Police spokeswoman Rosario Herrera says Eroshevich turned herself in around 11 a.m. Monday at the Van Nuys station.
She didn't immediately post the $20,000 bail.
Eroshevich is charged with conspiring with another doctor and Smith's lawyer-turned-boyfriend Howard K. Stern.
Attorney General Jerry Brown alleges the doctors falsified prescriptions and prescribed unwarranted amounts of highly addictive medications to Smith. Eroshevich's attorney says she was only protecting Smith's privacy.
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