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Pentucket Medical provides clinical laboratory and pathological diagnosis (histology) services to health care providers in the Merrimack Valley and beyond.

The presence of laboratory and histology services in our Andover, Haverhill, Riverwalk/ Lawrence and Newburyport sites is an important advantage to our patients and to the physicians who care for them, giving them access to test results faster than if the work were outsourced.

Benefits of Testing and Imaging at Pentucket Medical Include:

With specimen collection at each Pentucket Medical location, there is no need to make an additional trip to a hospital, navigate the typical maze of hallways, or deal with inconvenient parking.

In addition, by going to Pentucket Medical you have:

  • An in-house radiologist and pathologist that interprets your results usually the same day.  Urgent results are available within hours.
  • Your test results available to your ordering clinician as soon as the results are in our system. 
  • Results will be automatically posted on your Patient Gateway (Portal) for your review.
  • Results available to any clinician in the Partners HealthCare System including those at Massachusetts General and Brigham and Women’s Hospitals.


“High quality histology is crucial to accurate pathological diagnosis,” says Dr. George Kwass, a Haverhill-based pathologist who interacts with Pentucket’s histology service. “Pentucket Medical is fortunate to have such a high quality histology laboratory with state of the art equipment and talented histo-technologists.”


Pentucket Medical has remained committed to ensuring the safety of our patients during the COVID-19 pandemic.

Since June 1, we have been treating patients on-site per the four-phase guidance issued to healthcare facilities by Governor Baker and the Massachusetts Department of Health and Human Services.

In the coming weeks, we will continue following stringent infection prevention processes and implementing specific precautions to ensure a safe environment for essential patient care services.

Here are some of the changes you will see on your next visit to Pentucket Medical:

When scheduling an appointment with a clinician, you will be provided a phone number to call when you arrive at the office this will allow you to remain safe in your car until it is time to see your provider essentially cutting out waiting rooms

We appreciate your support.


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