
Mather Hospital Northwell Health
Outpatient Partial Hospitalization Prg
Available 24/7 for immediate assistance
Full Address
100 Highlands Boulevard, Suite 201
Port Jefferson, New York 11777
Phone Numbers
Main: 631-473-3877
Hours
24/7 - Always Available
Mather Hospital Northwell Health
100 Highlands Boulevard, Suite 201, Port Jefferson, NY 11777
Mather Hospital Northwell Health in Port Jefferson, NY provides comprehensive substance use treatment with specialized care for co-occurring mental health conditions in both adults and adolescents. The facility offers flexible treatment settings from intensive outpatient to regular outpatient programs, including medication-assisted treatment with methadone, buprenorphine, and naltrexone. Accredited by The Joint Commission and state health agencies, Mather Hospital combines evidence-based therapies like cognitive behavioral therapy, motivational interviewing, and trauma-informed care to support lasting recovery.
Key Highlights
- Dual-diagnosis expertise treating substance use alongside serious mental illness or emotional disturbance
- Multiple treatment intensities and settings to match individual recovery needs and lifestyles
- Medication-assisted treatment options including methadone, buprenorphine, and naltrexone
- Telehealth therapy access for flexible, ongoing support and continuity of care
Who This Facility Serves
This facility best serves adults and adolescents struggling with substance use who also have co-occurring mental health conditions, as well as individuals seeking medication-assisted treatment options in a medically supervised outpatient environment.

This facility accepts various insurance plans. Contact them directly to verify coverage for your specific plan.
Mather Hospital Northwell Health
100 Highlands Boulevard, Suite 201, Port Jefferson, NY 11777
Available 24/7 for immediate assistance
| Type of Care | Substance use treatment, Treatment for co-occurring substance use plus either serious mental health illness in adults/serious emotional disturbance in children |
| Service Settings | Intensive outpatient treatment, Outpatient, Outpatient methadone/buprenorphine or naltrexone treatment, Regular outpatient treatment |
| Medications Offered | Buprenorphine used in Treatment, Naltrexone used in Treatment |
Accepted Payment Methods
Age Groups
Adults, Children/Adolescents
Gender
Female, Male
Based on available information, this facility accepts Federal military insurance (e.g., TRICARE), Medicaid, Medicare, Private health insurance, State-financed health insurance plan other than Medicaid. However, insurance coverage can vary by plan and individual circumstances. Please contact the facility directly to verify if your specific insurance plan is accepted and what services are covered.
Recovery Resources & Insights

Types of Rehabilitation Programs and How to Choose the Right One

Supporting a Loved One Through the Recovery Process: A Guide for Family and Friends


