Diagnostic Radiology

The Department of Diagnostic Imaging (Radiology and Nuclear Medicine), is a subspecialty-oriented imaging group on the university model. Fellowship-trained radiology subspecialists deal with each of the recognized imaging specialties: Nuclear Medicine, Neuroradiology/Head-Neck, Body Imaging (CT, Ultrasound, and MRI from the thoracic inlet to the pelvic floor), GI Fluoroscopy, Angio/Interventional, and Breast Imaging.

Equipment is state-of-the-art and includes 64-slice GE CTscanners, three SPECT/CT gamma cameras, a GE Discovery ST PET/CT, McKesson PACS, Digital Mammography, 3D Mammography, stationary and multiprobe portable ultrasound units, and 1.5 and 3.0 Tesla MRI Units.

The radiologic subspecialists provide far more than film interpretation, because the department is oriented towards imaging-guided organ biopsies and imaging-guided procedures of all kinds. The professional staff includes 11 full-time nurses trained in conscious sedation, to assist with over 20 guided procedures each day, and an 8-bed fully-staffed recovery ward is located adjacent to the department for this purpose. Four Radiology PA’s perform procedures, assist with research analysis, and interpret certain images under radiologist supervision.


Ermelinda Bonaccio, MD
Chair of Diagnostic Radiology

Craig Hendler, MD
Vice Chair

Body Imaging

Thomas Laudico, DO
Director of Body CT and Ultrasound

Benjamin McGreevy, MD
Director of Body MRI

Charles Roche, MD
Director of Quality, Safety and Research

Larson Hsu, MD
Director of 3D Imaging Lab

Lalit K. Gurtoo, MD
Zachary Grossman, MD, FACR
Peter Klieger, MD
Alan Klitzke, MD
Prasanna R. G. Kumar, MD
Peter A. Loud, MD
Janine Milligan, DO
Refky Nicola, DO
Timothy Hanna, RPA-C
Ghinita Burbulea, RPA-C
Vaughn Sheeran, RPA-C
Jennifer Ministero, RPA-C

Neuroradiology, Head & Neck

Ronald A. Alberico, MD
Director of Neuroradiology

Ahmed Belal, MD
Angio/Interventional Radiology

Garin M. Tomaszewski, MD
Director of Angio/Interventional Radiology

Omar Hasan, MD
Michael Petroziello, MD
Michael Ryan, RPA-C, RT
Michelle Lichtenthal, RPA-C
Jennifer Meyer, RPA-C

Breast Imaging

Marie Quinn, MD
Director of Breast Imaging

Sara Majewski, MD
Prasanna R.G. Kumar, MD
Richard Gong, MD

Nuclear Medicine

Dominick M. Lamonica, MD
Director of Nuclear Medicine

Paul Grant, DO
Zachary D. Grossman, MD, FACR
Alan K. Klitzke, MD

Administrative Director

Jack M. LaShomb, RT(R), MS