The largest health care strike in Oregon history began early Friday at Providence across the state, as roughly 5,000 frontline health professionals walked off the job. The strike — which includes mostly nurses and 150 doctors and advanced practitioners in addition to thousands of nurses — spans Providence’s eight hospitals in the state.

Close to 5,000 Providence nurses and about 150 doctors, midwives and advanced practice providers went on strike indefinitely starting Friday morning.

Oregon faces its largest healthcare worker strike, with 5,000 doctors and nurses from Providence Health on strike with no set end date.

Nearly 5,000 nurses, physicians and other caregivers from eight Providence hospitals and six Providence clinics began an open-ended strike at 6 a.m. Friday. “This is truly a historic event,” Oregon Nurses Association Executive Director Anne Tan Piazza said at a Thursday new conference.

With concern growing over hospital care as a Friday strike looms at Providence Hospitals, representatives from the Oregon Nurses Association will hold a press conference to update the public on their preparations.

Providence Health & Services in Oregon has asked federal mediators to revisit negotiations with doctors and other advanced clinical providers set to go on strike next week.

Nearly 5,000 doctors and nurses at several Providence hospitals and clinics hit the picket lines Friday in what could be the largest health care worker strike i