The doctor is in -- but not for long, it seems. reports that Robert Lucas, featured on CBS hit 'The Doctors,' is being investigated by the California Physician Assistant Committee in an attempt to determine whether or not Lucas is fit to practice medicine.

Lucas, a physician's assistant to plastic surgeon Dr. Drew Ordon, was arrested twice for DUI in 2008 and pleaded guilty each time.

Lucas paid a hefty fine, spent three weeks behind bars and was ordered to serve five years probation.