Grey's Anatomy's Justin Chambers Treated at Psych Ward
01/31/2008 AT 06:00 PM EST
He "was exhausted and suffers from a sleeping disorder," his rep tells TMZ.com. "He went in voluntarily to get some help."
Chambers plays Dr. Alex Karev on the ABC drama.
The UCLA Medical Center is the same facility where Britney Spears is currently under a 72-hour psychiatric hold.