The NYPD is searching for a man who escaped from police custody while at Bellevue Hospital early Saturday morning, authorities said.

Christopher Miller, 23, of Manhattan, was being treated at the hospital at about 3:50 a.m. when he dipped out of his room and fled out a side door near East 28th Street and FDR Drive, the NYPD said.

Miller stands about 5-foot, 6-inches tall, weighs about 160 pounds and has black hair, cops said.

He was wearing a gray sweatsuit and carrying a black cane when cops last saw him.

Police ask that anyone with information call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS (8477) or, for Spanish, 1-888-57-PISTA (74782).

The public can also submit tips by logging onto the Crime Stoppers website at https://crimestoppers.nypdonline.org/, or on Twitter, @NYPDTips.