The man, whose name has not been released, was last seen at the Wegmans supermarket in West Windsor on Monday morning.
The man was driving a 1999 silver Acura sedan with New Jersey license plate 515-SDW.
The man was wearing a light-blue shirt, beige pants and brown shoes.
Anyone with information should call 911.
A silver alert is issued for missing senior citizens with Alzheimer's Disease, dementia or other mental disabilities.