The longtime head of Northwell Health is stepping aside after more than 20 years running New York’s largest health system.

UnitedHealth Group CEO Andrew Witty is stepping down as the chief executive and will be succeeded by Stephen J. Hemsley, who previously was CEO from 2006-17.

Former CEO and current chairman Stephen Hemsley is stepping back into the top job following the abrupt resignation of Andrew Witty, UnitedHealth said.

So I asked Ankit Jain, CEO of Infinitus—one such company that deploys AI agents to handle health care calls—to explain the difference.

Stephen Hemsley hasn’t been CEO at UnitedHealth Group in nearly a decade yet he’s never really left. Hemsley, 72, has remained chair and a major shareholder in the health care behemoth — and ...

UnitedHealth Group (UNH) stock gains marginally as the company names a new CEO for its health services division, Optum Health. Read more here.

UnitedHealth Group Chairman Stephen Hemsley was tapped to return to helm of the health care conglomerate as CEO Andrew Witty steps down for personal reasons.

Access Health: Sanford CEO on Rural Survival: "Virtual Care or No Care at All" Editor's note: This is a preview of Access Health, Newsweek's inside look at the business of health care.

Previous title: Chief executive officer, Optum Rx New title: CEO, Optum UnitedHealth has named Conway the new chief executive officer of Optum, the healthcare behemoth’s health services division.

UnitedHealth CEO Andrew Witty stepped down and the company suspended its 2025 outlook.

UnitedHealth CEO suddenly steps down for ‘personal reasons' Stephen J. Hemsley returned as CEO after Andrew Witty's surprising decision to leave the insurance giant.