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Mount Sinai South Nassau Mental Health Clinic

Baldwin, NY

SAMHSA Verified

in Baldwin, NY.

Free helpline · 24/7

Need help choosing the right program?

Call helpline: +1 (205) 973-2878

Direct line to Mount Sinai South Nassau M...: 516-377-5400

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About Mount Sinai South Nassau Mental Health Clinic

Non-profit outpatient mental health facility offering comprehensive treatment for substance use, co-occurring conditions, and crisis intervention services.

This listing is sourced from the SAMHSA Behavioral Health Treatment Services Locator. Data last synced: April 2026. Always verify current programs and insurance directly with the facility.

Quick Facts

Programs, populations, and payments verified via SAMHSA.

Insurance & Payment Accepted

Verify coverage
Medicaid
Medicare
Private insurance
TRICARE / VA
Self-pay / Cash
Sliding scale

Contact & Location

Address

2277 Grand Avenue, Baldwin, NY 11510

Get directions →

Facility direct line

516-377-5400

Frequently Asked Questions

Does Mount Sinai South Nassau Mental Health Clinic accept Medicaid?
SAMHSA data does not list Medicaid among this facility's accepted payment types. Call 516-377-5400 directly to confirm — coverage may have changed since the last SAMHSA sync. You can also browse other NY centers that accept Medicaid.
What level of care does Mount Sinai South Nassau Mental Health Clinic offer?
Does Mount Sinai South Nassau Mental Health Clinic have specialized programs?
SAMHSA data does not list specialized populations. The facility may still offer specialty tracks — confirm directly.
What therapy methods does Mount Sinai South Nassau Mental Health Clinic use?
Specific therapy approaches are not listed in SAMHSA data. Contact the facility for clinical details.
How do I start treatment at Mount Sinai South Nassau Mental Health Clinic?
Call the facility directly at 516-377-5400 for an intake assessment. Our free 24/7 helpline (+1 (205) 973-2878) can also help you compare programs, verify insurance, and navigate options. No physician referral is required.
Is treatment confidential?
Yes. Federal law (42 CFR Part 2) provides strict confidentiality protections for substance use treatment records — stricter than HIPAA. Records cannot be disclosed without written consent, even to family, employers, or law enforcement.
What happens when you call? (general intake process)

Most treatment centers follow a 4-step intake: (1) confidential assessment — substance history, mental health, insurance, preferences (protected by 42 CFR Part 2); (2) insurance verification — facility contacts your plan to confirm coverage and out-of-pocket costs; (3) level-of-care recommendation — clinical staff match you to detox, residential, PHP, IOP, or outpatient based on severity; (4) admission typically within 24–48 hours. Timing varies by facility and bed availability.

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Sources & References

  • SAMHSA — Behavioral Health Treatment Services Locator. Source of facility programs, services, and accepted payments.
  • SAMHSA — NSDUH, 2023.
  • CMS — Mental Health Parity and Addiction Equity Act (MHPAEA).
  • 42 CFR Part 2 — Confidentiality of SUD Patient Records.

Facility data last synced: April 2026. Editorial policy.

24/7 Helpline +1 (205) 973-2878