Quannacut Inpatient Services

Stony Brook Eastern Long Island Hospital is a premier provider of behavioral healthcare for Eastern Long Island and Suffolk County. Stony Brook Eastern Long Island Hospital is Suffolk County’s only facility that offers integrated care that encompasses Detoxification, Rehabilitation, and Psychiatric Services along with medical care with a track record of proven success on throughout Suffolk County. Serving adults 18 and over, SBELIH Inpatient Behavioral Health Services provides treatment for mental health and substance use disorders from a medical and psycho-therapeutic approach. Treatment is provided by an interdisciplinary team of physicians, nurses, social workers, recreation therapists, and credentialed alcohol and substance abuse counselors. Through individual and group therapy, education, medication management, and comprehensive discharge planning, SBELIH provides a nurturing environment assisting each patient to progress and heal within their own recovery process. 

Inpatient Psychiatry

Greenport: 631-477-5265/631-477-5268

Inpatient Addiction Services, Greenport

Intake: 631-477-8877
Intake assessments completed Monday-Friday, 7am-7pm

Detoxification: 631-477-5234
Detoxification assessments available 24 hours per day, 7 days per week through the Emergency Department

Rehabilitation: 631-477-5325

Lloyd Simon, MD
Medical Director & Director, Addiction Services, SBELIH
Diplomate, American Board of Internal Medicine
Diplomate, American Society of Addiction Medicine

Southold: 631-765-4150

Douglas K. Hoverkamp, MD
Director, Department of Psychiatry, SBELIH
Psychatric Director, Quannacut Outpatient Services
Diplomate, American Board of Psychiatry

Greenport: 631-477-6890

Daniel Klages, MD
Diplomate, American Board of Psychiatry
Greenport: 631-477-1000