Verified Treatment Center
Stony Brook Eastern Long Island Hospital
Greenport, NY · 11944
Key Takeaways for Stony Brook Eastern Long Island Hospital
- • Inpatient · MAT · Dual Dx offered
- • Accepts Medicaid, Medicare, Private insurance
- • Joint Commission accredited · SAMHSA-listed facility
- • Direct line available · Helpline free & confidential 24/7
About Stony Brook Eastern Long Island Hospital
The short picture on Stony Brook Eastern Long Island Hospital (Greenport, NY): The facility offers a continuum of care across multiple levels — Inpatient, MAT, Dual Dx — which means it can, in principle, hold a patient across the arc of a typical treatment episode. The longer picture — clinical framework, payer mix, outcomes — takes a few specific questions to surface.
Care levels at Stony Brook Eastern Long Island Hospital
The facility offers a continuum of care across multiple levels — Inpatient, MAT, Dual Dx — which means it can, in principle, hold a patient across the arc of a typical treatment episode. The practical question is whether it is genuinely strong at each level, or whether one level is the core business and the others are secondary. The level-of-care question is where a lot of misaligned placements happen — a patient who needs residential ends up in IOP, or vice versa. The protection is a clinical assessment outside the facility's admissions team.
Insurance and payment
Stony Brook Eastern Long Island Hospital accepts both Medicaid and commercial insurance, which is the broadest payer profile and typically correlates with programs that operate at scale across the economic spectrum. The uncomfortable truth about insurance at most treatment centers is that admissions staff and the utilization-review team sometimes have different understandings of what was promised. Written VOB forces those understandings into alignment.
Specialty programming
The facility's documented specialty programming includes: Clients with co-occurring mental and substance use disorders, Clients who have experienced trauma, Persons with post-traumatic stress disorder (PTSD). A facility's specialty designation is a starting filter, not an endorsement. The operational questions (who leads it, how many hours per week, what credentials) are where the actual answer lives.
Before you call
Questions that matter before admitting to Stony Brook Eastern Long Island Hospital: ASAM level of care (not the facility's category, the clinical level); written VOB; MAT policy. The facility's documented pharmacotherapy offerings suggest MAT is available — confirm the specific medications and prescriber access during the admissions conversation. The ones who answer those quickly are usually the ones worth considering. The ones who dodge are almost always worth skipping.
Listing sourced from the SAMHSA Behavioral Health Treatment Services Locator. Data last synced April 2026. Verify current programs directly with the facility.
Stony Brook Eastern Long Island Hospital at a Glance
Levels of care
Inpatient · MAT · Dual Dx
Service settings
Hospital inpatient/24-hour hospital inpatient
Therapy approaches
Activity therapy, Cognitive behavioral therapy, Group therapy, Integrated Mental and Substance Use Disorder treatment, Individual psychotherapy, Ketamine Infusion Therapy
Age groups
Young Adults, Seniors
Special populations
Clients with co-occurring mental and substance use disorders, Clients who have experienced trauma, Persons with post-traumatic stress disorder (PTSD)
Medications
Chlorpromazine, Fluphenazine, Haloperidol, Perphenazine, Prochlorperazine, Aripiprazole
Insurance & Payment Accepted
Confirm in-network status before admission — verification is free.
Medicaid
Coverage details →Medicare
Coverage details →Private insurance
Coverage details →TRICARE / VA
Contact & Location
Address
201 Manor Place, Greenport, NY 11944
Facility direct line
631-477-5710Website
elih.stonybrookmedicine.eduQuestions about this facility
Common questions about Stony Brook Eastern Long Island Hospital
Answered from public sources: SAMHSA listings, federal parity regulations, and our own admissions helpline intake notes.
Is Stony Brook Eastern Long Island Hospital listed in the SAMHSA Treatment Services Locator?
What insurance does Stony Brook Eastern Long Island Hospital accept?
How do I know if this level of care is right for me?
Is calling confidential? Will my employer find out?
What happens if I call the helpline instead of the facility?
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