In the summer of 2002, Cohen moved to the East Coast to train with Tatiana Tarasova at the International Skating Center of Connecticut in Simsbury, Connecticut. She won her first ISU Grand Prix event at the 2002 Skate Canada and then won the 2002 Trophée Lalique. She won the silver medal at the 2002 Cup of Russia. These three placements earned her a spot to the 2002–03 Grand Prix Final, where she became the champion. At the 2003 U.S. championships she won the bronze medal, and at the 2003 World Championships, held in Washington, D.C., Cohen placed 4th, repeating her placement in the previous season.