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Laboratory

Canton-Potsdam Hospital, Gouverneur Hospital, and Massena Hospital have certified technologists and technicians to analyze your laboratory samples using the latest methods and technology with a focus on accuracy and responsive turnaround. For reference testing (rarely ordered or highly specialized laboratory testing), CPH maintains a contract with world-famous Mayo Clinic.

For provider access to the test catalog, click here.

For your convenience, St. Lawrence Health System offers lab services at six locations where you can expect the highest quality of care. Appointments are not required.

Canton-Potsdam Hospital Main Campus
50 Leroy Street, Potsdam, NY 13676
(315) 261-5940 (Lab)
(315) 261-5240 (Central Scheduling)
Monday - Friday, 6:30AM - 6:00PM
Saturday, 7:00AM - 3:00PM

EJ Noble Building
80 East Main Street, Canton, NY 13617
(315) 261-5945
Monday - Friday, 7:00AM - 3:00PM

Gouverneur Hospital
77 West Barney Street, Gouverneur, NY 13642
(315) 287-1000
Monday - Friday, 7:00AM - 5:30PM
Saturday, 8:00AM - 11:00AM

Helen Snell Cheel Medical Campus
49 Lawrence Avenue, Potsdam, NY 13676
(315) 261-5550
Monday - Friday, 6:30AM - 4:30PM

Massena Hospital
1 Hospital Drive, Massena, NY 13662
(315) 769-4286
Monday - Friday, 7:00AM - 7:00PM

St. Lawrence Health System Medical Campus
6119 US RT 11, Canton, NY 13617
(315) 261-5810
Monday - Friday, 8:00 am - 4:00 pm

Laboratory Director
(315) 261-5940