100 Highlands Boulevard Suite 101, Port Jefferson, NY 11777
Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic is a nonprofit substance use treatment provider in Port Jefferson, New York, located at 100 Highlands Boulevard Suite 101. The Outpatient Chemical Dependency Clinic program is operated by Mather Hospital at Northwell.
Levels of care offered here include intensive outpatient (IOP), standard outpatient counseling, medication-assisted treatment (MAT), co-occurring (dual diagnosis) mental health treatment, and telehealth therapy. Clinicians use approaches such as anger management, brief intervention, cognitive behavioral therapy, contingency management/motivational incentives, and motivational interviewing. For opioid use disorder, the program uses buprenorphine and naltrexone. It also prescribes medication for alcohol use disorder.
For payment, the facility accepts Medicare, Medicaid, military insurance (TRICARE), private health insurance, cash or self-payment, and state-financed health insurance plan other than Medicaid. A sliding fee scale based on income is available. Coverage depends on your specific plan, so verify benefits before admission.
The program accepts children/adolescents, young adults, adults, and seniors. It offers specialized groups for adolescents, seniors or older adults, and clients with co-occurring mental and substance use disorders. Sign language services are available for deaf and hard-of-hearing clients.
Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic is accredited by The Joint Commission and licensed or certified by the state substance use treatment agency and state department of health.
Support services include aftercare/continuing care, discharge planning, naloxone and overdose education, and outcome follow-up after discharge.
Payment assistance (check with facility for details) · Sliding fee scale (fee is based on income and other factors)
| Licensing & accreditation | State substance use treatment agency, State department of health, The Joint Commission |
|---|---|
| Ages accepted | Children/Adolescents, Young Adults, Adults, Seniors |
| Language services | Sign language services for the deaf and hard of hearing |
| Operated by | Private non-profit organization |
| Exclusive services | Specially designed program for DUI/DWI clients |
100 Highlands Boulevard Suite 101
Port Jefferson, NY 11777
Facility's own contact631-331-8200 · matherhospital.org
Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic lists the following levels of care: intensive outpatient (IOP), outpatient, medication-assisted treatment (MAT), dual diagnosis, and telehealth. Services can change, so confirm current programs before admission.
According to SAMHSA data, Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic accepts medicare, medicaid, military insurance (tricare), private health insurance, cash or self-payment, and state-financed health insurance plan other than medicaid. Your exact coverage depends on your plan and network status. You can check your benefits with your insurer, or call (877) 847-2855 for a free benefits check.
Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic does not list detox services. If you need medically supervised withdrawal first, see detox programs or call (877) 847-2855 for help finding one.
Yes. Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic reports accreditation from The Joint Commission. Accreditation means the facility meets independent quality and safety standards.
Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic accepts children/adolescents, young adults, adults, and seniors. Specialized groups include adolescents, adult women, adult men, seniors or older adults, and clients with co-occurring mental and substance use disorders.
Admission usually starts with a phone screening and insurance check, followed by an assessment. You can contact Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic directly at 631-331-8200. To compare Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic with other options and verify your insurance, call our admissions helpline at (877) 847-2855. Our helpline is not affiliated with Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic.
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Port Jefferson, NY 11777
Joint Commission accredited
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Holtsville, NY 11742
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Medford, NY 11763
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Farmingville, NY 11738
Joint Commission accredited
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“Get help” calls our free helpline, not this facility.
Smithtown, NY 11787
Joint Commission accredited
Levels of care
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“Get help” calls our free helpline, not this facility.
Smithtown, NY 11787
Levels of care
Payment accepted
Medicaid · Medicare · Private insurance +2 more
“Get help” calls our free helpline, not this facility.
Source: SAMHSA FindTreatment.gov, data updated October 2026. Facilities report this information to SAMHSA, and it can change, so confirm details before admission. A listing is not an endorsement. StartDrugRehab is not affiliated with Mather Hospital at Northwell – Outpatient Chemical Dependency Clinic.
