Stony Brook Medicine is the premier provider of behavioral healthcare and substance use treatment for Eastern Long Island and Suffolk County. Stony Brook Eastern Long Island Hospital (SBELIH) is Suffolk County’s only facility offering integrated care encompassing detox, rehabilitation and psychiatry, along with medical services.

SBELIH’s behavioral health services take a holistic approach to providing the highest caliber medicine, psychiatry and substance use treatment under one roof for an individualized inpatient and outpatient treatment experience for substance use and psychiatric conditions in Suffolk County. We don’t define our patients by their addiction or psychiatric diagnosis, as they are not the equivalent of it.

Services include inpatient and outpatient Addiction Services under the Quannacut program and inpatient Psychiatry for Adults 18+. The philosophy of SBELIH's Behavioral Health Services addresses addiction and mental health as a treatable disease. SBELIH’s Behavioral Health Center is a place where our compassionate professionals work to maintain a nurturing environment that enables patients to stabilize, recover, and transition back into the community.

Inpatient Behavioral Health Services
201 Manor Place
Greenport, NY 11944
(631) 477-8877
 
Quannacut Outpatient Services
905 East Main Street
Riverhead, NY 11901
(631) 369-8966