NEW YORK (AP) - ABC's "Private Practice" is shutting down.

ABC Entertainment spokeswoman Alison Rou said Monday that the "Grey's Anatomy" spinoff will be ending after 13 episodes this season, most likely in January. Series star Kate Walsh had previously announced she would be leaving after 13 episodes.

This is its sixth season on the air. After being paired on ABC's schedule with "Grey's Anatomy" on Thursday nights, "Private Practice" moved last spring to Tuesdays.

"Private Practice" had 6 million viewers last week, ranking it No. 51 in Nielsen's weekly listing of the most popular programs.

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