The chief information officer at the Centers for Medicare and Medicaid Services, whose office supervised creation of the troubled federal website for health insurance, is retiring, the Obama administration said Wednesday.

The official, Tony Trenkle, will step down on Nov. 15 “to take a position in the private sector,” an e-mail message said. Trenkle supervised the spending of $2 billion a year on information technology products and services, including development of

Trenkle’s retirement is part of a management shake-up announced by Michelle Snyder, the chief operating officer of the Medicare agency. Snyder said Tim Love, a career civil servant, would become her deputy. Love has been working on Medicare policy and operations, as the No. 2 official at the Center for Medicare.

For seven months in 2010, he was a senior policy director in the White House Office of Health Reform, where he led efforts to carry out many provisions of the Affordable Care Act.