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Top Radiologists and Technologists

Meet Your Radiologists

Your radiologist is the doctor who reads your radiology study, for example an MRI or CT scan, and then delivers your results to your physician. It is very important that the radiologist who reads your study be highly trained to make sure you get accurate results the first time.  In general, radiologists train for 13 or 14 years in preparation for their career, but here at Barnes-Jewish Hospital our top radiologists have raised the bar even higher. 100% of our radiologists become sub-specialized in specific areas of the body and are trained to detect even the smallest abnormality. All of the radiologists at Barnes-Jewish Hospital are board certified and are recognized experts in their field. Many of our radiologists can be found on America’s Top Doctors, published annually by Castle Connolly and on Best Doctors in America, developed by Best Doctors Inc.

Gilbert Jost, MD
Director of the Mallinckrodt Institute of Radiology
Barnes-Jewish Radiology Doctors

Daniel Picus, MD
Diagnostic Radiology Division Chief
Barnes-Jewish Radiology Doctors


Abdominal Imaging
Including Gastrointestinal/
Genitourinary Radiology

Vamsi Narra, MD, Chief
Dennis Balfe, MD
Nirvikar Dahiya, MD
Kathryn Fowler, MD
Jay Heiken, MD
William James, MD
Lawrence Kotner, MD
Robert Levitt, MD
Michael Lin, MD
Vincent Mellnick, MD
Christine Menias, MD
Mary Middleton, MD
William Middleton, MD
Kathryn Robinson, MD
Cary Siegel, MD
Sharlene Teefey, MD

Breast Imaging

Catherine Appleton, MD, Chief
Dione Farria, MD, MPH
Cheryl Herman, MD
Susan Holley, MD, PhD
Barbara Monsees, MD
Valerie Reichert, MD
Kimberly Wiele, MD

Body Computed Tomography

Sanjeev Bhalla, MD, Chief
Jay Heiken, MD, Chief

Cardiothoracic Imaging
Including Cardiac Imaging

Sanjeev Bhalla, MD, Chief
Andrew Bierhals, MD
David Gierada, MD
Harvey Glazer, MD
Fernando Gutierrez, MD
Kristopher Cummings, MD
Cylen Javidan-Nejad, MD
Constantine Raptis, MD
Janice Semenkovich, MD
Marilyn Siegel, MD
Pamela Woodard, MD

Emergency/Trauma Radiology

Vincent Mellnick, MD, Chief
Constantine Raptis, MD, Chief

Interventional Neuroradiology

DeWitte Cross, MD, Chief
Colin Derdeyn, MD
Christopher Moran, MD

Interventional Radiology

Michael Darcy, MD, Chief
James Duncan, MD, PhD
Jennifer Gould, MD
Seung Kwon Kim, MD
Seth Klein, MD
Naganathan Mani, MD
Robert Pallow, MD
Daniel Picus, MD
Nael Saad, MD
Suresh Vedantham, MD
Darryl Zuckerman, MD

Musculoskeletal Radiology

David Rubin, MD, Chief
Jonathan Baker, MD
Jennifer Demertzis, MD
Louis Gilula, MD
Travis Hillen, MD
Jack Jennings, MD, PhD
Daniel Wessell, MD, PhD

Neuroradiology

Franz Wippold, MD, Chief
Tammie Benzinger, MD, PhD
DeWitte Cross, MD
Colin Derdeyn, MD
Mokhtar Gado, MD
Robert McKinstry, MD, PhD
Michelle Miller-Thomas, MD
Christopher Moran, MD
Matthew Parsons, MD
Aseem Sharma, MD
Joshua Shimony, MD, PhD
Katie Vo, MD

Ultrasonography

Nirvikar Dahiya, MD, Head
Sharlene Teefey, MD
William Middleton, MD

Nuclear Medicine

Barry Siegel, MD, Division Chief
Delphine Chen, MD
Victor Davila, MD
Farrokh Dehdashti, MD
Keith Fischer, MD
Robert Gropler, MD
Jonathan McConathy, MD, PhD
Henry Royal, MD
Akash Sharma, MD
Jerold Wallis, MD


Meet Your Radiologic Technologists and Staff

Your radiologic technologist is the person who performs your radiology study, for example an MRI or CT scan. It is very important that the radiologic technologist be highly trained to make sure you get the best image possible and ultimately accurate results the first time. 100% of the technologists at Barnes-Jewish Hospital are registered with the American Registry of Radiologic Technologists (ARRT) and have gone through extensive training to know how to use the minimal amount of radiation to obtain your images.

Additionally, all sonographers at Barnes-Jewish Hospital Radiology are registered with the American Registry for Diagnostic Medical Sonography.  Since every patient is unique, the sonographer’s high-quality training enables them to distinguish even the most subtle differences between normal and abnormal anatomy.

“The most rewarding part about being a radiologic technologist at BJH Radiology is the opportunity to make an impact and help someone else.”
- Ronald Rivers, RT(R), CT


“Patients should have their imaging done at BJH Radiology because the staff really knows their profession and they really value their work ethic along with their patient’s well-being and comfort.”
- Amber Sax, RT(R), Neuroradiology


“It feels good to be a part of a team of the best-trained sonographers and radiologists that cares about every single patient they scan. We do a lot of complex cases, and it’s very rewarding to be a part of a team that does its absolute very best to diagnose and help develop treatment plans for our patients.”
- Angela Seidel, RDMS, Ultrasound