In accordance with the New York State Department of Health, we are requiring all hospital visitors to follow specific visitation guidelines for the safety of our patients, visitors and team members. Please visit our website to learn more. Northern Westchester Hospital in Mt. Kisco, NY, offers state-of-the-art technology and award-winning patient care. Our specialties include weight loss surgery, cancer treatment, cardiovascular disease, gamma knife and robotic surgery, just to name a few. Our high standards of quality mean NWH ranks among the best hospitals in the country.