A Silver Alert has been issued for Larry Greene, 69, according to the Kansas City, Kansas, Police Department.
Greene was last seen about 6 p.m. Thursday, Aug. 18, near the University of Kansas Medical Center.
Greene is 5-8, 150 pounds, with brown eyes and gray hair. He wears glasses. He has dementia, according to police.
Anyone who has information about his whereabouts should call 911, according to police.