Substance Use Treatment in Port Jefferson, NY

Mather Hospital at Northwell

What Does Mather Hospital at Northwell Offer?

Mather Hospital at Northwell is a substance use treatment facility at 100 Highlands Boulevard, Suite 101, Port Jefferson, New York, offering intensive outpatient and outpatient treatment. It accepts Medicaid, Medicare, private insurance, TRICARE, state-financed insurance and self-pay and offers a sliding fee scale and payment assistance. Medication treatment: buprenorphine and naltrexone.

Reviewed by Michael Rupe ·October 2, 2026

100 Highlands Boulevard, Suite 101
Port Jefferson, NY 11777

Listed in SAMHSA's FindTreatment.gov, checked October 2026. A listing is not an endorsement. Call to confirm services, openings and costs before you go.

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Types of Care at Mather Hospital at Northwell

Outpatient
Intensive outpatient treatment
Outpatient methadone/buprenorphine or naltrexone treatment
Regular outpatient treatment

Payment, Insurance and Help Paying

Medicare
Medicaid
Federal military insurance (e.g., TRICARE)
Private health insurance
Cash or self-payment
State-financed health insurance plan other than Medicaid
Payment assistance (check with facility for details)
Sliding fee scale (fee is based on income and other factors)

Medication Treatment

Buprenorphine maintenance
Prescribes buprenorphine
Prescribes naltrexone
Relapse prevention with naltrexone
Accepts clients using MAT but prescribed elsewhere
Lofexidine or Clonidine detoxification
Acamprosate (Campral®)
Disulfiram
Buprenorphine with naloxone
Buprenorphine without naloxone
Buprenorphine (extended-release, injectable)
Naltrexone (oral)
Naltrexone (extended-release, injectable)
Clonidine

Who the Program Serves

Adolescents
Adult women
Adult men
Seniors or older adults
Clients with co-occurring mental and substance use disorders
Ages: Children/Adolescents
Ages: Young Adults
Ages: Adults
Ages: Seniors
Accepts: Female
Accepts: Male
Specially designed program for DUI/DWI clients

Language Services

Sign language services for the deaf and hard of hearing

Licensing and Accreditation

State substance use treatment agency
State department of health
The Joint Commission

Treatment Approaches

Anger management
Brief intervention
Cognitive behavioral therapy
Contingency management/motivational incentives
Motivational interviewing
Relapse prevention
Substance use disorder counseling
Trauma-related counseling
Telemedicine/telehealth therapy
12-step facilitation

Assessment, Recovery Support and Other Services

Comprehensive mental health assessment
Comprehensive substance use assessment
Interim services for clients
Outreach to persons in the community
Screening for tobacco use
Screening for substance use
Screening for mental disorders
Aftercare/continuing care
Discharge Planning
Naloxone and overdose education
Outcome follow-up after discharge
Self-help groups
Housing services
Assistance with obtaining social services
Recovery coach
Mentoring/peer support
Mental health services
Transportation assistance
Suicide prevention services
Breathalyzer or blood alcohol testing
Drug and alcohol oral fluid testing
Drug or alcohol urine screening
Treatment for gambling disorder
Treatment for other addiction disorder

Before you commit, confirm openings, costs and the program's state license. How to choose a rehab you can trust lists the questions to ask when you call, and addiction treatment in New York lists the state's treatment agency.