Michael Jackson's Doctor Files For Bankruptcy

1/25/2011 11:48 AM PST

Dr. Arnie Klein -- Michael Jackson's Doctor Files For Bankruptcy

Michael Jackson's doctor and longtime confidante,  Dr. Arnie Klein -- one of the most successful docs in Bev Hills -- has filed for bankruptcy ... TMZ has learned.

Klein -- who filed his petition in U.S. Bankruptcy Court in L.A. -- claims debts between $1 and $10 million.

Klein -- a dermatologist with an enormous celebrity clientele including Cher, Elizabeth Taylor and Dolly Parton  -- owes $80,000 to American Express, $127,000 to the IRS, nearly $2.6 million to City National Bank for a mortgage, $50,000 to one of his lawyers, $20,000 to the landlord of his office building, and $115,000 to Dr. David Rish, the doc who shares office space with Klein.

Klein, who also owes nearly a quarter of a million bucks to medical suppliers, filed for Chapter 11 last Thursday.