Neiers' attorney said she has a debilitating heroin addiction.
The aspiring model and star of the E! Entertainment Television show "Pretty Wild" spent 30 days of a six-month sentence in jail this year after pleading no contest to burglarizing Bloom's house.
She was part of the so-called "Bling-Ring" group accused of breaking into several celebrities' homes
Prosecutors had been asking that Neiers be sent to prison for two years, but the judge cited her age, limited criminal record and addiction as reasons why he chose rehab instead of prison.
The Associated Press contributed to this report.