Long Island Addiction Treatment - Nassau County

Drug & Alcohol Rehab Centers on Long Island

A complete guide to addiction treatment facilities in Nassau and Suffolk counties. Compare hospital-based, residential, and outpatient programs to find the right level of care.

Medically Reviewed

Medically reviewed by Stuart Wasser, MD, Medical DirectorView Profile • Last reviewed: Editorial process

Understanding Levels of Care

Addiction treatment follows the ASAM (American Society of Addiction Medicine) framework. Each level addresses a different stage of recovery.

1
Medical DetoxASAM 3.7–4.03–7 days

24/7 medical supervision to safely manage withdrawal. Required for alcohol, benzodiazepines, and severe opioid dependence.

2
Inpatient RehabASAM 3.1–3.514–90 days

Live at the facility with round-the-clock care. Daily therapy, groups, and structured activities in a substance-free environment.

3
Intensive Outpatient (IOP)ASAM 2.16–12 weeks

Structured treatment 3–5 days per week while living at home. Ideal as primary treatment or step-down from residential care.

4
Standard OutpatientASAM 1.0Ongoing

Weekly individual or group therapy for maintenance and relapse prevention. Supports long-term recovery after higher levels of care.

Detox & Rehab Centers on Long Island

10 facilities in Nassau & Suffolk counties

Integrity Treatment Partners lobby

Integrity Treatment Partners

2250 Grand Avenue, Baldwin, NY 11510
5(82)
MedicaidMedicareCommercial

OASAS-licensed, Joint Commission-accredited IOP with day and evening tracks. MAT with Suboxone, Sublocade, and Vivitrol. Step-down partner for inpatient facilities.

OutpatientIOPAlcohol DetoxDrug DetoxDual Diagnosis
Integrity Sober Homes — men's sober living in Nassau County

Integrity Sober Homes (Men)

Freeport and Uniondale, Nassau County, NY
5(59)
Self-PayD.S.S.

12-step based sober living for men with locations in Freeport and Uniondale. Structured, supportive housing designed to help maintain long-term sobriety after treatment.

Sober LivingMen12-Step
NUMC (Nassau University Medical Center) logo

NUMC (Nassau University Medical Center)

2201 Hempstead Turnpike, East Meadow, NY 11554
3(954)
MedicareMedicaidCommercial

Nassau County’s public hospital with 24/7 addiction and mental health emergency care. Comprehensive behavioral health services including dual diagnosis treatment.

HospitalDetoxAlcohol DetoxDrug Detox
South Nassau Communities Hospital logo

South Nassau Communities Hospital

1 Healthy Way, Oceanside, NY 11572
3.2(874)
MedicareMedicaidCommercial

Community hospital with specialized addiction medicine and emergency services. Full continuum of behavioral health care.

HospitalDetoxAlcohol DetoxDrug Detox
Wellbridge Addiction Treatment Rehab logo

Wellbridge Addiction Treatment Rehab

525 Jan Way, Suite 100, Calverton, NY 11933
4.9(220)
CommercialSelf-Pay

Premier residential treatment center on a 96-acre campus with aftercare coordination. Evidence-based clinical programming.

RehabDetoxDrug Detox
South Oaks Hospital logo

South Oaks Hospital

400 Sunrise Highway, Amityville, NY 11701
3.6(184)
MedicareMedicaidCommercial

Psychiatric hospital offering the full continuum from detox through outpatient. Part of Northwell Health system.

HospitalDetoxRehabAlcohol DetoxDrug Detox
Long Island Center for Recovery (LICR) logo

Long Island Center for Recovery (LICR)

320 West Montauk Highway, Hampton Bays, NY 11946
4.3(113)
CommercialMedicaid

Established residential treatment center on the East End with a recovery-focused environment. Comprehensive addiction services.

RehabDetoxDrug DetoxAlcohol Detox
Seafield Center logo

Seafield Center

7 Seafield Lane, Westhampton Beach, NY 11978
4.1(100)
MedicaidCommercial

Treatment center providing addiction services from detox through extended outpatient care. Multiple levels of support.

RehabDetoxAlcohol DetoxDrug Detox
Transformation House men's sober living

Transformation House (Men)

Freeport, Valley Stream, and Copiague, Long Island, NY
4.9(37)
Self-PayD.S.S.

Structured, private men's recovery residence with built-in support system. High level of personal accountability in a drug and alcohol-free environment with weekly house meetings.

Sober LivingMen
Safe Haven Sober Living for women

Safe Haven Sober Living (Women)

Long Island, NY
4.6(29)
Self-PayD.S.S.

Sober living for women providing housing, food, and a healthy environment. Structured support through weekly meetings, chores, and accountability while allowing residents freedom to rebuild their lives.

Sober LivingWomen

Facility Comparison Table

Compare services and insurance acceptance across Long Island rehab facilities.

FacilityTypeDetoxResidentialIOPMedicaidMedicareCommercial
NUMCHospital
South OaksHospital
South NassauHospital
WellbridgeResidential
LICRResidential
SeafieldResidential
Integrity(Our Program)Outpatient

How to Choose the Right Rehab

Finding the right treatment center involves several factors. Here's what to consider.

Questions to Ask

  • Is the program OASAS-licensed and accredited?
  • What is the staff-to-patient ratio?
  • Do they offer Medication-Assisted Treatment (MAT)?
  • What does the aftercare/discharge plan include?
  • Can family members participate in treatment?

Insurance Considerations

  • Verify in-network status before admission
  • Ask about out-of-pocket costs and deductibles
  • Medicaid covers 100% at OASAS-certified programs
  • Medicare covers inpatient and outpatient services
  • Request pre-authorization from your insurer

Level of Care Needed

  • Medical detox for alcohol, benzos, or severe opioid dependence
  • Residential for unstable living situations or severe addiction
  • IOP for those with work/family responsibilities
  • Step-down care after completing residential
  • Dual diagnosis treatment for co-occurring mental health

Location & Accessibility

  • Consider proximity to family for visiting
  • Some benefit from distance from triggers
  • Look for programs accessible by public transit
  • Outpatient should be convenient for regular attendance
  • Ask about transportation assistance
Integrity Treatment Partners

Need Help Deciding? We Can Help.

We work with every facility on this list and can help coordinate your care. Call us to discuss your options and find the right level of care for your situation.