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Mount Sinai South Nassau

2.8
(891 reviews)

Business Details

1 Healthy Way, Oceanside, NY
11572, United States
(516) 632-3000
https://www.southnassau.org/sn/about-us

About

HospitalPain ManagementHome Health Care ServiceOutpatient ServicesEmergency Room
We Find a Way - the Flagship Long Island hospital of the Mount Sinai Health System

Location

Mount Sinai South Nassau
1 Healthy Way, Oceanside, NY
11572, United States

Hours

MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours

Reviews

2.8
891 reviews
5 stars
345
4 stars
40
3 stars
17
2 stars
44
1 star
445
  • JN
    Jacqueline N
    4 days ago
    1.0
    In March 2026, I called the fourth floor Psychiatric ward nursing station and asked to be transferred to the head nurse regarding an incident that happened with my family member who was a patient on their floor. I asked if I could speak to the head nurse regarding an incident. I was hung up on by the first nurse who answered. I called back and was told by another nurse that there is no one I can be transferred to and she hung up. I called back and this time a male nurse answered. He was immediately hostile with me. I asked to be transferred to the head nurse or directing nurse. He didn't even let me finish the sentence and hung up on me. I called again and he answered again. I asked him what his name was . He hung up on me. I called back. This time he was even more hostile. I tried to explain how serious the matter was and my voice began to crack. He said to me " awww you wanna speak to the head nurse? Awwww what's wrong? Here I'll transfer you. Are you happy now? Are you happy now? " In a very angry mocking tone. I asked him his name. He told me a name that started with the letter J. And then he hung up the phone on me. The spite, hostility, and aggression in his voice gave me chills. Knowing that patients with severe mental illnesses are put into this person's care. It keeps me up at night.
  • DP
    Danny Poon
    Apr 6, 2026
    5.0
    My wife had an extremely traumatic delivery a year ago, but I couldn’t be more thankful to our OB, Dr. Robert Dean and the Labor and Delivery team at MSSN. He saved our baby’s life, and she is thriving today. Thank you to all the nurses, resident doctors, and lactation counselors. We also want to thank Dr. Lincoln Ferguson, who has been her amazing pediatrician since birth.
  • MS
    Merlita Sanchez
    Apr 5, 2026
    5.0
    Estoy muy feliz y agradecida con las personas que me atendieron solo fueron unas horas las que estuve ahi internada pero eso vasto estoy eternamente agradecida con las personas que me atendieron
  • PB
    Pat Barrow
    Apr 5, 2026
    3.0
    This location has much to be desired I arrived 2am in the morning extreme pain. Was told I needed to stay two days to rid of pneumonia. No problem. Was taken to the lower level room alone. Nurses station near by In pain I buz for someone and it took too long to respond. Even walked to the nurse station, this way I got response. On a shif crane I again had to go to the nurse station where one clerk would not even look at me when speaking. The food was reasonable but would had beed better if it were actually hot. Most of the doctors who visited me were detached. not personable, threw out instructions and in 5 min, left. I was given no supplies,, cover for my feet, never received the extra hospital gown I asked for. The kitchen staff were more personable then those who were suppose to be "professional". At that point I began to drill them with question because with such care I was concerned about my health being a recent transplant client at the great mt. Sinai NYC. where there is a enormous difference in patient care. I was given a sheet of medication I need to pick up from a pharmacy. They have a pharmacy and should have given me medication for at least one day as my pharmacy was closed sat and sun. So on Easter Sunday I have to call around to find who can fill out the prescription. Nassau medical center is considered the worst hospital on Long Island but having been a patient there is matchless compared to mt Sinai oceanside. All staff needs to be restrained in my opinion. Very upset.
  • NR
    Natalya Rooney
    Mar 16, 2026
    1.0
    My mother went to the ER on Saturday with severe lower right hip and leg pain rated 10/10 and spent approximately four hours there. Unfortunately, she was discharged in the same level of pain she arrived with and without any clear explanation of what might be causing it. The only imaging performed was an X-ray. A CT scan was refused because there was no fall or injury involved, despite the severity of her pain. The provider I spoke with on the phone had very poor bedside manner and was dismissive of our concerns. At one point she said that if we wanted, they could prescribe Motrin or Tylenol “if that would make us feel better,” which felt extremely dismissive given that my mother was in severe pain. She mentioned she would ask her attending, but the attending never spoke with me directly. The attending did speak with my mother, however my mother has limited English proficiency, which made communication difficult. No interpreter or additional effort was made to ensure she fully understood her condition or treatment plan. Additionally, my mother has a history of cardiac arrhythmia and prior ablation, yet she was discharged with a muscle relaxant without much discussion regarding safety. After four hours in the ER, my mother left still in severe pain with no meaningful answers or plan for further evaluation of the hip and leg pain. This experience was extremely disappointing and concerning. Based on this experience, I would not recommend this emergency department to family or friends.

Frequently Asked Questions About Mount Sinai South Nassau

Where is Mount Sinai South Nassau located?

Mount Sinai South Nassau is located at 1 Healthy Way, Oceanside, NY, 11572, USA.

What are the operating hours of Mount Sinai South Nassau?

Mount Sinai South Nassau operates 24 hours a day, 7 days a week, including weekends.

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