It happened around 10:05 a.m. Saturday, July 2 in Huntington.
The man was driving a 1996 Dodge pickup truck northbound on Park Avenue when his vehicle crossed over the southbound lane, left the roadway and struck a tree, Suffolk County Police said.
Constantine Nektaredes, age 67, of East Northport, was airlifted via Suffolk County Police helicopter to Stony Brook University Hospital for treatment of serious injuries.
The pickup truck was impounded for a safety check.
Detectives are asking anyone with information to call the SCPD Second Squad at 631-854-8252.
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