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Our Physicians

The Radiology Group (TRG), LLC

The Radiology Group (TRG), LLC is the exclusive provider of physician services for the Center for Medical Imaging. TRG is one of the largest subspecialty radiologist physician groups in Oregon. TRG is composed of 28 radiologists, all of whom are fellowship-trained. This means that CMI has fellowship-trained radiologists in each of the subspecialty sections of diagnostic imaging and interventional radiology. Professional services with this level of clinical expertise and imaging technology are rarely seen outside of an academic environment. TRG physicians have been selected not only on the basis of their specialty training and board certification but also for their desire to practice in an environment where they can provide specialty consultation. As medical imaging leaders, TRG continually addresses the dynamic imaging requirements of the healthcare community.

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The CMI Team of Radiologists

Darshan Acharya, MD

Darshan Acharya, MD

Neuroradiology, Head & Neck

Fellowship: Emory University

Residency: Memorial Health University Medical Center

Medical School: Medical College of Georgia
Lee Ball, MD

Lee Ball, MD

Pediatrics & Women's Imaging

Fellowship: Texas Children's Hospital

Residency: Baylor University

Medical School: Albany Medical College
Gregory Beagle, MD

Gregory Beagle, MD

Body Imaging & Women's Imaging

Fellowship: Oregon Health and Sciences University

Residency: University of Missouri, Kansas City

Medical School: Southern Illinois University School of Medicine
Jeffrey Bonham, MD

Jeffrey Bonham, MD

Musculoskeletal Imaging

Fellowship: University of California San Francisco

Residency: University of Chicago

Medical School: Northwestern University
Dr. Jeffrey R. Cagley

Dr. Jeffrey R. Cagley

Neuroradiology

Fellowship: University of Wisconsin

Residency: Oregon Health & Sciences University

Medical School: University of Iowa Carver School of Medicine
Crispin Chinn, MD

Crispin Chinn, MD

PET & Nuclear Medicine

Fellowship: Oregon Health and Sciences University

Residency: Oregon Health and Sciences University

Medical School: University of Washington
Anthony DiRe, MD

Anthony DiRe, MD

General Radiology

Residency: Oregon Health and Sciences University

Medical School: Georgetown University School of Medicine
William Fife, MD

William Fife, MD

Center for Medical Imaging Medical Director, Body Imaging & Women's Imaging

Fellowship: Los Angeles County University of Southern California Medical Center

Residency: Los Angeles County University of Southern California Medical Center

Medical School: Temple University
Thomas Gibson, MD

Thomas Gibson, MD

Neuroradiology & Women's Imaging

Fellowship: Oregon Health and Science University

Residency: Oregon Health and Science University

Medical School: Oregon Health and Science University
James Hazard MD

James Hazard, MD

Body Imaging & Women's Imaging

Fellowship: University of Virginia

Residency: Oregon Health and Sciences University

Medical School: University of California
Lloyd Heller, MD

Lloyd Heller, MD

Musculoskeletal & Body MRI

Fellowship: Hahnemann University

Residency: Medical College of Pennsylvania

Medical School: Hahnemann University Hospital
Jason B. Hobbs, MD

Jason B. Hobbs, MD

Women's Imaging

Fellowship: Mallinckrodt Institute of Radiology at Washington University

Residency: University of Colorado

Medical School: University of Texas
Ben Jacobson

Ben Jacobson, MD

Neuroradiology, Head & Neck

Fellowship: University of California, Los Angeles

Residency: University of Arizona, Diagnostic Radiology

Medical School: Oregon Health and Sciences University

Yilun Koethe, MD

Interventional Radiology

Fellowship: University of Florida

Residency: University of California, San Francisco

Medical School: Duke University

Charles Kosydar, MD

Charles Kosydar, MD

Body Imaging & Emergency Radiology

Fellowship: Stanford University

Residency: Virginia Mason

Medical School: Oregon Health and Sciences University
Justin LaPlante, MD

Justin LaPlante, MD

Neuroradiology & Emergency Radiology

Fellowship: University of Utah Health Sciences Center

Residency: University of Utah Health Sciences Center

Medical School: Virginia Commonwealth University
Will Lairson, MD

Will Larison, MD

Abdominal Imaging

Fellowship: University of Wisconsin

Residency: University of Wisconsin

Medical School: Oregon Health and Science University

Felix Nautsch, MD

Interventional Radiology

Fellowship: Yale | New Haven, CT

Residency: Yale | New Haven, CT

Medical School: New York Medical College
Joao Prola Netto, MD

Joao Prola Netto, MD

Neuroradiology

Fellowship: Oregon Health and Science University; University of Maryland Medical Center

Residency: Federal University of Sao Paulo

Medical School: Federal University of Health Sciences of Porto Alegre
Dr. Karen Y. Oh

Dr. Karen Y. Oh

Breast & Women's Imaging

Fellowship: University of California Los Angeles, University of Utah

Residency: University of Utah

Medical School: Mayo Medical School

Piper Rooke, MD

Body Imaging, Emergency Radiology

Fellowship: Mayo Clinic, Jacksonville, FL

Residency: University of Florida College of Medicine

Medical School: University of Florida College of Medicine
J. Tyler Thiesing, MD

J. Tyler Thiesing, MD

Interventional Radiology & Neurointernventional Radiology

Fellowship: Dotter Interventional Institute at Oregon Health and Science University

Residency: Oregon Health and Sciences University

Medical School: Oregon Health and Sciences University
Amy Weinstein, MD

Amy Weinstein, MD

Women's Imaging

Fellowship: University of California San Francisco

Residency: University of California San Francisco

Medical School: Oregon Health and Sciences University
Joseph Whetstone, MD

Joseph Whetstone, MD

Cardiothoracic Radiology

Fellowship: Oregon Health and Sciences University

Residency: Oregon Health and Sciences University

Medical School: University of Pittsburg
Kevin Weismann, MD

Kevin Wiesmann, MD

Body Imaging & Intervention

Fellowship: Harvard Medical School

Residency: Mayo Clinic

Medical School: University of California - Davis
Stephen Zinck, MD

Stephen Zinck, MD

Thoracic Imaging

Fellowship: Stanford University

Residency: Oregon Health and Sciences University

Medical School: University of California, Davis

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