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Verified Treatment Center

Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit

Amityville, NY · 11701

SAMHSA Verified Detox IOP MAT
Specializes in Adolescent

Key Takeaways for Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit

  • Detox · IOP · MAT offered
  • Accepts Medicaid, Medicare, Private insurance, TRICARE/VA
  • SAMHSA-listed facility
  • Direct line available · Helpline free & confidential 24/7

About Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit

Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit sits in Amityville, NY, one of the many SAMHSA-registered addiction-treatment facilities across NY. The facility offers a continuum of care across multiple levels — Detox, IOP, MAT — which means it can, in principle, hold a patient across the arc of a typical treatment episode. The interesting questions about any specific program are rarely the ones its website answers.

Care levels at Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit

The facility offers a continuum of care across multiple levels — Detox, IOP, MAT — 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 gap between "this facility offers residential" and "residential is the right level for this patient" is wider than most facility websites suggest. Bridge it with an outside assessment before committing.

Insurance and payment

Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit 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 facility also accepts TRICARE or military benefits. The insurance problem is almost never that treatment is uncovered — it is that the specific admission was authorized under different terms than the ones in the benefit summary. Get the Verification of Benefits in writing; everything else follows from that one move.

Specialty programming

The facility's documented specialty programming includes: Adolescents. The gap between specialty-branding and specialty-programming is where a lot of families end up disappointed. Specific questions — who, how many hours, what credentials — close the gap before admission.

Before you call

The facility's documented pharmacotherapy offerings suggest MAT is available — confirm the specific medications and prescriber access during the admissions conversation. Before admission, pin down the three operational questions in writing: level of care, insurance, medication policy. The difference between a well-run program and a problematic one usually shows up in how quickly and directly those three are answered.

Listing sourced from the SAMHSA Behavioral Health Treatment Services Locator. Data last synced April 2026. Verify current programs directly with the facility.

Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit at a Glance

Levels of care

Detox · IOP · MAT

Service settings

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

Therapy approaches

Anger management, Brief intervention, Cognitive behavioral therapy, Motivational interviewing, Relapse prevention, Substance use disorder counseling

Age groups

Children/Adolescents, Adults

Special populations

Adolescents

Medications

Acamprosate (Campral®), Disulfiram, Buprenorphine with naloxone, Buprenorphine without naloxone, Buprenorphine (extended-release, injectable), Naltrexone (oral)

Insurance & Payment Accepted

Confirm in-network status before admission — verification is free.

Private insurance

Coverage details →

TRICARE / VA

Coverage details →

Contact & Location

Address

400 Sunrise Highway, Amityville, NY 11701

Facility direct line

516-632-3937

Questions about this facility

Common questions about Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit

Answered from public sources: SAMHSA listings, federal parity regulations, and our own admissions helpline intake notes.

Is Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit listed in the SAMHSA Treatment Services Locator?

Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit appears in our directory because it is sourced from the federal SAMHSA Behavioral Health Treatment Services Locator. The SAMHSA listing is the federal reference for licensed substance-use programs in the United States — inclusion requires active state licensure. If you want to verify independently, you can search by name or ZIP at findtreatment.gov.

What insurance does Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit accept?

Insurance network lists change frequently, so the definitive answer is always to call the facility directly or call our helpline — we verify benefits on the line, for free. In general, most SAMHSA-listed programs in NY accept at least one commercial insurer plus Medicaid. Out-of-network coverage depends on your specific plan's behavioral-health benefits.

How do I know if this level of care is right for me?

The clinical answer comes from an ASAM assessment — a six-dimension evaluation of withdrawal risk, medical conditions, mental state, readiness to change, relapse potential, and living environment. A good intake conversation at Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit (or any SAMHSA-listed program) will walk through those dimensions before recommending a level of care. If you would like help thinking through the fit first, take our 2-minute self-assessment.

Is calling confidential? Will my employer find out?

Substance-use treatment records are protected under 42 CFR Part 2 — a federal rule stricter than HIPAA. An employer cannot access your records without a court order or your written consent. Insurance claims will reflect that behavioral-health services were provided, but not the diagnosis or the content. Calls to our helpline and to Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit directly are confidential.

What happens if I call the helpline instead of the facility?

Our helpline ((866) 728-2725) is answered 24/7 by licensed admissions counselors. They will ask about insurance, location preference, and clinical priorities, then match you against in-network verified programs. You can request Mount Sinai South Nassau Hospital Inpatient Psychiatric Unit specifically. There is no obligation to admit — the call is informational.