Location, Directions, and Parking

Mount Sinai South Nassau is located at One Healthy Way in Oceanside, New York, on the South Shore of Long Island. It is between Oceanside Road and Washington Avenue. This page provides driving and public transit directions and information about parking. The information is also available in Spanish, below.

Address: One Healthy Way, Oceanside, NY 11572

Current Patient and Visitor Lots

We have several parking lots:

  • Lot 3: Patients, visitors, and front door valet
  • Lot 6: Patients, visitors, and handicapped parking
  • Lot 7A: Patients, visitors, and handicapped parking

Emergency Department Location

The Emergency Department’s main entrance for drive-up or walk-in patients has moved from Washington Avenue to the east side of Oceanside Road, south of Oswald Court and north of Nassau Parkway. The ambulance entrance remains on Nassau Parkway.