The Senate Health, Education, Labor and Pensions Committee, citing de la Torre's repeated refusals to come before the committee voluntarily, voted 20-1 to subpoena the executive and 16-4 to launch a formal investigation of Steward that could include sworn testimony and future subpoenas for others in the Steward chain of command. (McAuliff, 7/25) In other health industry developments — Modern Healthcare: Optum Layoffs Hit 524 Workers, Including Some Clinicians, Nurses UnitedHealth Group's Optum Health division will lay off 524 employees in California and remote locations, according to a report by the state's Employee Development Department. The affected employees include physicians, physician assistants, registered nurses, licensed practical nurses, patient care coordinators, nurse practitioners and social workers, according to the company's Worker Adjustment and Retraining Notification Act notice obtained by Modern Healthcare.