Robert Angrisani had visited his son and daughter-in-law in Patchogue on the morning of Oct. 3 before driving to Brookhaven Memorial Hospital Medical Center in nearby East Patchogue, where his wife, Carmel, was recently admitted for a fractured arm bone.
His family has not heard from him since he left the hospital at 3:15 p.m. Wednesday, said daughter-in-law Debbie Angrisani. Suffolk police issued a Silver Alert -- its program highlighting missing county residents with special needs -- on Thursday evening.
"This is not like him at all," Debbie Angrisani said Sunday.
Robert Angrisani drives a 2003 black Chevrolet Impala with New York license plates DAX7609. The car has a yellow and red U.S. Marines sticker on the rear window and an Our Lady of the Island sticker on the rear bumper.
Angrisani, who is 6 feet tall, weighs 215 pounds, and has brown eyes and gray, balding hair, was last seen wearing a red-and-white baseball cap and blue-gray Velcro sneakers, police said.
Family members said the retired scaffolding builder, who answers to "Bob" or "Bobby," does not carry a cellphone or credit card, and does not like to drive at night. Angrisani suffers from early stage Alzheimer's, but knows basic information such as his name and his children's names, family said.
Anyone with information on his whereabouts is asked to call Suffolk police Missing Persons Section at 631-852-6040.