For an emergency, call 911. The ambulance crew decides the destination. The East End has two emergency departments on the South Fork, one in Riverhead and one in Greenport. Stony Brook Medicine runs three of them, and Northwell Health runs Peconic Bay Medical Center in Riverhead. Between emergencies, most care happens at a primary care doctor or an urgent care center, and Stony Brook Southampton Hospital alone lists more than 1,200 physicians and other providers. If you are weighing a rental, see year-round homes by town and note where the nearest emergency department sits.
Emergency departments
| Facility | Address | Number | What it says about itself |
|---|---|---|---|
| Stony Brook Southampton Hospital | 240 Meeting House Lane, Southampton | (631) 726-8420 | Open 24/7; Provisional Level III Adult Trauma Center; Primary Stroke Center |
| Stony Brook East Hampton Emergency Department | 400 Pantigo Place, East Hampton | 631-638-3433 | Open 24/7, 365 days; serves East Hampton Town including Amagansett, Montauk, Sag Harbor and Springs |
| Peconic Bay Medical Center (Northwell Health) | 1300 Roanoke Avenue, Riverhead | (631) 548-6000 | Full range of clinical services; main number from the hospital’s site |
| Stony Brook Eastern Long Island Hospital | 201 Manor Place, Greenport | See the hospital | Open 24/7; accessible by land, sea and air, with a heliport and an emergency dock |
Details of the first two are on their own pages: Southampton Hospital and the East Hampton Emergency Department.
Shelter Island
Shelter Island is reached by ferry from Greenport, a crossing of about eight minutes, or from North Haven, about five, according to Wikipedia’s account of the island. Stony Brook Eastern Long Island Hospital in Greenport describes itself as accessible by land, sea and air, with a dedicated heliport and an emergency dock. See the Shelter Island profile for the island’s services, and Hamptons Commute for ferry schedules.
Urgent care and primary care
Urgent care sits between a doctor’s appointment and an emergency room. The options near the South Fork are listed on the urgent care page. For a primary care doctor, Stony Brook Southampton Hospital’s provider search lists specialists across Stony Brook Medicine.
Before you need it
Pick the emergency department you would use and save its number in your phone, then register with a primary care doctor before the winter. The first winter checklist covers the rest.
- Stony Brook Southampton HospitalThe South Fork's hospital: 24/7 emergency care, a stroke center and trauma designation, and where to enter.
- Stony Brook East Hampton Emergency DepartmentA 24/7 emergency department for the Town of East Hampton, with its own imaging center.
- Urgent care on the East EndWalk-in clinics in East Hampton, Hampton Bays and Riverhead, with posted hours and what to bring.
Sources
- Stony Brook Medicine, Emergency Departments
- Stony Brook Southampton Hospital, Emergency Department
- Stony Brook Eastern Long Island Hospital, Emergency Department
- Peconic Bay Medical Center, Northwell Health
Checked October 2026. Rules, fees and hours change; confirm with the office or operator before you act.