Thomas J. O'Neill, M.D.
- American Board of Preventive Medicine – Public Health and General Preventive Medicine
- American Board of Radiology – Diagnostic Radiology
- American Board of Radiology – Neuroradiology
- Neuroradiology | University of Texas Southwestern Medical School | Dallas, TX
- Diagnostic Radiology | Texas Tech University Health Sciences Center El Paso | El Paso, TX
- Doctor of Medicine | University of Texas Health Sciences Center at Houston | Houston, TX