A travel nurse working at Emory University Hospital Midtown was arrested Monday and charged with two separate instances of sexually assaulting his patients, officials said.

Nikhil Narasappa, who was employed by Premier Healthcare Professionals, was booked into the Fulton County Jail on two counts of sexual battery and two counts of sexual assault by a person with supervisory authority, according to online jail records. He remains in jail without bond.

Narasappa’s position and involvement were confirmed by Emory Healthcare officials in an email to The Atlanta Journal-Constitution.

Narasappa was first investigated by Emory police for an incident that happened Oct. 13, but that probe was “inconclusive,” Emory spokeswoman Laura Diamond said. During that investigation, Narasappa was placed on leave.

After Narasappa returned to work, Emory police were called to investigate a second incident that took place Monday, Diamond said. That investigation led Emory officials to contact the Fulton County District Attorney’s Office, after which warrants were obtained on charges related to both incidents.

Narasappa was not an employee of Emory Healthcare, but was contracted to provide patient care through a third-party staffing company, Diamond said. His contract with Emory has been terminated.