Overlake Imaging Associates differentiates itself through the superior training and experience of our radiologists. All of our physicians are board certified radiologists in all areas of radiology with additional fellowship training in one or more of the subspecialty areas listed below.

This specialized focus enables each radiologist to stay on the forefront of his or her specialty, applying cutting edge imaging technologies and procedures to produce and interpret images that optimize clinical decision-making.

Body Imaging
Radiologists with expertise in Body Imaging are specialists in cross-sectional imaging techniques that are used to diagnose and follow disease processes of the chest, abdomen and pelvis. They provide expert interpretations of radiography (x-rays), CT, ultrasound, MRI and PET images.

OIA radiologists with this subspecialty include:
John Clemett, MD
William B. Crenshaw, MD
Diane Engelbrecht, MD
Bryan Leyton, MD
Phillip Lowe, MD
Rich Matthies, MD
Harold Prow, MD
Daniel Smoots, MD
Steve Sperling, MD
Katharine Yoler, MD
Mark Zobel, MD

Musculoskeletal Radiology
Radiologists with a subspecialty in Musculoskeletal Radiology focus on the diagnosis of traumatic, degenerative, and metabolic bone and joint disorders, as well as tumors of bone and muscle. They provide expert interpretation of standard x-rays, MRI, CT and PET images to detect subtle abnormalities involving the bones and surrounding tissues in the evaluation of sports injuries, joint pain and arthritis.

OIA radiologists with this subspecialty include:
John Clemett, MD
Phillip Lowe, MD

Neuroradiology
Radiologists who specialize in Diagnostic Neuroradiology have expertise in the diagnosis and treatment of disease processes affecting the central nervous system, including the brain, head and neck regions, and spine. They provide expert interpretation of CT, ultrasound, MRI and PET images of those areas.

OIA radiologists with this subspecialty include:
Mark Pfleger, MD
Harold Prow, MD

Pediatric Radiology
The subspecialty of Pediatric Radiology is concerned with the radiological manifestations of diseases of children and the unique imaging needs of the pediatric patient. Expert diagnostic interpretations are provided using x-rays, ultrasound, MRI, CT and PET/CT images. The focus and training of this pediatric subspecialty optimizes care for infants and children, with special attention to the emotional needs of these patients and their families.

OIA radiologists with this subspecialty include:
Mark Zobel, MD

Nuclear Medicine
Radiologists with expertise in Nuclear Medicine are specialists in techniques that use radiopharmaceuticals to diagnose and treat a variety of medical conditions. These techniques often provide important physiologic information about body processes that cannot be obtained with standard radiographic techniques.

OIA radiologists with this subspecialty include:
Bryan Leyton, MD

PET (Positron Emission Tomography)
Radiologists with subspecialty expertise in PET are experts in the interpretation of
images using positron emission tomography. A PET scan uses special radiological pharmaceuticals to trace abnormalities in the targeted area of the patient’s body.

OIA radiologists with this subspecialty include:
Daniel Smoots, MD
Mark Zobel, MD

Vascular & Interventional Radiology
Radiologists who specialize in Vascular & Interventional Radiology use fluoroscopy, CT, PET and ultrasound to guide catheters, needles and balloons through the skin by needle puncture to perform a variety of diagnostic and therapeutic procedures. These include angioplasty/stent placement, chemoembolization, radiofrequency ablation, vertebroplasty and many others.

OIA radiologists with this subspecialty include:
William B. Crenshaw, MD
Rich Matthies, MD
Frantz Pierre-Jerome, MD