Harlem Hospital's NICU can provide support with bubble CPAP, conventional ventilator and high frequency oscillator, and has availability of multiple pediatric subspecialties including cardiology, surgery, infectious disease, ophthalmology, neurology, gastroenterology, orthopedics, genetics, hematology and endocrinology. PAGNY is one of the largest physician groups in the country and directly employs nearly 4,000 physicians and allied health professionals who provide services to NYC Health + Hospitals , the largest municipal health care system in the nation serving more than a million New Yorkers annually.