Denver Health Radiologists

All Denver Health radiologists are board-certified by the American Board of Radiology and all have completed fellowships and other advanced training. We offer subspecialist reads that are informed by the latest medical research. Each radiologist completes extensive medical education annually. Our radiologists participate in educating the next generation of medical providers by teaching University of Colorado School of Medicine students, residents and fellows. 

Over the years, multiple Denver Health radiologists have been named “Top Docs” by 5280 Magazine, including Denver Health physicians specializing in Neuroradiology, Pediatric Radiology, Nuclear Medicine and Interventional Radiology. 

We follow industry best practices, including the use of standardized reports and reports with hyperlinks to key images. Our Picture Archiving and Communications System (PACS) is state-of-the-art, having recently been updated in 2019.

The ultimate goal of Denver Health radiologists is to provide imaging services reflecting the highest standards of clinical excellence delivered in a compassionate, caring and respectful environment.

Our Team

David M. Naeger, M.D., Director of Radiology
Professor and Vice Chair, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Cardiac and Thoracic Imaging, Nuclear Medicine

David Naeger MD

Dr. Naeger serves as the Director of Radiology at Denver Health, with oversight of the department’s clinical, research and educational programs. He also serves as a Professor and Vice Chair in the Department of Radiology at the University of Colorado School of Medicine.

Dr. Naeger earned his medical degree at Duke University School of Medicine, where he graduated AΩA (Alpha Omega Alpha), the most widely recognized honor society in medicine. After medical school, he moved to the University of California-San Francisco (UCSF) to complete his residency in Diagnostic Radiology, during which he served as a chief resident and was awarded the prestigious Elmer Ng Award.

While at UCSF, he completed a research fellowship and remained after his residency to complete clinical fellowships in Cardiac & Pulmonary Imaging and in Nuclear Medicine. After his fellowships, he was appointed to the faculty at UCSF, ultimately serving as the Department of Radiology's Associate Chair for Education and the co-director of the Henry I. Goldberg Center for Advanced Imaging Education.

In 2019, Dr. Naeger joined Denver Health as the Director of Radiology, and Professor and Vice Chair in the University Of Colorado Department Of Radiology. 

Dr. Naeger has consistently been honored for his excellence as an educator, serving as a Course Director for popular student electives and for numerous national and international courses. In 2015, Dr. Naeger was awarded the prestigious Academic Senate Distinction in Teaching Award given to only two institution UCSF faculty members per year. He was inducted into the Haile T. Debas Academy of Medical Educators in 2014 in recognition of his substantial contributions to medial education in the department. He served on the Committee on Curriculum and Educational Policy, UCSF’s highest-level school committee overseeing the physician program, and as a faculty mentor, teaching speaking skills and helping to onboard new faculty.

Dr. Naeger’s research and interests focus on novel curricular programs that enhance the education of medical students, residents, fellows and practicing radiologists. He has conducted research on clinical considerations in the daily interpretation of radiologic images, with an emphasis on the imaging and diagnosis of lung cancer, lung biopsies, chest imaging and PET/CT imaging. He has authored 80 peer-reviewed publications, 11 book chapters, more than 60 abstracts and multiple non-peer reviews publications and teaching aids. Dr. Naeger has given more than 60 national and international lectures and numerous Grand Rounds presentations. He is active in his professional societies, serving on multiple executive committees, program planning committees, and educational/societal grant study sections. He reviews for multiple medical journals and serves as an Associate Editor for the Journal Radiology and Academic Radiology.

In his leadership service at UCSF, Dr. Naeger has a notable record of promoting diversity and inclusion programming. Through his work in his Department’s Diversity and Inclusion Committee, he has helped to improve access to mentored clinical and research experiences for historically underrepresented groups in radiology. As Associate Chair for Education, he promoted Diversity and Inclusion programing in all programs, including awareness of biases, barriers to inclusion, and the importance of diversity in our workforce.

Matthew A. Monson, D.O., Associate Director of Radiology
Associate Professor of Clinical Practice, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Pediatric Radiology

Matthew Monsoon MD Radiologist

Dr. Monson is the Associate Director of Radiology. He has been a member of the Denver Health Department of Radiology since 2011. Dr. Monson’s clinical practice includes Pediatric Radiology and General Diagnostic Radiology. Dr. Monson maintains current medical staff privileges at Denver Health and Children’s Hospital Colorado. 

Dr. Monson received his undergraduate degree in Biological Science from Colorado State University in Fort Collins, CO, and received his medical training at Kirksville College of Osteopathic Medicine in Kirksville, MO. His residency training in diagnostic radiology was completed at Tripler Army Medical Center in Honolulu, HI, and his fellowship training was completed at Children’s Hospital and Harvard Medical School in Boston, MA. Dr. Monson is board- certified in Diagnostic Radiology and Pediatric Radiology by the American Board of Radiology. Dr. Monson holds the title of Associate Professor of Clinical Practice, Department of Radiology, University of Colorado School of Medicine. He is published in several peer reviewed journals and book chapters and has presented at national meetings on subjects related to pediatric radiology. He is a member of the American College of Radiology, Society for Pediatric Radiology, and the American Roentgen Ray Society.

He was voted “Top Doc” on the 5280 magazine list for Pediatric Radiology in 2019.

Elizabeth Dee, M.D., Chair, CT Clinical Operations Committee
Instructor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Body Imaging

Dr. Dee has been a member of the Department of Radiology at Denver Health since 2004. She received her undergraduate and medical degrees from University of Virginia School of Medicine in Charlottesville, VA. Her transitional internship occurred at Deaconess Medical Center in Spokane, WA. Dr. Dee’s residency and fellowship training were undertaken at University of Colorado Health Sciences Center in Denver. She is board-certified by the American Board of Radiology.

Dr. Dee holds the title of Instructor, Department of Radiology, University of Colorado School of Medicine. She has been the recipient of numerous teaching awards. Dr. Dee has been a co-author of various peer-reviewed journal articles and scientific exhibits. In her work focused on the clinical CT operations, Dr. Dee has spearheaded efforts to streamline contrast ordering, CT standardized templates, and radiation safety procedures; Dr. Dee is an expert in the integration of online medical records with the operations of radiology. 

Dr. Dee was voted a “Top Doc” by 5280 magazine, an honor bestowed on top physicians in Denver. 

Michael A. Fleisher, M.D., Chair, MR Clinical Operations Committee
Instructor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Neuroradiology

Dr. Fleisher has been a member of the Department of Radiology at Denver Health since 2006. He received his undergraduate degree in economics from Johns Hopkins University in Baltimore, and his master’s degree in public health from Columbia University in New York. Dr. Fleisher received his medical degree from Jefferson Medical College in Philadelphia. His internship in general medicine occurred at Cedars Sanai Medical Center in Los Angeles, and his residency training was undertaken at Temple University Hospital in Philadelphia. Dr. Fleisher’s fellowship training in neuroradiology occurred at Los Angeles County Hospital in Los Angeles.

Dr. Fleisher holds the title of Clinical Instructor, Department of Radiology, University of Colorado School of Medicine. He is board-certified by the American Board of Radiology. Dr. Fleisher’s professional interests include the field of head and neck imaging, including malignancies and congenital abnormalities. He also focuses on traumatic injuries to the face, brain and spine. Dr. Fleisher participates regularly in interdepartmental conferences with Denver Health’s departments of Neurology, Neurosurgery, Orthopedic spine surgery and Otolaryngology. His educational interests include day-to-day education of the radiology residents on service and various lectures to the residents as a group.

Dr. Fleischer was awarded the Community Pillar Award in 2016 in recognition of the important role he plays at Denver Health and in the surrounding community. 

Dr. Fleischer was voted a “Top Doc” by 5280 magazine, an honor bestowed on top physicians in Denver.

Erica Pollack, M.D., Head of Women’s Imaging
Assistant Professor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Breast Imaging

Dr. Pollack has been a member of the Department of Radiology at Denver Health since 2014. She received her undergraduate degree from Amherst College in Amherst, MA., and her medical degree from New York University School of Medicine in New York City, NY. Dr. Pollack completed her internship at Highland Hospital in Oakland, CA. She undertook a residency in diagnostic radiology, as well as a fellowship in breast imaging at Columbia University Medical Center in New York. She is board-certified by the American Board of Radiology. Dr. Pollack holds the title of Assistant Professor, Department of Radiology, University of Colorado School of Medicine. Her professional interests include breast imaging, biopsies, teaching and international radiology.

Linda Miketic-Fielding, M.D., Head of Nuclear Medicine
Associate Professor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Nuclear Medicine, Body Imaging

Dr. Fielding has been a member of the Department of Radiology at Denver Health since 2000. She received her undergraduate degree from Duke University in Durham, N.C., and her medical degree from the University of Pittsburgh. Both her internship and residency training were completed at St. Francis Medical Center in Pittsburgh. Dr. Fielding’s fellowship in oncology was undertaken at Massachusetts General Hospital, in Boston. She holds the title of Associate Professor, Department of Radiology, University of Colorado School of Medicine. She has been a coauthor of various peer-reviewed journal articles. She is board-certified by the American Board of Radiology. 

Dr. Miketic-Fielding was voted a “Top Doc” by 5280 magazine, an honor bestowed on top physicians in Denver.

Thanh Vu, M.D., Head of Ultrasound
Instructor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Ultrasound, Body Imaging

Dr. Vu has been a member of the Department of Radiology at Denver Health since 2006. She received her undergraduate degree in religious studies and biology from University of Rochester in Rochester, N.Y. Dr. Vu’s medical degree was obtained from the University of Colorado School of Medicine. She completed a transitional internship at the University of Hawaii in Honolulu. Her residency training and fellowship in body imaging both occurred at University of Colorado Health Sciences Center in Denver. She is board-certified by the American Board of Radiology. Dr. Vu holds the title of Clinical Instructor, Department of Radiology, University of Colorado School of Medicine. 
 
Jennifer Cranny, M.D.
Assistant Professor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Breast Imaging, Body Imaging
 
Dr. Cranny has been a member of the Department of Radiology at Denver Health since 2019. Dr. Cranny earned her undergraduate degree in chemistry from Texas A&M University in College Station, TX. She attended medical school at University of Texas Medical School in Houston, TX. Dr. Cranny undertook a transitional internship and residency at Baylor College of Medicine in Houston, TX. Her fellowship was completed at Emory University in Atlanta, GA.

Dr. Cranny currently holds the title of Assistant Professor, Department of Radiology, University of Colorado School of Medicine. Dr. Cranny is board-certified by the American Board of Radiology. Although Dr. Cranny’s clinical skills include a wide range of imaging services, she specializes in mammography and has held former directorial positions in breast imaging. She has been a coauthor of various peer-reviewed journal articles, and has served repeatedly as a course instructor focusing on breast MRI interventions for the Radiological Society of North America (RSNA).

Stephen F. Futterer, M.D.
Assistant Professor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Neuroradiology

Dr. Futterer has been a member of the Department of Radiology at Denver Health since 2019. He received his undergraduate degree in chemistry from University of North Carolina, Chapel Hill, NC, and his medical degree from University of Maryland, Baltimore, MD. Dr. Futterer completed his internship at Northwestern University in Chicago, IL, and his residency training at University of Virginia in Charlottesville, VA. Dr. Futterer undertook 2 fellowships as part of his post-graduate academic training. His first fellowship was in thoracic imaging and occurred at University of Maryland in Baltimore, MD.

His second fellowship was in neuroradiology and was completed at University of Virginia in Charlottesville, VA. Dr. Futterer is board-certified by the American Board of Radiology and currently holds the title of Assistant Professor, Department of Radiology, University of Colorado School of Medicine. Across his medical career, Dr. Futterer has held multiple leadership positions to include serving as the Administrative Director of Emergency Radiology and subsequently as the Interim Chief of Neuroradiology during his tenure at Northwestern Memorial Hospital in Chicago, IL. He has coauthored multiple articles in peer-reviewed journals and has been a lead presenter at various professional radiologic society meetings.

Joseph Houkal, M.D.
Assistant Professor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Neuroradiology

Dr. Houkal has been with a member of the Department of Radiology at Denver Health since 2018. He earned his undergraduate degree in neuroscience from Amherst College in Amherst, MA during which he received the Phi Beta Kappa award for best performance in mathematics. Dr. Houkal’s medical degree was received from University of Colorado School of Medicine and his internship in general medicine was completed at Exempla St. Joseph Hospital in Denver, CO. His fellowship training in neuroradiology occurred at University of California in San Diego, CA. Dr. Houkal is board-certified by the American Board of Radiology and currently holds the title of Assistant Professor, Department of Radiology, University of Colorado School of Medicine. Dr. Houkal has been the coauthor of a number of scientific papers concerning both clinical and health policy research.

Nishant K. Mehta, M.D.
Assistant Professor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: MRI, Breast Imaging

Dr. Mehta has been a member of the Department of Radiology at Denver Health since 2018. He earned his undergraduate degree summa cum laude in biomedical/electrical engineering from the University of Southern California at Irvine, CA. Dr. Mehta earned his medical degree from the Keck School of Medicine at University of Southern California in Los Angeles, CA. He completed his internship at St. Mary Medical Center in Long Beach, CA and residency training at Loma Linda University Medical Center in Loma Linda, CA. Dr. Mehta was a recipient of the Bradley MRI Fellowship award, which is a prestigious fellowship named after William G. Bradley, Jr., PhD., FACR, a nationally recognized pioneer in clinical MRI imaging. His fellowship training occurred at University of California San Diego Medical Center. Dr. Mehta is a board-certified diplomate of the American Board of Radiology. He currently holds the title of Assistant Professor, Department of Radiology, University of Colorado School of Medicine. Across his professional career, Dr. Mehta has coauthored various educational exhibits and has served as a key speaker at selected professional radiologic society conferences.

Scott D. Tomsick, M.D.
Instructor, Department of Radiology, University of Colorado School of Medicine
Subspecialty Focus: Musculoskeletal Imaging

Dr. Tomsick has been a member of the Department of Radiology at Denver Health since 2010. Dr. Tomsick received his undergraduate degree in psychology from Duke University in Durham, NC, and his medical degree from University of Cincinnati College of Medicine in Cincinnati, OH. He completed his internship at Good Samaritan Hospital in Cincinnati, OH, and residency training at University of Cincinnati, Cincinnati, OH. Dr. Tomsick’s fellowship in musculoskeletal imaging was undertaken at University of Colorado Health Sciences Center in Denver, CO during which he received the fellow teaching award. Dr. Tomsick currently holds the title of Clinical Instructor, Department of Radiology, University of Colorado School of Medicine. He is board-certified by the American Board of Radiology. Dr. Tomsick has coauthored various publications with a particular focus on musculoskeletal and spine disease/injury.