OYSTER BAY - Mark Feuerstein is back on Long Island as Dr. Hank Lawson for a new season of "Royal Pains." 

The Hamptons-set series has been running for six years, but it's filmed all over Long Island. 

Long Islanders will recognize that Oyster Bay stands in for Southampton, and Huntington's Oheka Castle acts as a Hamptons estate.
"We go as far as exit 40, exit 50 on the LIE and we say alright everybody this is the Hamptons today," says Feuerstein. 

Season six of "Royal Pains" premieres Tuesday, June 10.