John T. Johnston, MD

Diagnostic Radiologist

Dr. John T. Johnston is a Diagnostic Radiologist in Chattanooga, TN with special training and skill in diagnosing diseases and injuries with imaging technology. As a Diagnostic Radiologist, John T. Johnston, MD performs imaging with x-rays, ultrasounds, CT scans, or radiation in order to diagnose disorders or dysfunctions in tissues and bones. Diagnostic Radiology is a field of medicine that applies imaging technology to diagnose disease and dysfunction. Significant diseases and conditions treated by Diagnostic Radiologists include bone fractures, bronchitis, heart disease, kidney stones, cirrhosis, and benign or cancerous tumors. Medical tests, procedures and therapies provided by Diagnostic Radiologists include x-rays, magnetic resonance imaging (MRI) tests, computed tomography (CT) scans, ultrasounds, mammographies, fluoroscopies, nuclear stress tests, positron emission tomographies (PET), and bone density scans (DEXA).

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

• BlueCross BlueShield of Tennessee

• Cigna Healthcare [Cigna Health and Life Insurance Company]

• Medicaid

• Medicare

• TennCare [State of Tennessee]

• UnitedHealthcare Insurance Company