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Advanced technology for imaging excellence

Designated by the American College of Radiology (ACR) as a Diagnostic Center of Excellence

Peconic Bay Medical Center’s Grossman Imaging Center is part of Northwell Health Imaging—a network of ambulatory imaging centers spanning Long Island, New York City and Westchester. 

Northwell Imaging is the first radiology practice in New York state designated by the American College of Radiology as a Diagnostic Center of Excellence based upon our efficient, safe, high quality care. 

We use state-of-the-art equipment and the very latest advances in imaging techniques to ensure consistent, high quality images and uncompromised accuracy.

ACR registered in the following modalities:

  • CT Scanning
  • MRI Scanning
  • Ultrasound
  • Nuclear Medicine
  • Mammography

Our services


  • MRI scan (High field 1.5T) – Magnetic resonance imaging (MRI) is a diagnostic imaging procedure that uses a combination of a large magnet, radiofrequencies and a computer to produce detailed images of organs and structures within the body.
  • CT scan (64 slice) – Also known as a CAT scan, this diagnostic imaging procedure uses a combination of X-rays and computer technology to produce images of the body.
  • Lung cancer screening – Lung cancer screening is a regular preventive health check, much like a mammogram or colonoscopy. It is used to test for lung cancer before you have symptoms. Our screening experts are trained in detecting lung cancer in its earliest and most treatable stages—so that they can act before the disease has a chance to spread.
  • Ultrasound (sonogram) – An ultrasound is a noninvasive diagnostic procedure used to assess soft tissue structures such as muscles, blood vessels and organs. It uses sound waves that bounce off the organs like an echo and are converted by a computer into an electronic picture of the organs or tissues under study.
  • Digital X-ray – X-rays use electromagnetic energy beams to produce images of internal tissues, bones and organs.
  • DEXA scan (bone density test) – A bone densitometry test is used to diagnose osteoporosis, a condition in which bones become fragile and brittle.

Breast Imaging

  • 3D mammogram – Also known as a digital mammogram or digital breast tomosynthesis, 3D mammography allows the radiologist to examine breast tissue one layer at a time. This improves the ability to detect abnormalities while reducing false alarms due to overlapping tissue.
  • Breast ultrasound – An ultrasound, also commonly referred to as a sonogram, is a diagnostic imaging procedure used to view internal organs as they function and to assess blood flow through vessels.

Our Technology

Digital Radiography

Digital radiography enables x-rays to be obtained digitally, without the use of film. These digital images provide exquisite detail and allow for improved, more accurate diagnoses.  Digital radiography decreases patient waiting time since the physicians will have almost instantaneous access to images — there is no film to process.  Furthermore, the technology limits patients x-ray exposure to the absolute minimum.
Most important, patients have the security of knowing that PBMC physicians can access radiological images via computer from their home or office — or from anywhere in the world where there is Internet access — via the Hospital's secure website. Within minutes of taking a digital x-ray, the emergency room staff can, for example, consult with an orthopedist at home, who can order treatment to begin immediately, even before he or she gets to the hospital.

Interventional /Angiography Services

Peconic Bay Medical Center's Interventional/Angiography Department uses medical imaging and the expertise of highly skilled and trained Radiologists to diagnose and treat diseases of the arteries and many other conditions. Angiography is part of a larger subspecialty of radiology called interventional radiology.

Interventional radiologists use angiography to visualize the inside of blood vessels. Interventional radiologists also perform a wide variety of other "non-vascular" procedures. For example, in the case of an infected kidney, a small catheter can be inserted to drain the infection and avoid surgery. To control internal bleeding, an interventional radiologist will use a catheter to locate the site of hemorrhage, and then treat it through a small incision in the groin.

Interventional radiology is on the forefront of medical innovation and has pioneered many minimally invasive procedures that improve patient health and quality of care.

Magnetic Resonance Imaging (MRI)

Magnetic resonance imaging is a painless technology that offers a detailed view inside the body. Using a large magnet, radio waves, and a computer, it can produce two-or three-dimensional images without using X-rays. In many instances, MRI has become the standard for imaging the brain, spine, and musculoskeletal system.

Peconic Bay Medical Center utilizes a Siemens HIGH FIELD 1.5T magnet to perform its MRI services, which produces excellent clinical images of all body parts, especially neurological and musculoskeletal anatomy, in a very efficient time frame. It also provides excellent imaging of the cerebral and carotid blood vessels through its Angiography (MRA) capabilities.

Patients who come to Peconic Bay Medical Center for their MRI scan will enjoy convenient parking, point of service registration (right in the MRI facility), convenient appointment times including evenings and Saturdays, as well as a variety of musical choices to listen to while being scanned.

Women’s Imaging - Digital Mammography, DEXA, and Sonography

Peconic Bay Medical Center offers a range of women’s services including Digital Mammography, Ultrasound, and DEXA imaging (bone densitometry) in a comfortable and private dedicated women’s services area.

Nuclear Medicine Imaging

Nuclear medicine is a branch of medical imaging that uses small amounts of radioactive material to diagnose and determine the severity of or treat a variety of diseases, including many types of cancers, heart disease, gastrointestinal, endocrine, neurological disorders and other abnormalities within the body.  Peconic Bay Medical Center offers Nuclear medicine imaging utilizing highly specialized equipment, specially trained Radiologists, and certified nuclear technologists.

Peconic Bay School of Radiologic Technology

Peconic Bay Medical Center is proud to host Long Island’s most respected training program for radiologic technicians. A 24-month program accredited by the Joint Review Committee on Education in Radiologic Technology (JRCERT) and licensed by the New York State Department of Health, Peconic Bay's School of Radiologic Technology provides expert training for our region's next generation of radiologic technologists, and also assures that our current providers are always up-to-date on the latest advances in professional practice and technology.  The School also has an affiliation with Empire State College for further advanced courses of study for graduates of the program.

Additional information about this specialty is available from the following resources:

American Board of Medical Specialties

American Board of Radiology

Grossman Imaging Center

496 County Road 111, Building F
Manorville, NY 11949

(631) 405-3240

Mon, Tues, Thurs: 7 am to 8 pm
Wed, Fri: 7 am to 4 pm
Sat, Sun: Closed 

Same-day appointments often available. Medicare, Medicaid, and most insurance plans accepted. Call to check your coverage.

PBMC Patient Service Center

33 Montauk Highway
Quogue, NY 22959

(631) 653-4670

(631) 653-4673

Mon - Fri: Thurs: 8:30 am to 12:30 pm 

Contact Us

Radiology Department: (631) 548-6172

Main Directory: (631) 548-6000

Call for more information about any of our clinical services or to schedule an appointment with one of our experts. Representatives are available on weekdays from 8am to 6pm and weekends from 9am to 5pm.