Primary Care - Hempstead - Mount Sinai South Nassau
Behavioral Health • Hempstead, NY • Since 1928
About
Mount Sinai South Nassau (formerly South Nassau Communities Hospital) is a nonprofit, acute-care teaching hospital in Oceanside, NY, with 455 beds and a large physician and staff network. It provides comprehensive services including emergency care, cardiology, oncology, orthopedics, bariatrics, pain management, and mental health, plus advanced radiosurgery (Novalis Tx and Gamma Knife Perfexion). The hospital operates several outpatient centers and is designated a Stroke Center by the NYS Department of Health and a Comprehensive Community Cancer Center by the ACS. It is part of Mount Sinai Health System and serves the Long Island region, with a primary campus in Oceanside and additional locations nearby (e.g., Long Beach). If you’re seeking primary care in Hempstead specifically, Mount Sinai South Nassau may offer affiliated primary care providers in the area through its system, but this page focuses on the hospital and its Long Island locations rather than Hempstead-based primary care directly. For Hempstead-specific primary care, contact Mount Sinai South Nassau’s patient access or visit their site to find affiliated primary care physicians. Contact: info@southnassau.org; 877-768-8462 / 516-632-3000.
Clinic Type
Behavioral Health
Address
250 Fulton Avenue, Hempstead, NY 11550
Phone
(516) 485-5710
info@snch.org
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Insurance & Payment
—
An approved provider for most major insurance plans; programs for eligible patients with reduced-rate care and connections to facilitated-insurance enrollment programs
Reduced-rate care based on ability to pay, Insurance, Facilitated-insurance enrollment programs
Languages Spoken
—
Social Media
Photos







What Patients Say
Overall sentiment across review platforms: negative
- Google (Primary Care - Hempstead practice): 2.6/5 stars (20 reviews)
- Birdeye (Family Medicine practice): 2.2/5 stars (77 reviews)
Patients praise
- Some patients reported positive interactions with specific doctors who communicated well
- Some patients felt they were well taken care of by professional staff members
Common complaints
- Long wait times
- Poor staff responsiveness and perceived rudeness
- Concerns over clinical accuracy and diagnostic quality
- Issues with facility cleanliness and sanitation
- Difficulty with discharge processes and follow-up care instructions
"The wait time is ridiculous almost into a hour and half do not come here"
— Birdeye Review"Simply unsanitary. All you see everyone is on their phones texting, having a good time, or making fun of the patients when they are in pain."
— Local Business ReviewSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Hempstead Chamber of Commerce supports a new health facility | Herald Community Newspapers | www.liherald.com — Nov 3, 2025
- Mount Sinai South Nassau Hospital to open new $70 million center in Wantagh — Aug 1, 2025
- Mount Sinai South Nassau's Vaxmobile offers Freeport Library patrons healthcare on the go | Herald Community Newspapers | www.liherald.com — May 1, 2026
- Dr. Nissim E. Levy, MD - Internal Medicine Physician in Oceanside, NY — May 14, 2026
- Mount Sinai South Nassau to host 42nd annual golf outing to expand cardiac care on the South Shore | Herald Community Newspapers | www.liherald.com — Apr 17, 2026
Information sourced from the clinic's website as of July 11, 2026.
More behavioral health clinics in Hempstead
Mental Health Association of Nassau County (MHANC) is a nonprofit, not-for-profit membership organization focused on improving community mental health in Long Island. Founded in 1953 and headquartered in Hempstead, NY, MHANC advances advocacy, education, program development, and direct services. It reports about 38 employees and annual revenue around $44.7 million. Contact: info@mhanc.org or mhanc@mhanc.org; phone (516) 489-2322. Addresses: 16 Main Street, Hempstead, NY 11550 (HQ) and additional Hempstead offices. Website: mhanc.org.
Comparing your options?
See other behavioral health clinics in Hempstead, or search the full directory by insurance, ratings, and more.

