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Locations & Directions


Main Campus: 75 North Country Road, Port Jefferson, NY 11777

Bariatric Center of Excellence
Frey Family Foundation Medical Arts Buiding on Hospital Campus

Infusion Center
Frey Family Foundation Medical Arts Buiding on Hospital Campus

Outpatient Behavioral Health Services are located at:
100 Highlands Blvd., Port Jefferson, Suite 201
- Partial Hospitalization for Adolescents and Adults
- Eating Disorders Program for Adolescents and Adults

100 Highlands Blvd, Port Jefferson, Suite 101
- Chemical Dependency Clinic

125 Oakland Ave., Port Jefferson, Suite 303
- Mental Health Clinic

Outpatient Rehabilitation Services are located at:
125 Oakland Ave., Port Jefferson, Suite 301
- Physical Therapy
- Occupational therapy
- Speech-Language Pathology

Wound Treatment Centers:

Davis Professional Park
5225-53 Route 347, Building 12, Port Jefferson Station

Walt Whitman Plaza
1895 Walt Whitman Road, Melville

Patient Service Center (Blood Drawing Center) is located at: 
Stony Brook Medical Park, 2500 Nesconset Highway (Rte. 347), Suite 21

Mather Business Offices - Professional Billing, Revenue Cycle, Patient Accounts, Verification, Emergency Room and Physician Coding - are located at:
100 Highlands Blvd, Port Jefferson

Directions to the Main Campus:


By Car:
From Long Island Expressway: Follow Long Island Expressway (L.I.E. 495) to Exit 64, Route 112 Northbound. Travel approximately 10 miles. Cross Long Island Rail Road tracks. Turn right at first traffic light onto North Country Road. Mather Hospital is directly ahead on your left.