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Dr. Callahan is on Doximity

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  • Office

    1635 North Loop W
    Houston, TX 77008
    Phone+1 713-867-2000

Education & Training

  • Carolinas Medical Center
    Carolinas Medical CenterResidency, Emergency Medicine, 2013 - 2016
  • Texas Tech University Health Sciences Center School of Medicine
    Texas Tech University Health Sciences Center School of MedicineClass of 2013

Certifications & Licensure

  • TX State Medical License
    TX State Medical License 2016 - 2026
  • NC State Medical License
    NC State Medical License 2013 - 2016
  • American Board of Emergency Medicine Emergency Medicine