Doctor may get a series transplant

Having had little luck getting new drama series launched this season, ABC has decided a “Grey’s Anatomy” spinoff might be in order.

The new drama would star one of the doctors of Seattle Grace -- Kate Walsh’s character, neonatal surgeon Addison Montgomery. And Taye Diggs, who starred in ABC’s short-lived “Day Break,” also has been signed.

The pilot will take the form of a “Grey’s” episode -- in this case, a two-hour installment centered on Addison on the brink of leaving the hospital.

Expect to see it the first or second Thursday of the May ratings sweeps if ABC plans to wait to see how it flies with viewers before deciding whether to give it a series order and put it on the fall schedule.