A doctor from Manhasset was killed following a road rage incident near his Brooklyn hospital earlier this month, police say.

They say 56-year-old Dr. Jamie Yun got into an argument with another driver, Dexter Alexander, on June 8.

Detectives say Alexander subsequently punched Yun in the face, causing him to fall to the ground. The doctor was taken to a hospital in stable condition with a head injury.

Yun's condition worsened and he died from a traumatic brain injury on June 16.

The medical examiner deemed the doctor's manner of death to be a homicide.

Alexander was arrested and charged with assault on Monday.

A private ceremony is being held for Yun on Saturday at Flushing Cemetery.