Dr. Hastings grew up in west Texas and after obtaining Bachelors and Masters degrees in Physics, he attended UT Southwestern Medical School.  Due to his desire to become an astronaut, he pursued the ABIM research pathway at UTSW for Internal Medicine/ Cardiology with Dr. Benjamin Levine as his mentor.  His research during this time was funded by the National Space and Biomedical Research Institute (NSBRI) and AHA and focused on human exercise physiology in regards to adaptations to aging and a sedentary lifestyle. Dr. Hastings completed his cardiology fellowship in 2010, became Cardiology and Echocardiography board certified, and subsequently joined the Dallas VA Health Care System as the Director of Heart Failure Services.   His current specializations are in heart failure, imaging (advanced echocardiography), rehabilitation, exercise testing.  In running the newly formed Cardiopulmonary Exercise Testing laboratory at the Dallas VA he is able to bring these specialties together.  


Texas Tech University (1997), Physics
Graduate School
Texas Tech University (1999), Physics
Medical School
UT Southwestern Medical Center (2003), Medicine

Research Interest

  • Astronaut physiology (arrhythmias in space, prevention of atrophy/deconditioning)
  • Atrial fibrillation in athletes
  • Heart failure (CRT, modification of metabolism, diastolic dysfunction)
  • Peripheral arterial disease and exercise

Honors & Awards

  • Distinguished Alumnus
    Texas Tech University, Physics Department (2011)
  • First Place Fellows Clinical Section
    Northwestern Young Investigator's Forum (2010)
  • JoAnn McWhorter Award
    Cardiology peer nominated (2010)
  • First Place, Clinical Section
    UT Southwestern Research Symposium (2009)
  • First Place, Clinical Section
    UT Southwestern Research Symposium (2008)
  • Postdoctoral Fellowship Award
    American Heart Association, Outstanding Applicant Award (2005)

Professional Associations/Affiliations

  • American College of Cardiology (2005)
  • American College of Sports Medicine (2005)
  • American Heart Association (2005)