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Medical School:  University of Cincinnati College of Medicine – Cincinnati, OH

Internal Medicine: Rush-Presbyterian-St. Luke’s Medical Center – Chicago, IL

Diagnostic Radiology: Tulane University Medical Center – New Orleans, LA

Neuroradiology/Endovascular Surgical Neuroradiology: Mallinckrodt Institute of Radiology,

Washington University – St. Louis, MO

American Board of Radiology 1994

Certificate of Added Qualifications in Neuroradiology 1996

Donald Frei, MD, is one of the board-certified neurointerventional surgeons at RIA Neurovascular in Englewood, Colorado. 

Dr. Frei earned his Doctor of Medicine at the University of Cincinnati College of Medicine, in Cincinnati, Ohio. He served his internship at Rush-Presbyterian-St. Luke's Medical Center in Chicago, before continuing his training with a diagnostic radiology residency at Tulane University Medical Center in New Orleans. 

Dr. Frei went on to complete rigorous fellowship training in neuroradiology / endovascular surgical neuroradiology at Washington University's Mallinckrodt Institute of Radiology in St. Louis. Dr. Frei has also contributed to several articles in peer-reviewed journals. In addition to his certification through the American Board of Radiology, he also has a certificate of added qualifications in neuroradiology.

He provides a wide range of neurointerventional services and has specific interest in the endovascular treatment of acute stroke, intracranial aneurysms, and extracranial revascularization techniques. He also offers minimally invasive procedures, including catheter-directed stroke intervention, angioplasty, stent revascularization, and treatments for cerebral aneurysms and arteriovenous malformations (AVMs).

Medical School:  University of Florida College of Medicine, Junior Honors Medical School – Gainesville, FL

Internal Medicine: Mallinckrodt Institute of Radiology, Washington University Medical Center – St. Louis, MO

Diagnostic Radiology: Mallinckrodt Institute of Radiology, Washington University Medical Center – St. Louis, MO

Pediatric Radiology: Mallinckrodt Institute of Radiology / St. Louis Children’s Hospital, Washington University Medical Center – St. Louis, MO

American Board of Radiology 1996

Certificate of Added Qualification in Pediatric Radiology 1998, 2008

Medical School: Eastern Virginia Medical School – Norfolk, VA

Surgery: University of Alabama – Birmingham, AL

Diagnostic Radiology: University of Alabama – Birmingham, AL

Abdominal Imaging: Presbyterian Hospital, University of Pittsburgh – Pittsburgh, PA

American Board of Radiology 2002

Medical School:  The University of Texas HSC San Antonio – San Antonio TX

Diagnostic Radiology: The University of Wisconsin School of Medicine and Public Health – Madison WI

Abdominal Imaging: The University of Wisconsin School of Medicine and Public Health – Madison WI

Breast Imaging: The University of Wisconsin School of Medicine and Public Health – Madison WI

American Board of Radiology 2017

Tufts University School of Medicine, Boston, MA 2006 – 2010
M.D., Doctor of Medicine

St. Luke’s – Roosevelt Hospital Center, New York, NY 2010 – 2011 Columbia University College of Physician and Surgeons
Internal Medicine Preliminary Year Internship

Boston University Medical Center, Boston, MA 2011 – 2015
Diagnostic Radiology Residency

Stanford University Medical Center, Stanford, CA 2015 – 2017 Diagnostic Neuroradiology Fellowship

American Board of Radiology 2015

Richard Bellon, MD, is one of the board-certified neurointerventional surgeons practicing at RIA Neurovascular, in Englewood, Colorado. In addition to his board certification by the American Board of Radiology, he also has a certificate of added qualifications in neuroradiology. 

Dr. Bellon earned his Doctor of Medicine at the renowned Case Western Reserve School of Medicine, in Cleveland. He served his internship at MetroHealth Medical Center in Cleveland before completing his diagnostic radiology residency at the University of Arizona, in Tucson. Dr. Bellon also completed prestigious fellowship programs in diagnostic neuroradiology at Stanford University in Palo Alto, California, and interventional neuroradiology at Massachusetts General Hospital, in Boston. 

Dr. Bellon has also contributed to many articles in peer-reviewed journals and publications. He is a senior member of the Society of Neurointerventional Surgery and the American Society of Neuroradiology. 

Dr. Bellon focuses on minimally invasive endovascular treatments for cerebral aneurysms, arteriovenous malformations (AVMs), dural fistula, and stroke. He offers a patient-focused approach and takes time to answer questions and ensure his patients understand their conditions and treatment options. 

Medical School:  Georgetown University School of Medicine – Washington, DC

Internal Medicine: Washington Hospital Center – Washington, DC

Radiology: Georgetown University Medical Center – Washington, DC

Neuroradiology: Barrow Neurological Institute – Phoenix, AZ

American Board of Radiology 1994

National Board of Medical Examiners 1990

Medical School:  Albert Einstein College of Medicine – New York, NY

University of Colorado Health Sciences Center – Denver, CO

Diagnostic Radiology: University of Colorado Health Sciences Center – Denver, CO

Ultrasound and CT:  University of Colorado Health Sciences Center – Denver, CO

Angiography and Interventional: Denver Veterans Administration, University of Colorado Hospital – Denver, CO

American Board of Radiology 1983

University of Texas Medical Branch, School of Medicine - Galveston, TX

Washington Hospital Center, Department of Surgery - Washington, DC

Radiology: Hartford Hospital, Department of Radiology - Hartford, CT

Neuroradiology: Johns Hopkins Hospital, Division of Neuroradiology - Baltimore, MD

American Board of Radiology – Diagnostic Radiology  2012
American Board of Radiology – Neuroradiology Subspecialty 2014

Medical School:  Yale University School of Medicine – New Haven, CT

Internal Medicine: Danbury Hospital – Danbury, CT

Diagnostic Radiology: Hospital of Saint Raphael – New Haven, CT

Nuclear Medicine: Mallinckrodt Institute of Radiology, Washington University School of Medicine – St. Louis, MO

American Board of Radiology 1995

American Board of Nuclear Medicine 1996

ABR Special Competency in Nuclear Medicine 1997

Medical School:  Duke University School of Medicine – Durham, NC

Internal Medicine: Christiana Care Health Services – Newark, DE

Diagnostic Radiology: Harvard Medical School, Massachusetts General Hospital – Boston, MA

Breast Imaging: Harvard Medical School, Massachusetts General Hospital – Boston, MA

American Board of Radiology 2013

Medical School:  Government Medical College – India

Transitional: William Beaumont Hospital – Royal Oak, MI

Diagnostic Radiology: William Beaumont Hospital – Royal Oak, MI

Cross-Sectional Imaging: Johns Hopkins Medical Institutions – Baltimore, MD

American Board of Radiology 2003

Medical School: University of Texas Medical School at Houston, Houston,TX

Internal Medicine: Texas A&M University Health Science Center – Scott & White Hospital, Temple, TX

Diagnostic Radiology: University of Texas Health Science Center at Houston, Houston, TX

Cardiothoracic Radiology: National Jewish Health/University of Colorado, Denver, CO

American Board of Radiology 2015

Medical School:  University of the Witwatersrand Medical School – Johannesburg, South Africa

Radiology: Johannesburg General Hospital – Johannesburg, South Africa; St. Louis University Health Science Center – St. Louis, MO

Body Imaging: Cornell University Medical Center, New York Hospital – New York City, NY

Mammography: New York University Breast Imaging Center – New York City, NY

American Board of Radiology 1998

Medical School:  University of New Mexico School of Medicine – Albuquerque, NM

Transitional: Providence Sacred Heart Medical Center – Spokane, WA

Diagnostic Radiology: Baylor University Medical Center – Dallas, TX

Breast Imaging: University of Colorado Anschutz Medical Campus – Denver, CO

American Board of Radiology 2016

Medical School:  Ohio State University – Columbus, OH

Transitional: Michigan State University, Grand Rapids Medical Education Partners – Grand Rapids, MI

Diagnostic Radiology: Michigan State University, Grand Rapids Medical Education Partners – Grand Rapids, MI

Neuroradiology:  Barrow Neurological Institute at St Joseph’s Hospital and Medical Center – Phoenix, AZ

American Board of Radiology 2012

Medical School: University of Utah School of Medicine – Salt Lake City, UT

Internal Medicine: University fo Utah – Salt Lake City, UT

Diagnostic Radiology: Hartford Hospital – Hartford, CT

Diagnostic Neuroradiology: Mallinckrodt Institute of Radiology, Barnes-Jewish Medical Center – St. Louis, MO

Musculoskeletal Radiology: University of Alabama at Birmingham – Birmingham, AL

American Board of Radiology 2009

Medical School: Saint Louis University School of Medicine, St. Louis, MO

Internal Medicine: Exempla St. Joseph Hospital, Denver, CO

Diagnostic Radiology: Stanford University Hospital, Stanford, CA

Musculoskeletal Imaging: Stanford University Hospital, Stanford, CA

American Board of Radiology 2005