The man suffered the medical episode in Levittown at about 10:45 p.m. on Friday, Feb. 4, according to the Nassau County Police Department.
When officers arrived, a nurse was giving the man CPR, NCPD said.
Officers continued giving CPR, and the man regained and lost a pulse multiple times, police said.
Wantagh-Levittown Ambulance Corp. also responded and began giving medical aid, NCPD said.
The man was taken to an area hospital and was listed in stable condition, police said.
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