Gastroenterologist Woodbury, NJ - Gastrointestinal Associates DiMarino-Kroop-Prieto. The mission of DiMarino, Kroop, Prieto Gastrointestinal Associates, is to be the premiere gastroenterology Consulting group in the Delaware Valley, provide the highest quality of care to all patients, maintain a close working relationship with referring physicians and employees, and to respect the rights and ....