Medical Physics consulting services in Diagnostic Radiology, including Nuclear Medicine. We offer our services to hospitals and radiology image cente Founded in 1995, TPA is now regarded as a premier Medical Physics consulting services in Diagnostic Radiology and Medical Imaging in the New York Tri-State area. We have over two decades of experience developing personalized Quality Assurance/Quality Control and Radiation Safety programs to meet our clients needs and objectives.. TPA has developed a close relationship with regulatory agencies, which assures that our clients are always kept up-to-date on the ever change regulatory world. We also continue to uphold a flawless performance record. Our clients praise our attention to detail, professionalism, and continued effort to exceed expectations.