Our Team

Dr. Tony C. Toppins, MD

Radiation Safety Officer and Supervising Physician

Dr. Tony C. Toppins is affiliated with LifeSciences Imaging as a Radiation SafetyOfficer and Supervising Physician. Dr. Toppins earned his medical degree from the University of Oklahoma College of Medicine; completed his residency in diagnostic radiology at Baylor University Medical Center in Dallas, TX, and completed his fellowship in MSK at University of California San Diego.

Dr. Luke Chambless, MD

Radiation Safety Officer and Supervising Physician

Dr. Luke Chambless is affiliated with LifeSciences Imaging as a Radiation Safety Officer and Supervising Physician. Dr. Chambless earned his medical degree from the University of Texas Health Science Center at San Antonio; completed his residency in diagnostic radiology at Texas A&M University Health Sciences Center Scott and White Memorial Hospital in Temple, TX, and completed his fellowship in Abdominal Imaging at Duke University.

Dr. Stefanie Velgos, Ph.D., M.Sc.

Vice President & Clinical Director

Dr. Stefanie Velgos is affiliated with LifeSciences Imaging as a Vice President & Clinical Director. She completed her M.Sc in Molecular Neurosciences and Ph.D. in Clinical Translational Science from the Mayo Clinic Graduate School of Biomedical Sciences.