Watch video content at TMZ.comA governing body for medical professionals is investigating Dr. Alex Khadavi, a celebrity dermatologist... after his homophobic rant.A spox for California's Medical Board tells TMZ that they are aware of Dr. Khadavi’s recent episode and are looking into it to determine if any disciplinary action should be taken.The board didn't say what punishment Khadavi could face, but said that there are many options. Although Khadavi's case didn't involve patient-care, it was alarming nonetheless.The Board also noted that Dr. Khadavi does not have any discipline records on his current license.We reported that Khadavi had a meltdown at his apartment complex's lobby. He made homophobic comments and even used the f-word. He seemed to be fuming about a few neighbors.We are waiting for your permission to load Instagram Media.A gay couple filed for a restraining or temporary order to stop Khadavi from threatening to kill them. They also claimed that Khadavi once showed a gun to the concierge to show that he was serious about business.