A Bethpage teenager has been reported missing, MTA authorities said Thursday.

Danielle Fiorello, 16, of Bethpage, was last seen April 9 with a black backpack at the Graham School in Hastings-on-Hudson — a residence school that she attended — according to her mother, Linda Fiorello.

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She was recently discharged from the Sagamore Children’s Psychiatric Hospital on April 4, Fiorello’s mother said, and may be on medication.

Fiorello is 5 feet, 7 inches tall, and about 170 pounds, with strawberry blonde hair and blue eyes.

Anyone with information is urged to call Crime Stoppers at 800-577-8477.