Northwell at South Oaks Hospital DBA South Oaks Hosp Detox

South Oaks Hospital — formally operating as Northwell at South Oaks Hospital DBA South Oaks Hosp Detox — is a hospital-based addiction treatment facility located at 400 Sunrise Hwy in Amityville, New York, within Suffolk County on Long Island. As part of the Northwell Health network, it brings institutional medical infrastructure to withdrawal management and substance use treatment, distinguishing it from freestanding residential programs or stand-alone outpatient clinics.

The facility offers a full continuum of care anchored by medical detox and inpatient treatment. For those who require close clinical oversight during withdrawal, the medical detox program provides structured, physician-supported care within a hospital environment. Patients who have stabilized medically or who need step-down support can transition into partial hospitalization, intensive outpatient, or standard outpatient programming — all available at the same organization.

South Oaks Hospital treats substance use disorder and opioid use disorder, as well as co-occurring mental health disorders. Psychiatric oversight is provided under the direction of Youssef Khalil Hassoun, MD, who serves as Psychiatry Medical Director. The hospital setting allows for integrated management of both addiction and mental health conditions, which is particularly relevant for patients presenting with dual diagnoses.

The facility serves a notably broad range of populations, including children, adolescents, adults, senior adults, college students, healthcare professionals, and LGBTQIA+ individuals. This breadth, combined with hospital-level medical detox and an in-house psychiatric director, makes South Oaks a clinically robust option for individuals and families in Suffolk County seeking medically supervised detox or a full inpatient treatment program.

South Oaks Hospital provides medical detox within a full hospital infrastructure — a meaningful distinction for individuals whose withdrawal needs require close clinical monitoring. Located on Sunrise Highway in Amityville, the facility operates as part of the Northwell Health network, giving the detox program access to institutional medical resources that many standalone detox centers cannot match.

The inpatient detox program is designed for patients who need physician-supervised withdrawal management before stepping into lower levels of care. For families in Suffolk County researching safe withdrawal options for opioid use disorder or substance use disorder, the hospital setting offers a level of medical oversight that differs substantially from community-based residential or outpatient-only programs.

South Oaks Hospital offers one of the more complete treatment continuums available in the region. Medical detox and inpatient treatment form the acute end of the spectrum, while partial hospitalization provides a structured step-down option for patients transitioning out of 24-hour care. Intensive outpatient and standard outpatient programs are also available, allowing patients to continue treatment while resuming daily responsibilities.

This range of levels of care within a single organization makes it possible for patients to move through treatment stages without changing providers — an advantage for those managing opioid use disorder or co-occurring mental health conditions that require ongoing clinical coordination.

South Oaks Hospital addresses mental health disorders alongside substance use and opioid use disorder, reflecting the clinical reality that many patients present with both. Psychiatric care is overseen by Youssef Khalil Hassoun, MD, who serves as Psychiatry Medical Director — a named, credentialed physician providing direct medical leadership to the program.

For patients whose addiction is complicated by depression, anxiety, or other psychiatric conditions, the availability of in-house psychiatric direction within a hospital-based detox and inpatient setting is a concrete clinical advantage over programs that address only substance use.

The facility serves a wide cross-section of patients: children, adolescents, adults, senior adults, college students, healthcare professionals, and LGBTQIA+ individuals. This range is broader than many detox programs in the region, which tend to focus on a single adult population.

For families researching detox options on Long Island, this breadth means South Oaks can evaluate and treat patients across different life stages and backgrounds — from a college student managing opioid use disorder to a senior adult requiring medically supervised detox or a healthcare professional seeking inpatient treatment in a clinical hospital environment.