Old Saybrook Medical Center
- Yale New Haven Health System (YNHHS) is a nonprofit health system based in New Haven, CT, founded in 1996. It is Connecticut’s largest healthcare system, with endpoints across multiple hospitals and affiliated entities, including Yale New Haven Hospital, Smilow Cancer Hospital, Yale New Haven Children’s Hospital, and Northeast Medical Group, plus several facilities in Connecticut, New York, and Rhode Island. - Notable locations within the system include Bridgeport Hospital, Greenwich Hospital, Lawrence + Memorial Hospital, Westerly Hospital, and the Yale New Haven Psychiatric Hospital. The system operates 2,681 beds and employs thousands (approx. 3,336 listed), offering services across primary care, neurology, cardiology, cancer care, and more. - The headquarters are at 789 Howard Ave, New Haven, CT 06519. Main contact: patientinquiries@ynhh.org; phone: 203-688-4618. For an Old Saybrook-specific center, you may want to search directly for the Yale New Haven Health-affiliated sites in that town or contact the system’s patient inquiries for guidance.



