A Venezuelan veterinarian ​– busted overseas for allegedly trafficking heroin inside of puppies ​– has been extradited to New York, according to ​law enforcement sources.

Accused drug runner Andres Lopez Elorza, 33, arrived at JFK on Monday afternoon and is expected to appear in Brooklyn federal court on Tuesday, ​the sources said.

He donned a green jacket and put his hands inside his blue sweater to conceal handcuffs as he was taken by US Marshals at the airport, NBC ​reported.

Lopez Elorza was arrested in Spain back in 2015 in connection to a raid at a vet clinic he ran in Colombia where authorities found 6.6 pounds of heroin implanted inside three puppies.

This bust targeted a drug-trafficking gang that used dogs to send liquid heroin from Colombia to the United States, authorities said.