By TMZ Staff

Howard K. Stern is turning himself in tonight -- he's being arrested and charged, along with two other doctors, for allegedly conspiring to fuel an an addict with prescription drugs -- and the addict was Anna Nicole Smith

Stern and Dr. Sandeep Kapoor (above right) and Khristine Eroshevich are being charged with a total of eight felonies.

According to the L.A. County D.A., the conspiracy counts allege the three defendants conspired to furnish controlled substances to Smith from between July 2004 and January 2007.

Stern and Kapoor were charged with one count of unlawfully prescribing a controlled substance. Eroshevich and Stern were charged with unlawfully prescribing a controlled substance between June 2004 and January 2007.

Kapoor and Eroshevich were each charged with obtaining a prescription for opiates by "fraud, deceit or misrepresentation." They were both also charged with one count of obtaining a prescription for opiates by giving a false name or address.

Kapoor and Stern were also charged with one count of "prescribing, administering or dispensing a controlled substance to an addict." Eroshevich was charged with the same crime for separate prescriptions.

Bail is recommended at $20,000 for each defendant. We know both Stern and Kapoor bailed out Thursday night.

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photo: Booking photos/