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Our Radiologists

Zac Alexander Zac Alexander, MD - Staff Radiologist

Dr. Alexander brings 15 years of civilian and military medical training and experience to EagleEye's team of radiologists, and is currently serving as Chief Medical Officer at a major medical center in San Diego. While stationed at Naval Hospital Camp Pendleton, he served as Chief of Radiology, Clinical Guidelines Chair for the Executive Medical Committee, and Lead Mammographer. During his tenure at Camp Pendleton, he also deployed to the largest military medical facility in Landstuhl, Germany where he served as Chief of Interventional Procedures. He is fellowship trained in body imaging with focus on chest and cardiac imaging, and completed his radiology residency at Bethesda Naval Medical Center in 2008. He graduated with a medical degree from the University of Kansas School Of Medicine in 2001. Dr. Alexander currently resides in San Diego, California with his family.

 
Duncan Barlow Duncan Barlow, MD - Senior Radiologist

Dr. Barlow brings to EagleEye 29 years of skilled radiology expertise and training from the nation's most prestigious military medical institutions. He is presently a member of the Colon Cancer Committee of the American College of Radiology. He served as an assistant professor of Radiology and Nuclear Medicine at the Uniformed Services University of the Health Sciences, F. Edward Hébert School of Medicine from 1992 to 1996. He received his medical degree from Eastern Virginia Medical School and his Bachelor's Degree in Biology from Brown University. He is a retired Captain in the United States Navy and has completed tours in Naval Hospitals in Washington State, Maryland, Hawaii, and Guam. Dr. Barlow currently resides with his family in Ashburn, Virginia.

 
Bryan Berkey Bryan Berkey MD Staff Radiologist

Dr. Berkey received his B.S. degree from Brigham Young University in 1997 and his M.D. degree from New York Medical College in 2002. He completed his internship and diagnostic radiology residency at Tripler Army Medical Center in Honolulu, HI in 2007, and thereafter acted as a staff radiologist and chief of the ultrasound department at Tripler for the next four years. During his time at Tripler, he provided part-time teleradiology services under contract with EagleEye. Discharged from the Army in 2011, Dr. Berkey completed a year-long fellowship in musculoskeletal imaging and intervention at the University of Colorado. Since completing his fellowship, Dr. Berkey has been affiliated with two private radiology practices in Boise, ID and Spokane, WA. He lives with his wife and four children in Spokane.

 
David A. Besachio, DO - Staff Radiologist

A 1996 cum laude graduate of James Madison University in Harrisonburg VA, Dr. Besachio earned his D.O. degree from the Chicago College of Osteopathic Medicine in Downers Grove IL in 2001. After an internship at the Naval Medical Center in Portsmouth VA, he completed his diagnostic radiology residency at the Naval Medical Center in San Diego, CA in 2009. From 2011, Dr. Besachio pursued a diagnostic neuroradiology fellowship at the University of Utah in Salt Lake City, UT, receiving his certificate of added qualification in October 2013. Joining EagleEye’s radiologist team in 2015, he currently resides in Norfolk, VA.

 
Roderick Borgie Roderick Borgie, MD - Staff Radiologist

Dr. Borgie brings 16 years of military and civilian medical education and training to EagleEye's cadre of dedicated radiologists. An accomplished Naval Aviator Flight Surgeon, he has undergone rigorous training and been recognized for his leadership in this area. He completed the neuroradiology fellowship program at Massachusetts General Hospital in 2012 and graduated from the diagnostic radiology residency program at the Naval Medical Center (NMC) in San Diego in 2010. Dr. Borgie also completed a general surgery residency program at NMC San Diego in 1998 and received his medical degree from the Uniformed Services University of the Health Sciences in 1997. A 1993 graduate from California Lutheran University, Dr. Borgie currently resides in Virginia Beach, Virginia with his family.

 
Yibo Chen Yibo Chen, MD – Staff Radiologist

A graduate of Union College in Schenectady, NY, Dr. Chen received his MD degree from Albany Medical College in Albany, NY in 2012. He completed his internship and radiology residency at Albany Medical Center in 2017, and became a staff radiologist at the Navy Medical Center in Portsmouth, VA.

 
Paul Clark Paul Clark, DO - Staff Radiologist

EagleEye is pleased to have Dr. Clark on its team as he brings 8 years of civilian and military medical training and education. He completed a pediatric radiology fellowship in 2010 at the Children's Hospital of Philadelphia during which time he presented exhibits on ultrasounds, MR sequences, and head injuries in children. He graduated from the radiology residency program at Tripler Army Medical Center in Honolulu, HI in 2009 and served as its Chief Resident from 2008-2009. He received his Doctor of Osteopathy degree from the Philadelphia College of Osteopathic Medicine in 2004. Dr. Clark currently resides with his family in Fairfax Station, Virginia.

 
D’Haem Robert D’Haem MD - Staff Radiologist

Dr. D’Haem received his undergraduate (1977) and medical (1981) degrees from Wayne State University in Detroit MI. He then undertook a one-year rotating internship at the Naval Regional Medical Center in Portsmouth, VA, after which from 1982 to 1986, he successively served as a naval general medical officer and flight surgeon. Dr. D’Haem then undertook residency training in radiology at the U.S. Naval Hospital in San Diego, CA, completing his specialty training in 1990. After then serving for two years as staff radiologist at the U.S. Naval Hospital in Portsmouth, VA, he entered private practice and is currently on the staff of Hampton Roads Radiology Associates in Norfolk, VA. He resides in Suffolk, VA.

 
Michelle Garnett Michelle Garnett, MD - Staff Radiologist

Dr. Garnett, who joined the EagleEye team in the summer of 2016, graduated from Georgetown University in 1989 and received her M.D. degree from Case Western University in 1995. While attending Case Western Reserve, she undertook a fellowship in neuropsychiatric imaging. Following medical school, Dr. Garnett completed a two-year internship in diagnostic radiology at University Hospital in Cleveland, followed by a three-year residency in diagnostic radiology at the University of Texas Medical School in Houston. She then served from 2000 to 2004 as a radiologist in the United States Navy – the first two years at the Naval Medical Center in Portsmouth VA and the latter two at the naval hospital in Okinawa, Japan. Dr. Garnett has since served as a staff radiologist with three private groups in southeast Virginia and has completed a body and MSK imaging fellowship at the Medical College of Virginia in Richmond. She is married and resides with her family in Suffolk, VA.

 
Michael Gibson Michael Gibson, MD - Staff Radiologist

Dr. Gibson brings to EagleEye 15 years of military and civilian medical education and training, including completion of a fellowship in Body and Musculoskeletal Radiology from the National Capital Consortium in 2006. He has authored or coauthored several journal articles and book chapters in the field of musculoskeletal radiology and has presented papers at the international and national level. He completed the Radiology Residency Program at the Naval Medical Center in San Diego in 2005, and received his medical degree from the University of Virginia School of Medicine in 1997. He attended the College of William and Mary, where he graduated summa cum laude with a Bachelor's of Science in Chemistry in 1993. Dr. Gibson currently resides in San Diego, California with his family.

 
Gregory Hall Gregory Hall, MD - Staff Radiologist

Dr. Hall graduated from the U.S. Naval Academy in 1989, and served as a Naval Special Warfare and SEAL Officer for his first eight years after his commissioning. He then enrolled in the Uniformed Services University Medical School, graduating with an M.D. degree in 2001. He served his internship in pediatrics at the Naval Medical Center in Portsmouth VA and completed his residency in diagnostic radiology in 2009 at the National Naval Medical Center in Bethesda MD. Dr. Hall then became a staff radiologist at the Naval Hospital Camp Lejeune In North Carolina, where he served as Chief of Radiology from 2010 to 2013. Since his separation from the military in 2013, he has provided radiology services as a member of two private groups, most recently in New Bern SC.

 
Grayson Hooper, D.O. – Staff Radiologist

A graduate of Dickinson College in Carlisle, PA, Dr. Hooper received his D.O. degree from West Virginia School of Osteopathic Medicine in May 2010. He then completed a transitional internship and a diagnostic radiology residency at Tripler Army Medical Center. He has since acted as chief of radiology at Bayne-Jones Army Community Hospital in Fort Polk, LA and chief of ultra-sound at Fort Belvoir Community Hospital in the Washington, DC area.

 
Joanna Krause, MD - Staff Radiologist

Dr. Krause joined the EagleEye team in 2015, after having completed her radiology residency at the Naval Medical Center in Portsmouth, VA. She gained her undergraduate degree in biology at North Georgia College and State University – where in her senior year she was named the most outstanding female student -- and her M.D. degree from the Uniformed Services University of the Health Sciences in Bethesda, MD. Dr. Krause and her husband live in Arlington, VA.

 
Christopher Knaus, MD - Staff Radiologist

Dr. Knaus is a 2000 graduate of the U.S. Naval Academy and, prior to entering medical school, trained and served as a naval aviator from the time of his graduation until May 2008. He then attended the Uniformed Services University, receiving his MD degree in 2012. Dr. Knaus interned and in 2017 completed his residency in radiology at Walter Reed Military Medical Center in Bethesda, MD.. He lives in Gaithersburg, MD with his wife and three boys.

Vaughn Marshall Vaughn Marshall, MD - Staff Radiologist

Dr. Marshall joins EagleEye with 38 years of radiology expertise and training from military and civilian medical institutions, including a fellowship in neuroradiology from the University of Southern California and an MRI fellowship from the Huntingon Medical Research Institute. During his distinguished career he served in various clinical and leadership positions, including chairman of radiology and president of a group. He retired from the Navy after 11 years of service with the rank of Commander and has performed research in breast imaging and MRI. Dr. Marshall received his medical degree from the University of Oklahoma School of Medicine in 1974 and completed his radiology residency in 1978 from the Naval Regional Medical Center in Oakland, CA. He currently resides in Evergreen, Colorado with his family.

 
Christopher Nguyen, MD - Staff Radiologist

EagleEye welcomed Dr. Nguyen to its radiologist team in early 2015. After earning his B.S. degree from the University of Pennsylvania in Philadelphia PA, Dr. Nguyen attended the Temple University School of Medicine in that city and received his M.D. degree in 2004. He then completed an internal medicine internship at Walter Reed National Military Medical Center in Bethesda, MD, followed by a residency in diagnostic radiology at the Naval Medical Center in San Diego, CA. Dr. Nguyen and his family live in Alexandria, VA.

 
Elizabeth Puntenney Elizabeth A. Puntenney, MD – Staff Radiologist

A cum laude graduate of the University of Arizona, Dr. Puntenney received her MD degree from the Georgetown School of Medicine in Washington DC and completed her radiology residency at the National Capital Consortium in Bethesda MD in June 2014. She resides near Savannah, GA.

 
Laura Robertson, MD - Staff Radiologist

Laura Robertson brings to EagleEye's teleradiology team over two decades of experience in diagnostic and interventional radiology . A summa cum laude graduate of Yale University, she graduated from the University of Pennsylvania School of Medicine; completed her radiology residency at the Hospital of the University of North Carolina in 1990 and a fellowship in vascular and interventional radiology at The Johns Hopkins Hospital in 1991. Dr. Robertson's practice experience has been diverse, and includes not only extensive teleradiology practice, but also in-hospital and departmental staffing and administration. She resides with her family in Owings Mills, MD, a suburb of Baltimore.

 
Peter D. Snyder, MD - Staff Radiologist

Dr. Snyder joined EagleEye to provide part-time teleradiology services in early 2017. He received a BS degree from Villanova University in 1998 and an MD degree from Jefferson University in 2002. He completed his internship and diagnostic radiology at the Navy Medical Center in San Diego, CA in 2009, after which he practiced diagnostic radiology at the Medical Center and at Walter Reed National Medical Center in Bethesda, MD. Between 2003 and 2005, Dr. Snyder served as battalion surgeon to the 5th Marine Regiment at Camp Pendleton, CA and Fallujah, Iraq. He resides in Bethesda, MD.

 
Karl Soderlund, MD - Staff Radiologist

Dr. Soderlund graduated with distinction from the U.S. Naval Academy in 2005 with a B.S. in Mathematics. He then attended the Johns Hopkins University School of Medicine and received his M.D. degree in 2009. Subsequently, he completed a Transitional Internship at National Naval Medical Center, Bethesda where he was named Intern of the Year in 2010. Dr. Soderlund served as a General Medical Officer in Okinawa, Japan between 2010 and 2012. He completed his residency training in Diagnostic Radiology at the Walter Reed National Military Medical Center in Bethesda, Maryland in 2016, and served as chief resident in his final year. Dr. Soderlund has authored or co-authored multiple peer-reviewed journal articles and book chapters, serves as an Assistant Professor of Radiology at the Uniformed Services University of the Health Sciences and on the ACGME Radiology Residency Review Committee, is member of Alpha Omega Alpha, and earned distinction as the Navy radiology resident of the year in 2015. He currently resides with his wife and three children in Coronado, California.

 
Peter Van Geertruyden Peter Van Geertruyden, MD - Staff Radiologist

Dr. Van Geertruyden brings 12 years of military and civilian medical education and training to EagleEye's team of radiologists. Immediately before joining EagleEye, he completed his radiology residency at the National Capital Consortium during which time he authored several Journal of the American College of Radiology publications, collaborated on several publications, and was awarded the Housestaff Senate Resident of the Year. A 2008 American College of Radiology (ACR) J.T. Rutherford Fellow, Dr. Van Geertruyden remains active in a number of radiology professional organizations. He received his medical degree in 2002 from Tulane University School of Medicine and graduated with a Bachelor of Science from the United States Military Academy in 1996. More recently, Dr. Van Geertruyden completed a Musculoskeletal Radiology Fellowship at Thomas Jefferson University in 2015. He currently resides in Alexandria, VA with his family.

 
Benjamin Williams Benjamin Williams MD Staff Radiologist

Dr. Williams received a B.S. degree from the University of Kansas School of Engineering in 2004 and his M.D. degree from the University of Kansas School of Medicine in 2009. He then interned for one year in basic surgery at the Naval Medical Center in San Diego CA, after which he trained as a naval flight surgeon, serving in that capacity for two years with Carrier Air Wing One homeported in Virginia Beach VA. Beginning in 2013, Dr. Williams entered residency training in radiology at the National Military Medical Center in Bethesda, MD, acting as chief resident from 2016 to 2017. He currently resides in Pensacola, FL with his wife and daughters.