A deranged man who pushed a woman down a hill as she walked along the Central Park reservoir and then repeatedly slammed her head against a tree has been arrested, officials said Saturday.

Juan Garcia, 24, was busted Friday and charged with assault for the April 6 attack. 

The woman, 55, was walking along the Jacqueline Kennedy Onassis Reservoir just before 6 a.m. when Garcia allegedly tried to talk to her and then assaulted her, “banging her head against a tree multiple times,” police said.

He then “struck her head against a tree four times,” prosecutors alleged in the document. The victim, whose identity wasn’t released, was left with visible scrapes and bruises on her face and pain to her head, chin, knees and back.

The attacker was last seen fleeing east on the 86 Street Transverse on a blue Citi Bike. An ambulance took the victim to a local hospital in stable condition.

Detectives who were investigating the attack found surveillance video of Garcia going into the southbound No. 4/5/6 subway station at East 86th Street and Lexington Avenue and put out a wanted poster. 

A police officer from Brooklyn’s 75th Precinct who saw the poster recognized Garcia.

The same officer had arrested him on March 25 for snatching a bottle of Hennessy out of a woman’s hand in East New York, Brooklyn, police said.

Garcia was held on $100,000 cash bail or $50,000 bond.

Additional reporting by Georgia Worrell