Behavioral Health and Psychiatry Services

Stony Brook Eastern Long Island Hospital (SBELIH) is a premier provider of behavioral healthcare and substance use treatment for Eastern Long Island and Suffolk County. SBELIH is Suffolk County’s only facility offering integrated care encompassing detoxification, rehabilitation and psychiatric services, along with medical services. We also provide Outpatient Addiction Services.

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

Call For Appointments
Intake
Intake assessments are completed Monday to Friday,
8 am to 4 pm
 
Detoxification
Detoxification assessments are available 24 hours per day, 7 days per week through the Emergency Department
 
Rehabilitation
 
Inpatient Psychiatry
 
Quannacut Outpatient Services