Our extraordinary team of passionate physicians.
Dr. John Allred is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Allred earned his medical degree from the University of Alabama School of Medicine. He completed his residency in Diagnostic Radiology at the University of Minnesota and subsequent fellowship in Neuroradiology at Vanderbilt University. Prior to medical school, Dr. Allred earned a Bachelor of Science degree in Biology and Chemistry from the University of Alabama at Birmingham (UAB).
Dr. John Allred is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Neuroradiology. He holds memberships in the American College of Radiology (ACR), Radiological Society of North America (RSNA), American Society of Neuroradiology, American Roentgen Ray Society (ARRS), Society of Nuclear Medicine and Molecular Imaging, and Tennessee Medical Association (TMA).
In his free time, Dr. Allred enjoys traveling with his wife and children, going hiking, and playing both golf and poker.
Dr. Nicolas Appleton is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Appleton earned his medical degree from the University of Tennessee Health Science Center College of Medicine. He completed his residency in Diagnostic Radiology at the San Antonio Military Medical Center and served in the US Air Force as the Medical Director of the Department of Radiology for 11 years. Prior to medical school, Dr. Appleton earned a Bachelor of Science degree in Chemistry and Biology from the University of Tennessee.
Dr. Appleton is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), and Tennessee Medical Association (TMA).
In his free time, Dr Appleton enjoys being a meme lord and spending time with his wife and children.
Dr. Jose Barriocanal is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology Dr. Barriocanal earned his medical degree from Temple University School of Medicine. He completed his residency in Diagnostic Radiology at Temple University and subsequent fellowship in Nuclear Medicine and Pet-CT at Johns Hopkins University. Prior to medical school, Dr. Barriocanal earned a Bachelor of Science degree in Chemistry at Georgetown University and a Ph.D in Chemistry at the University of Delaware.
Dr. Barriocanal is board certified by both the American Board of Radiology and The American Board of Nuclear Medicine. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), Society of Nuclear Medicine, and Tennessee Medical Association (TMA).
In his free time, Dr. Barriocanal enjoys traveling, soccer, and photography. He is fluent in Spanish, basic Portuguese and German.
Dr. Justin Buchanan is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Buchanan earned his medical degree from Temple University School of Medicine Alpha Omega Alpha Medical Honor Society. He completed his residency in Diagnostic Radiology at Vanderbilt University School of Medicine. Prior to medical school, Dr. Buchanan earned a Bachelor of Science degree in Biology from the University of North Carolina Summa Cum Laude.
Dr. Buchanan is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Roentgen Ray Society (ARRS), and Tennessee Medical Association (TMA).
In his free time, Dr Buchanan enjoys spending time with his wife and three labradoodles, running, mountain biking, triathlons, golf, reading, live music, and finding great restaurants.
Dr. Jared Burlison is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Burlison earned his medical degree from Vanderbilt University School of Medicine. He completed his residency in Diagnostic Radiology at the University of New Mexico Health Science Center and subsequent fellowship in Nuclear Medicine at Vanderbilt University. Prior to medical school, Dr. Burlison earned a Bachelor of Science degree in Biology and Chemistry at the University of Illinois and a Ph. D in Molecular Physiology and Biophysics at Vanderbilt University Medical Center.
Dr. Burlison is board certified by both the American Board of Radiology and The American Board of Nuclear Medicine. He holds memberships in the American College of Radiology (ACR), American Roentgen Ray Society (ARRS), Society of Nuclear Medicine and Molecular Imaging, and Tennessee Medical Association (TMA).
In his free time, Dr. Burlison enjoys traveling, snow skiing, scuba diving and boating/water sports.
Dr. Justin Calvert is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Calvert earned his medical degree from the University of Mississippi School of Medicine. He completed his residency in Diagnostic Radiology as Chief Resident at Vanderbilt University School of Medicine and subsequent fellowship in Vascular and Interventional Radiology at the Northwestern University McGaw and in Neuro-interventional Surgery at the University of Tennessee College of Medicine. Prior to medical school, Dr. Calvert earned a Bachelor of Science degree in Biology from Mississippi College Summa Cum Laude.
Dr. Calvert is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Roentgen Ray Society (ARRS), Society of Interventional Radiology (SIR), and Tennessee Medical Association (TMA).
In his free time, Dr. Calvert enjoys traveling, fitness, boating, water-skiing, deep-sea fishing and music.
Dr. Harigovinda Challa is a board-certified, fellowship-trained radiologist specializing in Diagnostic and Pediatric Radiology. Dr. Challa earned his medical degree from Rangaraya Medical College (India). He completed his residency in Diagnostic Radiology at Government General Hospital (India) Nizam's Institute of Medical Sciences and subsequent fellowship in Emergency Radiology, Pediatric Radiology and Neuroradiology at the University of Washington School of Medicine. Prior to medical school, Dr. Challa earned a Bachelor of Science degree in Biology, Physics & Chemistry at Jagarlamudi Kuppuswamy Choudary College (India).
Dr. Challa is board certified by the American Board of Radiology with Certificates of Added Qualifications (CAQ) in both Neuroradiology and Pediatric Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Society of Neuroradiology, Society for Pediatric Radiology, and Tennessee Medical Association (TMA).
In his free time, Dr. Challa enjoys reading and spending time with his wife and children.
Dr. Kevin Crawford is a board-certified, fellowship-trained physician specializing in Diagnostic Radiology. Dr. Crawford earned his medical degree from Loma Linda University School of Medicine in Loma Linda, CA, graduating in 2014. He finished his internship at the University of Tennessee College of Medicine at Chattanooga in 2015. Following that, he completed his diagnostic radiology residency and subsequent fellowship in breast imaging at Emory University School of Medicine, Department of Imaging Sciences in Atlanta, GA in 2020.
Dr. Crawford is board certified by the American Board of Radiology. He holds a membership with the Tennessee Medical Association (TMA). His clinical interests include breast and body imaging.
In his free time, Dr. Crawford enjoys spending time with his wife and two daughters, including cooking, taking long walks, exploring big cities, and finding local coffee shops.
Dr. Parker Freels is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Freels earned his medical degree from the University of South Carolina School of Medicine. He completed his residency in Diagnostic Radiology as Chief Resident and subsequent fellowship in Interventional Radiology at theUniversity of Florida College of Medicine. Prior to medical school, Dr. Freels earned a Bachelor of Science degree in Biology and a Bachelor of Arts in Spanish from Wofford College.
Dr. Freels is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology Society of Interventional Radiology, RFS, American Roentgen Ray Society (ARRS), Sigma Delta Pi National Spanish Honor Society, Alpha Epsilon Delta Health Pre-Professional Honor Society, Association of University Radiologists, American Medical Association, and Tennessee Medical Association (TMA).
His clinical interests include interventional oncology (including percutaneous ablation, chemoembolization (TACE), Y-90 radioembolization), women's health for the treatment of fibroids, and neurologic interventions.
In his free time, Dr. Freels enjoys traveling with his spouse Georgia and daughter Robin, hiking, fishing, cooking, reading, exercising, drawing, photography and live music.
Dr. Harris Hawk is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Hawk earned his medical degree from the Medical College of Georgia. He completed his residency in Diagnostic Radiology at the University of Virginia School of Medicine and subsequent fellowship in Neuroradiology and Interventional Neuroradiology at the Medical University of South Carolina. Prior to medical school, Dr. Hawk earned a Bachelor of Science degree at the University of Georgia.
Dr. Hawk is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the American College of Radiology (ACR), the American Medical Association and Tennessee Medical Association (TMA).
In his free time, Dr. Hawk enjoys time with his wife and two daughters, he has a passion for cooking, running, and spending time outdoors.
Dr. Patrick Henderson is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Henderson earned his medical degree from the University of South Carolina College of Medicine. He completed his residency in Diagnostic Radiology at the Augusta University College of Medicine and subsequent fellowship in Body Imaging at the University of California School of Medicine. Prior to medical school, Dr. Henderson earned a Bachelor of Science degree from the University of South Carolina.
Dr. Henderson is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Institute for Ultrasound in Medicine, Tennessee Radiological Society and Tennessee Medical Association (TMA).
When not at work, Dr. Henderson enjoys spending free time with his wonderful wife and 3 daughters, including annual Disney trips, traveling for sporting events, and playing golf.
Dr. Andrew Hill is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Hill earned his medical degree from the Medical College of Georgia. He completed his residency in Diagnostic Radiology at the Brigham and Women’s Hospital/Harvard Medical School and subsequent fellowship in Breast Imaging and Intervention at the Brigham and Women’s Hospital/Harvard Medical School and in Musculoskeletal Imaging and Intervention at the University of Virginia School of Medicine. Prior to medical school, Dr. Hill earned a Bachelor of Arts, Neuroscience from Vanderbilt University.
Dr. Hill is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Roentgen Ray Society (ARRS), Society of Skeletal Radiology, Tennessee Radiological Society, and Tennessee Medical Association (TMA).
In his free time, Dr. Hill enjoys history, weightlifting and golfing.
Dr. Michael Nichols is a board-certified, fellowship-trained radiologist specializing in both Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Nichols earned his medical degree from Vanderbilt University School of Medicine. He completed his residency in Diagnostic Radiology at Vanderbilt School of Medicine and subsequent fellowship in Vascular and Interventional Radiology at Vanderbilt School of Medicine. Prior to medical school, Dr. Nichols earned a Bachelor of Engineering degree from Vanderbilt University School of Engineering.
Dr. Nichols is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the American College of Radiology (ACR), American Roentgen Ray Society (ARRS), and Tennessee Medical Association (TMA).
In his free time, Dr. Nichols enjoys spending time with his wife and three children, including traveling, cooking, and gathering with friends. He also enjoys reading, fixing cars, and exercising.
Dr. Joseph Oros is a board-certified, fellowship-trained radiologist specializing in Diagnostic and Pediatric Radiology. Dr. Oros earned his medical degree from the University of Tennessee College of Medicine. He completed his residency in Diagnostic Radiology at Baylor University Medical Center and subsequent fellowship in Pediatric Radiology at Vanderbilt University School of Medicine. Prior to medical school, Dr. Oros earned a Bachelor of Science degree in Microbiology from the University of Tennessee.
Dr. Oros is board certified by the American Board of Radiology. He holds memberships in the Society of Pediatric Radiology (SPR) and Tennessee Medical Association (TMA).
In his free time, Dr. Oros enjoys rock climbing, hiking & camping, and golfing. He is an extremely novice mandolin player and is a fan of the Tennessee Volunteers and the Memphis Grizzlies.
Dr. Samuel Porter is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Porter earned his medical degree from the University of Tennessee College of Medicine. He completed his residency Diagnostic Radiology at the University of Tennessee College of Medicine and subsequent fellowship in Diagnostic Neuroradiology at Emory University School of Medicine. Prior to medical school, Dr. Porter earned a Bachelor of Science degree in Biochemistry and Cellular and Molecular Biology from the University of Tennessee.
Dr. Porter is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American Society of Neuroradiology, American Society of Head and Neck Radiology, American Roentgen Ray Society (ARRS), Tennessee Radiological Society and Tennessee Medical Association (TMA).
His clinical interests include collaborating with other neuroscience and head/neck specialists.
In his free time, Dr. Porter enjoys traveling with his family, hiking, fishing, and playing tennis.
Dr. Steve Quarfordt is a board-certified, fellowship-trained radiologist specializing in both Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Quarfordt earned his medical degree from East Carolina University School of Medicine. He completed his residency in Diagnostic Radiology at the Baptist Health System and subsequent fellowship in Vascular and Interventional Radiology at the University of Florida College of Medicine. Prior to medical school, Dr. Quarfordt earned a Bachelor of Art’s degree in Biochemistry from the University of Colorado and a Master of Science degree in Cellular Biology from East Carolina University.
Dr. Quarfordt is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the Radiology Society of North America (RSNA), American Roentgen Ray Society (ARRS), Society of Neuro-interventional Radiology, Society of Interventional Radiology (SIR), and Tennessee Medical Association (TMA).
In his free time, Dr Quarfordt loves to spend time with his wife, three daughters, and extended family. He enjoys traveling and being outdoors.
Dr. Jason Smith is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Smith earned his medical degree from Vanderbilt University School of Medicine. He completed his residency in Diagnostic Radiology at the University of Texas Southwestern Medical Center and subsequent fellowship in Diagnostic Neuroradiology at the University of Washington School of Medicine. Prior to medical school, Dr. Smith earned a Bachelor of Science degree in Molecular and Cellular Biology from Vanderbilt University College of Arts and Science.
Dr. Smith is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Society of Neuroradiology, American Society of Emergency Radiology, American Medical Association and Tennessee Medical Association (TMA).
In his free time, Dr. Smith enjoys raising his three boys, hiking, exploring the Southeast, landscaping, technology/gaming, and reading.
Dr. Trent Willingham is a board-certified, fellowship-trained radiologist specializing in both Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Willingham earned his medical degree from the University of Tennessee Health Science Center. He completed his residency in Diagnostic Radiology at the University of Tennessee Health Science Center and subsequent fellowship in Interventional Radiology at the Medical University of South Carolina. Prior to medical school, Dr. Willingham earned a Bachelor of Science degree in Biochemistry and Molecular Biology from the University of Tennessee and a Master of Science degree in Pharmacology from the University of Tennessee Health Science Center.
Dr. Willingham is board certified by the American Board of Radiology. He holds memberships in the Tennessee Radiological Society, Society of Interventional Radiology (SIR) and Tennessee Medical Association (TMA)
His clinical interests include interventional oncology including percutaneous hepatic and biliary Interventions.
In his free time, Dr. Willingham enjoys spending time with his family, golfing, and rooting for the Tennessee Volunteers, the Tennessee Titans, and the Atlanta Braves.
Interventional radiologists are board-certified physicians who utilize minimally invasive, image-guided procedures to diagnose and treat almost every organ system. Interventional radiology benefits the patient because it has less risk, less pain, and less recovery time than open surgery. Our IR team is well known for its expertise and has won awards for its innovative procedures.
Dr. Trent Willingham is a board-certified, fellowship-trained radiologist specializing in both Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Willingham earned his medical degree from the University of Tennessee Health Science Center. He completed his residency in Diagnostic Radiology at the University of Tennessee Health Science Center and subsequent fellowship in Interventional Radiology at the Medical University of South Carolina. Prior to medical school, Dr. Willingham earned a Bachelor of Science degree in Biochemistry and Molecular Biology from the University of Tennessee and a Master of Science degree in Pharmacology from the University of Tennessee Health Science Center.
Dr. Willingham is board certified by the American Board of Radiology. He holds memberships in the Tennessee Radiological Society, Society of Interventional Radiology (SIR) and Tennessee Medical Association (TMA)
His clinical interests include interventional oncology including percutaneous hepatic and biliary Interventions.
In his free time, Dr. Willingham enjoys spending time with his family, golfing, and rooting for the Tennessee Volunteers, the Tennessee Titans, and the Atlanta Braves.
Dr. Parker Freels is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Freels earned his medical degree from the University of South Carolina School of Medicine. He completed his residency in Diagnostic Radiology as Chief Resident and subsequent fellowship in Interventional Radiology at theUniversity of Florida College of Medicine. Prior to medical school, Dr. Freels earned a Bachelor of Science degree in Biology and a Bachelor of Arts in Spanish from Wofford College.
Dr. Freels is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology Society of Interventional Radiology, RFS, American Roentgen Ray Society (ARRS), Sigma Delta Pi National Spanish Honor Society, Alpha Epsilon Delta Health Pre-Professional Honor Society, Association of University Radiologists, American Medical Association, and Tennessee Medical Association (TMA).
His clinical interests include interventional oncology (including percutaneous ablation, chemoembolization (TACE), Y-90 radioembolization), women's health for the treatment of fibroids, and neurologic interventions.
In his free time, Dr. Freels enjoys traveling with his spouse Georgia and daughter Robin, hiking, fishing, cooking, reading, exercising, drawing, photography and live music.
Dr. Michael Nichols is a board-certified, fellowship-trained radiologist specializing in both Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Nichols earned his medical degree from Vanderbilt University School of Medicine. He completed his residency in Diagnostic Radiology at Vanderbilt School of Medicine and subsequent fellowship in Vascular and Interventional Radiology at Vanderbilt School of Medicine. Prior to medical school, Dr. Nichols earned a Bachelor of Engineering degree from Vanderbilt University School of Engineering.
Dr. Nichols is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the American College of Radiology (ACR), American Roentgen Ray Society (ARRS), and Tennessee Medical Association (TMA).
In his free time, Dr. Nichols enjoys spending time with his wife and three children, including traveling, cooking, and gathering with friends. He also enjoys reading, fixing cars, and exercising.
Dr. Harris Hawk is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Hawk earned his medical degree from the Medical College of Georgia. He completed his residency in Diagnostic Radiology at the University of Virginia School of Medicine and subsequent fellowship in Neuroradiology and Interventional Neuroradiology at the Medical University of South Carolina. Prior to medical school, Dr. Hawk earned a Bachelor of Science degree at the University of Georgia.
Dr. Hawk is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the American College of Radiology (ACR), the American Medical Association and Tennessee Medical Association (TMA).
In his free time, Dr. Hawk enjoys time with his wife and two daughters, he has a passion for cooking, running, and spending time outdoors.
Dr. Justin Calvert is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Calvert earned his medical degree from the University of Mississippi School of Medicine. He completed his residency in Diagnostic Radiology as Chief Resident at Vanderbilt University School of Medicine and subsequent fellowship in Vascular and Interventional Radiology at the Northwestern University McGaw and in Neuro-interventional Surgery at the University of Tennessee College of Medicine. Prior to medical school, Dr. Calvert earned a Bachelor of Science degree in Biology from Mississippi College Summa Cum Laude.
Dr. Calvert is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Roentgen Ray Society (ARRS), Society of Interventional Radiology (SIR), and Tennessee Medical Association (TMA).
In his free time, Dr. Calvert enjoys traveling, fitness, boating, water-skiing, deep-sea fishing and music.
Dr. Steve Quarfordt is a board-certified, fellowship-trained radiologist specializing in both Diagnostic Radiology and Vascular and Interventional Radiology. Dr. Quarfordt earned his medical degree from East Carolina University School of Medicine. He completed his residency in Diagnostic Radiology at the Baptist Health System and subsequent fellowship in Vascular and Interventional Radiology at the University of Florida College of Medicine. Prior to medical school, Dr. Quarfordt earned a Bachelor of Art’s degree in Biochemistry from the University of Colorado and a Master of Science degree in Cellular Biology from East Carolina University.
Dr. Quarfordt is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Vascular and Interventional Radiology. He holds memberships in the Radiology Society of North America (RSNA), American Roentgen Ray Society (ARRS), Society of Neuro-interventional Radiology, Society of Interventional Radiology (SIR), and Tennessee Medical Association (TMA).
In his free time, Dr Quarfordt loves to spend time with his wife, three daughters, and extended family. He enjoys traveling and being outdoors.
Many people do not know that radiology has subspecialties. We've worked very hard to find the best radiologists in each subspecialty so that only the most qualified radiologist reads a patient's exam. We also invest in our radiologists to keep them educated and trained in the newest imaging technology available.
Dr. Joseph Oros is a board-certified, fellowship-trained radiologist specializing in Diagnostic and Pediatric Radiology. Dr. Oros earned his medical degree from the University of Tennessee College of Medicine. He completed his residency in Diagnostic Radiology at Baylor University Medical Center and subsequent fellowship in Pediatric Radiology at Vanderbilt University School of Medicine. Prior to medical school, Dr. Oros earned a Bachelor of Science degree in Microbiology from the University of Tennessee.
Dr. Oros is board certified by the American Board of Radiology. He holds memberships in the Society of Pediatric Radiology (SPR) and Tennessee Medical Association (TMA).
In his free time, Dr. Oros enjoys rock climbing, hiking & camping, and golfing. He is an extremely novice mandolin player and is a fan of the Tennessee Volunteers and the Memphis Grizzlies.
Dr. Kevin Crawford is a board-certified, fellowship-trained physician specializing in Diagnostic Radiology. Dr. Crawford earned his medical degree from Loma Linda University School of Medicine in Loma Linda, CA, graduating in 2014. He finished his internship at the University of Tennessee College of Medicine at Chattanooga in 2015. Following that, he completed his diagnostic radiology residency and subsequent fellowship in breast imaging at Emory University School of Medicine, Department of Imaging Sciences in Atlanta, GA in 2020.
Dr. Crawford is board certified by the American Board of Radiology. He holds a membership with the Tennessee Medical Association (TMA). His clinical interests include breast and body imaging.
In his free time, Dr. Crawford enjoys spending time with his wife and two daughters, including cooking, taking long walks, exploring big cities, and finding local coffee shops.
Dr. Justin Buchanan is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Buchanan earned his medical degree from Temple University School of Medicine Alpha Omega Alpha Medical Honor Society. He completed his residency in Diagnostic Radiology at Vanderbilt University School of Medicine. Prior to medical school, Dr. Buchanan earned a Bachelor of Science degree in Biology from the University of North Carolina Summa Cum Laude.
Dr. Buchanan is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Roentgen Ray Society (ARRS), and Tennessee Medical Association (TMA).
In his free time, Dr Buchanan enjoys spending time with his wife and three labradoodles, running, mountain biking, triathlons, golf, reading, live music, and finding great restaurants.
Dr. Nicolas Appleton is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Appleton earned his medical degree from the University of Tennessee Health Science Center College of Medicine. He completed his residency in Diagnostic Radiology at the San Antonio Military Medical Center and served in the US Air Force as the Medical Director of the Department of Radiology for 11 years. Prior to medical school, Dr. Appleton earned a Bachelor of Science degree in Chemistry and Biology from the University of Tennessee.
Dr. Appleton is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), and Tennessee Medical Association (TMA).
In his free time, Dr Appleton enjoys being a meme lord and spending time with his wife and children.
Dr. Patrick Henderson is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Henderson earned his medical degree from the University of South Carolina College of Medicine. He completed his residency in Diagnostic Radiology at the Augusta University College of Medicine and subsequent fellowship in Body Imaging at the University of California School of Medicine. Prior to medical school, Dr. Henderson earned a Bachelor of Science degree from the University of South Carolina.
Dr. Henderson is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Institute for Ultrasound in Medicine, Tennessee Radiological Society and Tennessee Medical Association (TMA).
When not at work, Dr. Henderson enjoys spending free time with his wonderful wife and 3 daughters, including annual Disney trips, traveling for sporting events, and playing golf.
Dr. Jared Burlison is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Burlison earned his medical degree from Vanderbilt University School of Medicine. He completed his residency in Diagnostic Radiology at the University of New Mexico Health Science Center and subsequent fellowship in Nuclear Medicine at Vanderbilt University. Prior to medical school, Dr. Burlison earned a Bachelor of Science degree in Biology and Chemistry at the University of Illinois and a Ph. D in Molecular Physiology and Biophysics at Vanderbilt University Medical Center.
Dr. Burlison is board certified by both the American Board of Radiology and The American Board of Nuclear Medicine. He holds memberships in the American College of Radiology (ACR), American Roentgen Ray Society (ARRS), Society of Nuclear Medicine and Molecular Imaging, and Tennessee Medical Association (TMA).
In his free time, Dr. Burlison enjoys traveling, snow skiing, scuba diving and boating/water sports.
Dr. Jose Barriocanal is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology Dr. Barriocanal earned his medical degree from Temple University School of Medicine. He completed his residency in Diagnostic Radiology at Temple University and subsequent fellowship in Nuclear Medicine and Pet-CT at Johns Hopkins University. Prior to medical school, Dr. Barriocanal earned a Bachelor of Science degree in Chemistry at Georgetown University and a Ph.D in Chemistry at the University of Delaware.
Dr. Barriocanal is board certified by both the American Board of Radiology and The American Board of Nuclear Medicine. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), Society of Nuclear Medicine, and Tennessee Medical Association (TMA).
In his free time, Dr. Barriocanal enjoys traveling, soccer, and photography. He is fluent in Spanish, basic Portuguese and German.
Dr. Andrew Hill is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Hill earned his medical degree from the Medical College of Georgia. He completed his residency in Diagnostic Radiology at the Brigham and Women’s Hospital/Harvard Medical School and subsequent fellowship in Breast Imaging and Intervention at the Brigham and Women’s Hospital/Harvard Medical School and in Musculoskeletal Imaging and Intervention at the University of Virginia School of Medicine. Prior to medical school, Dr. Hill earned a Bachelor of Arts, Neuroscience from Vanderbilt University.
Dr. Hill is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Roentgen Ray Society (ARRS), Society of Skeletal Radiology, Tennessee Radiological Society, and Tennessee Medical Association (TMA).
In his free time, Dr. Hill enjoys history, weightlifting and golfing.
Dr. Harigovinda Challa is a board-certified, fellowship-trained radiologist specializing in Diagnostic and Pediatric Radiology. Dr. Challa earned his medical degree from Rangaraya Medical College (India). He completed his residency in Diagnostic Radiology at Government General Hospital (India) Nizam's Institute of Medical Sciences and subsequent fellowship in Emergency Radiology, Pediatric Radiology and Neuroradiology at the University of Washington School of Medicine. Prior to medical school, Dr. Challa earned a Bachelor of Science degree in Biology, Physics & Chemistry at Jagarlamudi Kuppuswamy Choudary College (India).
Dr. Challa is board certified by the American Board of Radiology with Certificates of Added Qualifications (CAQ) in both Neuroradiology and Pediatric Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Society of Neuroradiology, Society for Pediatric Radiology, and Tennessee Medical Association (TMA).
In his free time, Dr. Challa enjoys reading and spending time with his wife and children.
Dr. Jason Smith is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Smith earned his medical degree from Vanderbilt University School of Medicine. He completed his residency in Diagnostic Radiology at the University of Texas Southwestern Medical Center and subsequent fellowship in Diagnostic Neuroradiology at the University of Washington School of Medicine. Prior to medical school, Dr. Smith earned a Bachelor of Science degree in Molecular and Cellular Biology from Vanderbilt University College of Arts and Science.
Dr. Smith is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American College of Radiology (ACR), American Society of Neuroradiology, American Society of Emergency Radiology, American Medical Association and Tennessee Medical Association (TMA).
In his free time, Dr. Smith enjoys raising his three boys, hiking, exploring the Southeast, landscaping, technology/gaming, and reading.
Dr. Samuel Porter is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Porter earned his medical degree from the University of Tennessee College of Medicine. He completed his residency Diagnostic Radiology at the University of Tennessee College of Medicine and subsequent fellowship in Diagnostic Neuroradiology at Emory University School of Medicine. Prior to medical school, Dr. Porter earned a Bachelor of Science degree in Biochemistry and Cellular and Molecular Biology from the University of Tennessee.
Dr. Porter is board certified by the American Board of Radiology. He holds memberships in the Radiology Society of North America (RSNA), American Society of Neuroradiology, American Society of Head and Neck Radiology, American Roentgen Ray Society (ARRS), Tennessee Radiological Society and Tennessee Medical Association (TMA).
His clinical interests include collaborating with other neuroscience and head/neck specialists.
In his free time, Dr. Porter enjoys traveling with his family, hiking, fishing, and playing tennis.
Dr. John Allred is a board-certified, fellowship-trained radiologist specializing in Diagnostic Radiology. Dr. Allred earned his medical degree from the University of Alabama School of Medicine. He completed his residency in Diagnostic Radiology at the University of Minnesota and subsequent fellowship in Neuroradiology at Vanderbilt University. Prior to medical school, Dr. Allred earned a Bachelor of Science degree in Biology and Chemistry from the University of Alabama at Birmingham (UAB).
Dr. John Allred is board certified by the American Board of Radiology with a Certificate of Added Qualification (CAQ) in Neuroradiology. He holds memberships in the American College of Radiology (ACR), Radiological Society of North America (RSNA), American Society of Neuroradiology, American Roentgen Ray Society (ARRS), Society of Nuclear Medicine and Molecular Imaging, and Tennessee Medical Association (TMA).
In his free time, Dr. Allred enjoys traveling with his wife and children, going hiking, and playing both golf and poker.
Interested in joining our growing team? If you’d enjoy working alongside rigorous and collaborative radiology professionals in the southeast who improve patient outcomes, take a look at our open positions.
