rehberg of Montana said. “That money is gone already on additional bureaucrats and IT programs, computerization for the implementation.”

“Oh boy,” Stan Dorn of the Urban Institute said. “HHS has a huge amount of work to do and the states do, too. There will be new health insurance marketplaces in every state in the country, places you can go online, compare health plans.” ...