Company Overview Greater New York Hospital Association (GNYHA) is a trade association located in New York City representing more than 200 hospitals, health systems, and continuing care facilities in New York State, New Jersey, Connecticut, and Rhode Island. GNYHA is a dynamic, constantly evolving center for health care advocacy and expertise, but our core mission—helping hospitals deliver the finest patient care in the most cost-effective way—never changes. GNYHA’s advocacy takes many forms, from representing our members’ interest at the Federal and State governments to working alongside them to improve quality and patient safety.