Best Behavioral Health clinics in Hempstead, NY.

Mount Sinai South Nassau (formerly South Nassau Communities Hospital) is a nonprofit, acute-care teaching hospital in Oceanside, NY, with 455 beds and a large physician and staff network. It provides comprehensive services including emergency care, cardiology, oncology, orthopedics, bariatrics, pain management, and mental health, plus advanced radiosurgery (Novalis Tx and Gamma Knife Perfexion). The hospital operates several outpatient centers and is designated a Stroke Center by the NYS Department of Health and a Comprehensive Community Cancer Center by the ACS. It is part of Mount Sinai Health System and serves the Long Island region, with a primary campus in Oceanside and additional locations nearby (e.g., Long Beach). For Hempstead-specific primary care, contact Mount Sinai South Nassau’s patient access or visit their site to find affiliated primary care physicians. Contact: info@southnassau.org; 877-768-8462 / 516-632-3000.

Mental Health Association of Nassau County (MHANC) is a nonprofit, not-for-profit membership organization focused on improving community mental health in Long Island. Founded in 1953 and headquartered in Hempstead, NY, MHANC advances advocacy, education, program development, and direct services. Contact: info@mhanc.org or mhanc@mhanc.org; phone (516) 489-2322. Addresses: 16 Main Street, Hempstead, NY 11550 (HQ) and additional Hempstead offices. Website: mhanc.org.