TMZ reports that Million Dollar Listing star and beloved wowlebrity Matt Altman recently requested and got a restraining order against Alex Khadavi, a famous Encino dermatologist, who Matt says has been threatening him by phone and in person FOR YEARS.

In the docs Matt says Khadavi walked up to him at a real estate event, and when Matt asked him to leave the private event … Khadavi blurted out he “hated all Jews” … and said he was going to kill Matt.

Matt says Khadavi’s been making racist and homophobic comments by phone for years, but now that the guy’s doing it face-to-face … he needs protection.

The court order says Khadavi must stay 100 yards away from Matt and his girlfriend, Johanna … plus Josh Altman and his wife, Heather.

Well, THAT’S disturbing!

Below, in the 2011 season premiere of sTorybook Weddings, “Tori Spelling turns to Dr. Khadavi to transform her friend’s problematic skin into acne free, smooth and radiant skin!”