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St. Charles Hospital's Laboratory is a full-service clinical and anatomical pathology laboratory serving Port Jefferson, East Setauket, Stony Brook and all of the surrounding communities.

The Laboratory holds the Gold Seal of Approval from the Joint Commission and is fully-licensed and approved by the New York State Department of Health.

The Laboratory offers a broad spectrum of clinical and pathology services designed to provide physicians and their patients with the most accurate results.

Some of the most common diagnostic tests and procedures performed include:

  • Blood drawing
  • Pediatric Screening Tests, including for newborns
  • Tests for Allergies

Laboratory Hours are:
Monday – Friday:  8:00 am to 5:00 pm
Saturday:  9:00 am to 1:00 pm

Located on the "Ground Level" of the hospital adjacent to the Radiology Department, customers can access the Laboratory using the "South" elevators and the chapel side entrance of the hospital.

For more information, please call (631) 474-6797.