I was called in for an in-person interview after a quick phone screener. The interview last approximately 30 minutes. I believe Labcorp does not do a lot of in house interviews for some of their positions so there is a chance that you will be interviewing with a staffing agency and LabCorp takes there word on whether you'd be a good fit. This is likely only for the non-technical positions also i know some people where direct hire already so experience may vary.