Hoboken Police Detective Mark Competello says Lange's mother found him on the floor of his waterfront home on Saturday.
Competello says the 42-year-old comedian was unconscious but breathing after stabbing himself with a 13-inch Wolfgang Puck kitchen knife.
Lange was taken to Jersey City Medical Center. Competello says doctors cleaned nine abdominal knife wounds and operated. He says Lange has been released.
A message was left for Lange's publicist. Stern has spoken of the suicide attempt and said his thoughts are with Lange's mother and sister.
Lange's lost driving privileges after admitting he was under the influence of sleeping pills in a minor traffic accident.
