TMZ has learned ... Lindsay Lohan is undergoing treatment at the famous Betty Ford Center, a legendary and respected alcohol and drug rehabilitation clinic in Rancho Mirage, California.
Lindsay checked in Monday -- and as we previously reported, the plan is for her to stay put in rehab at least until her probation violation hearing on October 22.
It's gonna run Lindsay a pretty penny too -- according to their website, 30 days of inpatient care at BF runs $26,000.
Betty Ford has treated scores of celebs -- a short list of former patients includes, Keith Urban, Chevy Chase, Elizabeth Taylor, Gary Busey, Johnny Cash, Kelsey Grammer, David Hasselhoff, Mickey Mantle, Liza Minnelli, Ozzy Osbourne, and Anna Nicole Smith.
Rehabbin' at Betty Ford
9/30/2010 11:00 AM PDT BY TMZ STAFF
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