PALO ALTO (KRON) — Palo Alto police are asking for help finding an elderly man who went missing from the Stanford Hospital Monday afternoon.

84-year-old Martin Tannian was last seen around 1:37 p.m. Monday at the hospital in the 300 block of Pasteur Drive.

Tannian left the hospital after being discharged, but did not get picked up for his ride home to Sunnyvale.

The above surveillance picture shows Tannian as he was leaving the hospital. He was last seen wearing a neon green t-shirt with an open khaki sweater, and dark pants. He is a white male, about 6 feet tall and 210 pounds.

Tannian uses a walker.

He has no phone with him and no money.

Anybody with information on Tannian’s location is asked to call 9-1-1- and keep him under observation until officers arrive to help him.