A Hollywood writer and former co-producer of long-running sitcom Scrubs has been charged with sexually assaulting five women in six years, the Los Angeles County district attorney has revealed.

Eric Weinberg, 62, is charged with 18 counts, including sexual penetration by use of force and forcible rape, District Attorney George Gascón told reporters on Wednesday.

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“The defendant relied on his Hollywood credentials to lure young women for photo shoots where he allegedly sexually assaulted them,” Gascón said in a statement.

Weinberg, who worked on the sitcom which starred Zach Braff and ran from 2001-2010 - is free after having posted $US5 million bond, the district attorney’s office said.

Weinberg’s criminal defence attorney could not immediately be reached for comment. A spokesperson for Weinberg declined to comment.

Police initially arrested him in July in Los Angeles.

In some of the cases, Weinberg approached women in public places, told them he was a photographer and sexually assaulted them when they went to his home, prosecutors said.

Weinberg was a co-executive producer of Scrubs and Californication, and he worked on other shows.