Meet Our Doctors

This eleven-member group consists of board certified radiologists with subspecialty training in neuroradiology, interventional radiology, nuclear medicine, CT, ultrasound, MRI, mammography, and musculoskeletal imaging.

Cecil W. Cupp, III, MD

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Dr. Cecil W. Cupp, III is a 1975 graduate of Hendrix College in Conway, AR. and received his medical degree from the University of Arkansas Medical Center in 1979 and completed his internship at that institution in 1980. He finished his residency at the University of Tennessee in Memphis in 1983 and joined the practice that same year. A member of the Arkansas State Medical Society and the Garland County Medical Society, he has also served as a delegate to the American College of Radiology.

Mark S. Russell, MD

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Dr. Mark S. Russell is a 1973 graduate of Western Kentucky University in Bowling Green and received his medical degree from the University of Arkansas for Medical Sciences in 1985. After completing his internship and residency at UAMS, he joined the practice in 1989. He holds memberships in the Arkansas State Medical Society, the Garland County Medical Society, the American College of Radiology, the American Roentgen Ray Society, and the Radiologic Society of North America. In November 1998, he received his Certificate of Added Qualification in Vascular & Interventional Radiology.

Michael P. Hickman, MD

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After receiving his diploma from the University of Arkansas at Little Rock in 1982, Dr. Hickman completed the course of study for his medical degree at the University of Arkansas Medical Center in 1986. His residency was finished at the University of Tennessee in Memphis in 1990. He then completed a fellowship in vascular and interventional radiology in 1991. After practicing in Kinsport, TN for a short time, Dr. Hickman joined the group in 1992. His professional memberships include the American College of Radiology, the Arkansas State Medical Society, the Garland County Medical Society, the Radiological Society of North America, the Society of Minimally Invasive Therapy, and the Society for Cardiovascular and Interventional Radiology. Widely recognized for his knowledge in the field of vascular and interventional radiology, he is a frequent guest speaker and lecturer at medical seminars.

Mark B. Robbins, MD

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Dr. Mark B. Robbins is a 1982 graduate of the University of Arkansas in Fayetteville and received his medical degree from the University of Arkansas for Medical Sciences in 1987. Following his time at UAMS, he completed residency programs at St. Joseph's Hospital, Milwaukee, WI and the University of Arkansas for Medical Sciences in 1991. After completion of a fellowship in neuroradiology at UAMS, he joined Hot Springs Radiology Services in 1993, specializing in neuroradiology and magnetic resonance imaging. Professional memberships include the American College of Radiology, the Arkansas State Medical Society, the Garland County Medical Society, the Radiological Society of North America, and the American Society of Neuroradiology

Stephen P. Penor, MD

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Dr. Stephen P. Penor is a 1995 graduate of the University of Arkansas in Fayetteville and received his medical degree from the University of Arkansas for Medical Sciences in 1999 and completed his internship at that institution in 2000. He finished his residency at UAMS in 2004. He completed his fellowship in nuclear medicine at Emory University Hospital in Atlanta, Georgia in 2005 and joined the practice shortly thereafter. Professional memberships include the American College of Radiology, Arkansas State Medical Society, the Arkansas Chapter of the ACR, Radiologic Society of America and the Garland County Medical Society.

William W. Davenport, MD

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Dr. William W. Davenport is a 1995 undergraduate of Harding University. He received his medical degree from the University of Arkansas for Medical Sciences in 1999. After completing a five-year residency at the Medical University of South Carolina in Charleston, SC, he became board certified in diagnostic radiology. After an additional year of neuroradiology fellowship training at Jackson Memorial Hospital in Miami, FL, he joined Hot Springs Radiology Services.

He is a member of numerous radiology associations, including the American Society of Neuroradiology and the American Society of Spine Radiology. In November 2006, Dr. Davenport earned a Certificate of Added Qualification in Neuroradiology from the American Board of Radiology.

Lonnie B. Wright, MD

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Dr. Lonnie B. Wright is a 1995 graduate of the University of Arkansas in Fayetteville and received his medical degree from the University of Arkansas for Medical Sciences in 1999. Following a diagnostic radiology residency at UAMS in 2004 and a fellowship in interventional radiology at UAMS in 2005, Dr. Wright was employed as a physician and assistant professor at the University of Arkansas College of Medicine before joining the practice in 2006.

Dr. Wright holds memberships in the American Medical Association, American Roentgen Ray Society, Arkansas Medical Society, Radiology Society of North America, and the Society of Interventional Radiology.

Dr. Wright currently serves on the board of trustees for the Arkansas Medical Society.

R. Brian Owens, MD

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Dr. Brian Owens obtained his M.D. in 1999 from the University of Arkansas for Medical Sciences and went on to complete an internship in General Surgery in 2000. He did research in neuroradiology for UAMS from 2001 through 2002, and completed his residency in Radiology in 2006. A fellowship in Breast Imaging at Memorial Sloan-Kettering Cancer Center in New York was completed in 2006, followed by completion of a fellowship in breast imaging at UAMS in 2007.

Dr. Owens is board certified by the American Board of Radiology and holds memberships in the American College of Radiology, the Radiological Society of North America, the Society of Breast Imaging, the Arkansas Chapter of the ACR, the Arkansas Medical Society and the Garland County Medical Society.

Joining the group in March, 2008, Dr. Owens practices at St. Joseph's Mercy Health Center, NPMC, HSC Medical Center, Levi Hospital and Howard Memorial Hospital.

Kremer B. Nicholas, MD

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Dr. Kremer B. Nicholas is a 2000 graduate of the University of Arkansas at Fayetteville. He received his medical degree from the University of Arkansas for Medical Sciences in 2004. He subsequently completed a surgical internship, diagnostic radiology residency, and neuroradiology fellowship at the University of North Carolina at Chapel Hill. He received his board certification in diagnostic radiology in 2009 and a certificate of added qualification in neuroradiology in 2011 from the American Board of Radiology. Joining the practice in 2010, he is a member of the American Medical Association, Arkansas State Medical Society, the Garland County Medical Society and the American College of Radiology.

James R. McCarley, MD

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Dr. James R. McCarley is a 2000 Graduate of the University of Arkansas at Fayetteville. He received his medical degree in 2004 from the University of Arkansas for Medical Sciences. Dr. McCarley completed his radiology residency in 2009. After completing a vascular and interventional radiology fellowship at the University of Pennsylvania in 2010, Dr. McCarley joined Hot Springs Radiology. He is a member of the Society of Interventional Radiology, American College of Radiology, American Medical Association, Arkansas Medical Society and the Garland County Medical Society.

Shawn D. Marvin, MD

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Dr. Shawn D. Marvin graduated from the University of Central Arkansas in 2001. Following his time at UCA, Dr. Marvin received his medical degree from the University of Arkansas for Medical Sciences in 2005. After a general internship at UAMS, he completed his radiology residency there in 2010. Dr. Marvin completed a fellowship in musculoskeletal imaging at the University of Florida in Gainesville in 2011. Shortly after, he joined Hot Springs Radiology.

Services Offered

    Diagnostic Radiology
    Fluoroscopy
    Interventional Radiology
    Computed Tomography (CT)
    Ultrasound
    Magnetic Resonance Imaging (MRI)
    Nuclear Medicine