"It shows that there is support for the Healthy Pennsylvania program to the federal government," Branstetter said. "This is a crucial step."
At least three insurers want to offer coverage in each of nine regions of the state, and Branstetter said that meets the administration's benchmark to ensure enrollees will have a choice.
The insurers include Aetna, Capital Blue Cross, Independence Blue Cross, Gateway Health, Geisinger, Highmark, United Healthcare, UPMC and Health Partners Plans, which is owned by Temple University Hospital and five other not-for-profit Philadelphia hospitals. An Independence Blue Cross plan, called Vista, would be offered statewide.
A key test will be whether Pennsylvania can persuade the U.S. Centers for Medicare and Medicaid Services that its private Medicaid alternative will not cost more than traditional Medicaid coverage would. The Corbett plan would cover the same population as the Medicaid expansion: working adults who make 133 percent of the federal poverty level, or about $15,500.
Asked for a response Friday, a CMS spokesman would only say that the agency remains in close contact with state officials "and continues to provide technical assistance before making a decision."
The agency has consistently declined to publicly discuss the details of Corbett's plan. The 124-page plan was formally submitted in February and closed-door negotiations began in April after a public comment period.
Branstetter said she is optimistic that Corbett's entire plan will be approved soon by the federal government, albeit with some modifications. She would not elaborate and said that she is keeping the content of negotiations private.
If some or all of his proposed changes are rejected, Corbett will face a decision on whether to take the federal government's offer in an election year when labor unions, hospital groups, the AARP, medical professionals and advocates for the poor want the Medicaid money to come to Pennsylvania. Some of the changes he is seeking have never been approved in any state.
Corbett, a conservative and staunch critic of Medicaid and the federal health care law, has formulated his plan to be distinct from the Medicaid expansion that conservatives dislike, while still taking the money that would have paid for it.
States were able to expand Medicaid beginning last Jan. 1. Twenty-six states did, including every neighbor of Pennsylvania and six — Arizona, Nevada, New Jersey, New Mexico, Iowa and Ohio — that have Republican governors. Two states, Arizona and Iowa, are using private insurance companies to offer coverage, and Pennsylvania's plan is modeled on theirs.