The millionaire who left Wall Street to become a paramedic

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Jonathan Kleisner participates in a training simulation of a collapsed building at the department’s training academy in New York, Jan. 11, 2025. After making millions in a job he came to hate, Jonathan Kleisner joined the fire department as a rookie paramedic at the age of 41. Now he’s determined to be the best rescue medic anywhere. (Sean Jackson/The New York Times)

Mr Jonathan Kleisner participates in a training simulation of a collapsed building at the FDNY's academy in New York on Jan 11.

PHOTO: SEAN JACKSON/NYTIMES

Christopher Maag

The woman lay slumped in a subway stairwell, so Mr Jonathan Kleisner knelt to look her in the eye. “We’re here to help, OK?” he said. “Can you tell me what happened?”

The woman, who had collapsed in a fit of tremors minutes before, opened her eyes. She regarded the man before her – lean, all-business attitude, blue uniform exuding some kind of authority – and sprang awake. She placed both feet on the ground and rose with barely a wobble, muttering that she was okay. Then she turned and started up the stairs, unaware that she was walking away from one of the best-trained paramedics in the country.

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