Faculty and Administrative Staff

Faculty

Edmundo Calleros-Macias, M.D.


  • Dr. Arvin and Beverly Robinson-Furman Family Endowed Chair
  • Associate Professor

 E-mail: jesus.calleros@ttep.edu

Younghoon Cho, M.D.


  • Assistant Professor
  • Cardiothoracic Imaging

 E-mail: younghoon.cho@ttep.edu

Jesus R. Diaz, M.D.


  • Associate Professor
  • Residency Program Director
  • Nuclear Medicine Imaging

 E-mail: jesus.diaz@ttep.edu

Dr. Diaz trained abroad as Nuclear Medicine physician in 2001 and completed training in Diagnostic Radiology and Body Imaging fellowship here at Texas Tech.  

He is board-certified with the American Board of Radiology since 2012. 

He has provided Emergency Radiology services since 2013.  

He currently is the Radiation Safety Officer for UMC and chairs the Radiation Safety Committee and serves as a member in the Patient Safety Council.  

He serves as Vice-Chair in the Credentials Committee and also serves as Vice-Chair in the Institutional Review Board for Texas Tech. 

He is the program director for the Diagnostic Radiology residency here at Texas Tech. 

His research focus is in gastric emptying with radionuclide techniques. 

His interests are in gastric emptying, DaTscan in movement disorders, MRI liver iron quantification, current and emerging radionuclide therapies. 

He has been involved with the Society of Nuclear Medicine and Molecular Imaging in developing appropriate use criteria in gastrointestinal transit. 

He served in the American Board of Radiology in the Nuclear Radiology Committee from 2018-2024. 

He is a trustee with the Southwestern Chapter of the Society of Nuclear Medicine and Molecular Imaging. 

He is a Senior Editor with the American College of Radiology RadExam for the Nuclear Radiology Committee. 

He is involved with the El Paso Public Health Department as advisor for radiation disaster preparedness. 

He participates jointly with Emergency Medicine in the simulation of contrast material reactions and radiation disaster.

Humera M. Chaudhary, M.D.


  • Assistant Professor
  • Program Director, Body Imaging Fellowship
  • Body Imaging

 E-mail: humera.chaudhary@ttep.edu

Eseosa A. Bazuaye-Ekwuyasi, M.D.


  • Assistant Professor
  • Fellowship Program Director
  • Women’s Imaging
  • Medical Student Education Director

 E-mail: ebazuaye@ttep.edu

Younis Alazzawi, M.D.


  • Clinical Assistant Professor
  • Interventional Radiology

Fabio Eduardo Fernandes Da Silva, M.D.


  • Assistant Professor
  • Neuroradiology

 E-mail: fabferna@ttep.edu

Melhem Ghaleb, M.D.


  • Clinical Associate Professor
  • Interventional Radiology

Taesun Han, M.D.


  • Assistant Professor
  • Musculoskeletal Imaging

 E-mail: taesun.han@ttep.edu

Nicholas Hardin, M.D.


  • General Radiology
  • Emergency Room

Shaked Laks, M.D.


  • Associate Professor
  • Body and Musculoskeletal Imaging

 E-mail: shaked.laks@ttep.edu

Chae Woon Lee, M.D.


  • Assistant Professor
  • Women's Imaging

 E-mail: chae-woon.lee@ttep.edu

Hae Won Lee, M.D.


  • Assistant Professor
  • Neuroradiology

 E-mail: hae.lee@ttep.edu

Andre Reis Malaman, M.D.


  • Assistant Professor
  • Neuroradiology

 E-mail: andre.malaman@ttep.edu

Alberto Maud, M.D.


  • Professor of Neurology and Clinical Professor of Radiology
  • Neurointervention

 E-mail: alberto.maud@ttep.edu

Chetan Moorthy, M.D.


  • Clinical Associate Professor
  • Pediatric Radiology, El Paso Children's Hospital

 E-mail: cmoorthy@elpasochildrens.org

Albert J. Moreno, M.D.


  • Clinical Associate Professor
  • Nuclear Medicine, WBAMC

Thomas J. O’Neill, M.D.


  • Associate Professor
  • Neuroradiology Imaging

 E-mail: thomas.oneill@ttep.edu

Alejandro Rodriguez Orozco, M.D.


  • Assistant Professor
  • Neuroradiology Imaging

 E-mail: rod43073@ttep.edu

Gustavo Rodriguez, M.D.


  • Professor of Neurology and Clinical Professor of Radiology

 E-mail: gustavo.j.rodriguez@ttep.edu

Steven A. Ross, M.D.


  • Professor of Neurology and Clinical Associate Professor
  • Pediatric Radiology, El Paso Children’s Hospital

 E-mail: aross@elpasochildrens.org

Agnieszka Solberg, M.D.


  • Clinical Assistant Professor
  • Interventional Radiology

Gethin Williams, M.D.


  • non-salaried teaching physician

 

Research Division

Hugo Sandoval, Ph.D.


  • Senior Research Associate
  • Human Brain Imaging

 E-mail: hugo.sandoval@ttep.edu

Neuroscientist with 28 years of experience applying structural and functional MRI to the study of human brain organization, disease, and recovery. For more than 20 years, pioneered neuroimaging research in El Paso, Texas, establishing sustained collaborations with leading national imaging centers and developing research programs spanning obesity and weight loss, stroke, Alzheimer’s disease, bipolar disorder, cyclic vomiting syndrome, and related neurological and psychiatric conditions. Expertise encompasses MRI/fMRI protocol development, image acquisition and analysis, translational research, IRB and research operations, presurgical functional mapping, scientific writing, and multidisciplinary collaboration. Current work focuses on brain changes following bariatric surgery and on language and motor network reorganization after stroke. 

AREAS OF EXPERTISE 

  • Structural MRI / fMRI 
  • Presurgical functional mapping 
  • Resting-state connectivity 
  • EEG / simultaneous EEG-fMRI 
  • Transcranial magnetic stimulation 
  • Clinical & translational research 
Published work

 

Administrative Staff

Sergio Garcia, M.B.A.


  • Senior Clinical Administrator of Radiology

 E-mail: sergio.garcia@ttep.edu

 Phone: 915-215-5606

Elena Miranda, M.Ed.


  • Associate Clinical Department Administrator

 E-mail: elena.miranda@ttep.edu

 Phone: 915-215-5739

Terri Brashear


  • Residency Program Coordinator

 E-mail: mterri.brashear@ttep.edu

 Phone: 915-215-5253

Crystal Samaniego


  • Medical Secretary

 E-mail: crsamani@ttep.edu

 Phone: 915-215-6564

Haven Medrano


  • Medical Secretary

 E-mail: haven.medrano@ttep.edu

 Phone: 915-215-6486

Amy Roman Baca


  • Medical Secretary

 E-mail: aromanba@ttep.edu

 Phone: 915-215-5017