George Janik, Donald Johnson, and Sherye Horner work in close association with each other to deliver professional medical physics services 24 hours a day. Our consultants establish working relationships with physicians, technologists, and hospital administrators to provide individual attention to each client. Our client base is large and we supply our own equipment and calibrations, which enables a fee structure that is economically competitive with hospital based physicists.

George G. Janik, M.S.

Mr. Janik received a Master of Science degree in Radiology Physics from UTA and the University of Texas Health Sciences Center. Mr. Janik is certified by the American Board of Radiology in Radiological Physics. He is licensed by the Texas Board of Licensure for Professional Medical Physicists and is registered in Texas to provide calibration and consulting services. Mr. Janik specializes in Radiation Oncology, Diagnostic Radiological Physics, Medical Nuclear Physics, Radiation Safety and Mammography.

Donald A. Johnson, M.S.

Mr. Johnson received a Master of Science degree in Radiological Physics from UTA and the University of Texas Health Sciences Center. Mr. Johnson is certified by the American Board of Radiology in Radiological Physics and the American Board of Medical Physics in Radiation Oncology Physics. He is licensed by the Texas Board of Licensure for Professional Medical Physicists and is registered in Texas and Arkansas to provide calibration and consulting services. Mr. Johnson specializes in Radiation Oncology, Diagnostic Radiological Physics, Medical Nuclear Physics, Radiation Safety, and Mammography.

Sherye D. Horner, PH.D.

Dr. Horner received a Master of Science degree in Radiological Physics from UTA and the University of Texas Health Sciences Center, where she later earned a Ph.D. in Radiological Sciences. She is certified by the American Board of Radiology in Diagnostic and Medical Nuclear Physics, and licensed by the Texas Board of Licensure for Professional Medical Physicists. She is registered in Texas to provide calibration and consulting services. Dr. Horner specializes in Diagnostic Radiological Physics, Nuclear Medical Physics, Radiation Safety and Mammography.