Our Radiologists

Over 60 years experience.


About Our Radiologists


PrimeImaging features top radiologists in the Chattanooga and North Georgia area. Like other medical specialists, radiologists complete four years of medical school, followed by at least four years in a residency program. Most of our physicians went even further and worked in an additional fellowship program. All are board-certified.

Our radiologists have 10+ years of experience in at least one of these fields: vascular and interventional radiology, musculoskeletal imaging, nuclear medicine, positron emission tomography, diagnostic radiology, and neuroradiology. 

Joseph Busch, M.D.

Dr. Joseph Busch co-founded PrimeImaging, then Diagnostic Radiology Consultants, P.A., in 1992 to carry out his dream of the running a first-rate radiology practice in the Chattanooga and North Georgia areas. Born in Louisiana but raised in Tennessee, Dr. Busch completed his undergraduate at UT Knoxville and his medical doctorate and residency in Diagnostic Radiology at UT, Memphis.

Dr. Busch served his country as a general medical officer in the USPHS at the Merchant Marine facilities for two years during the Vietnam War. Following this, he served in the Tennessee National Guard M.A.S.H. unit for an additional two years.

Today, in addition to running his practice, Dr. Busch enjoys traveling as part of the International Prostate MRI Working Group. One of his public speaking highlights was as the keynote speaker at the Stanford University Molecular Symposium in 2009.

Dr. Busch has also written for renowned radiology publications and serves various professional organizations and associations, including as the past president of Chattanooga Regional Oncology Association and as the clinical advisor for A.P.S. Alliance and Sunhealth Alliance Imaging Advisory Committee.

James Busch, M.D.

Following in his father’s footsteps, Dr. James Busch developed a passion for the medical field early on. He earned his undergraduate degree from Millsaps College in Jackson, Mississippi and his medical degree at UT Memphis where he was inducted into the honor medical society, Alpha Omega Alpha. He then completed his Diagnostic Radiology residency and fellowships at the world-renowned Harvard Medical School.

Dr Busch’s passion in radiology is providing state-of -the-art patient care with the best technology. One area of Dr Busch’s special training includes radiology informatics where he led the initiative for Diagnostic Radiology Consultants (DRC) to be the first in the world to implement a comprehensive radiology interpretation software suite soon after moving to Chattanooga in 2004. With his love of soccer, he also gravitated towards specialized musculoskeletal training. He continues to enjoy providing that skill set to Prime Imaging and the sports medicine community of greater Chattanooga. His fellowship in Vascular and Interventional radiology also continues to drive his desire to help patients with cancer by providing minimally invasive options to treat or diagnose. Dr Busch was one of the pioneers of thermal ablation used to treat and cure cancers in patients who are not eligible for traditional surgical options.

Scott Kemmerer, M.D.

Scott Kemmerer, MD, is originally from Richmond, Virginia. He discovered the Chattanooga area while attending Southern Adventist University for his undergraduate degree in Biology. He attended medical school at Loma Linda University School of Medicine in California, graduated as a member of Alpha Omega Alpha and served as class president during his junior year. He received the Comstock Award for the most outstanding medical student by the Department of Internal Medicine during his senior year. 

After completing his internship in internal medicine and residency in Diagnostic Radiology at Loma Linda University, Dr. Kemmerer completed fellowships in abdominal imaging at Shands Teaching Hospital at the Univerity of Florida as a clinical professor, then another in vascular and interventional radiology back at Loma Linda University. He then transitioned to an assistant professor and staff radiologist in the Department of Radiology where he mentored radiology residents primarily in the vascular and interventional, abdominal CT, ultrasound, and MRI departments. After realizing he enjoyed practicing radiology more than teaching it, he returned to Chattanooga in 2009 and joined PrimeImaging.

Andrew Kreek, M.D.

Dr. Andrew Kreek is PrimeImaging’s neuroradiology expert. He graduated with a dual degree in Biochemistry and Business Administration from Albright College in Pennsylvania. He then went on to finish his medical doctorate from Temple University School of Medicine and his residency in Diagnostic Radiology at the Medical University of South Carolina. He specializes in neuroradiology and head and neck imaging during his fellowship at the University of Alabama.

He has been part of the PrimeImaging team for over a decade. Dr. Kreek’s professional affiliations include the American College of Radiology and the Radiological Society of North America. He and his wife, Jennifer, have three children.

Garth McPherson, M.D.

Growing up in a home with two doctors for parents, Dr. Garth McPherson learned first-hand what it means to serve patients and the community. He graduated with honors from Virginia Tech and the Medical College of Virginia where he was awarded membership to the honor medical society, Alpha Omega Alpha. He studied Radiology at the University of Alabama at Birmingham under the world-famous chest radiographer, Dr. Robert Fraser.

Dr. McPherson is the medical director of PrimeImaging and is in charge of PET/CT. He and his wife, Joyce, have nine children. He volunteers in medical ministry in the community and enjoys gardening, ballroom dancing, and country music.

James Morrow, M.D.

Dr. James Morrow lived throughout Tennessee before settling down in the Chattanooga area. He completed his undergraduate at David Lipscomb University in Nashville and his medical degree at James H. Quillen College of Medicine in Johnson City where he was inducted into the honor medical society, Alpha Omega Alpha. 

He received specialized training in Interventional Radiology at Medical College of Wisconsin in Milwaukee. He serves as one of PrimeImaging’s authority in vascular and interventional radiology.

Dr. Morrow is blessed with his wife, Tracy, and their two children.

Lawrence Samuels, M.D.

Dr. Lawrence Samuels is one of PrimeImaging’s experts on musculoskeletal radiology and breast imaging. He earned a degree in Engineering from Duke University before attending medical school at Wake Forest University. There he was a member of the honor medical society, Alpha Omega Alpha, and completed a one year MRI fellowship.

He served as an Assistant Professor of Musculoskeletal Radiology at the University of North Carolina in Chapel Hill before joining the PrimeImaging’s team. Dr. Samuels’ professional affiliations include the American College of Radiology, Radiological Society of North America, Society of Skeletal Radiology, and the Society for Imaging Informatics in Medicine (SIIM).