CR 83 was assigned on December 13, 1949. Until the late 1950s, North Ocean Avenue followed a more westerly alignment between Austin Avenue, immediately south of the interchange with NY 27 in North Patchogue, to CR 99 (Woodside Avenue). Today, the old road is still intact for the most part as Old North Ocean Avenue. The expansion of the Sunrise Highway east of Oakdale cut off the southern terminus between Austin and Willmarth avenues in the 1950s, but a frontage road reconnected the old and new sections. When the interchange with NY 27 was reconstructed in the late 1980s, another frontage road connecting Old North Ocean Avenue replaced the one that was built in the 1950s. The intersection with Woodside Avenue was eliminated in the mid-1970s.