On May 2 at about 1:30 p.m., the 77-year-old victim was walking in front of 1299 Grand Concourse he and another man got into an argument that turned violent.
The NYPD said Edgar Wilson, 35, punched the older man in the face, knocking him to the ground.
Wilson then threw a cup with liquid on the victim's head before kicking him in the face, police said. He tried to rob the man but was unsuccessful, added police.
The victim was hospitalized in stable condition.
Authorities charged Wilson with attempted robbery and assault.
Anyone with information about the assault is encouraged to contact the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477). The public can also submit their tips by logging onto the Crime Stoppers website or on Twitter @NYPDTips.
Two days earlier, a man was beaten and robbed near Times Square. The victim got into an argument with three individuals in front of 700 8th Ave. at about 3:15 a.m. when they attacked him.
Another group ran over and
in his face and body.