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John Floyd | UT Health San Antonio

Contact

210-450-9060

floydj@uthscsa.edu

Departments & Divisions

Institutes & Centers

John R Floyd, M.D.

Associate Professor

Chairman

Dr. John Floyd, Associate Professor for the Department of Neurosurgery at the Long School of Medicine at UT Health San Antonio, began his medical career in high school after obtaining early acceptance to the University of Alabama School of Medicine at the age of 18. Prior to matriculating, Dr. Floyd finished his undergraduate degree, graduating summa cum laude. He studied public health policy and clinical trial design at the University of Adelaide, South Australia on a rotary international scholarship.

Dr. Floyd’s surgical training began at the prestigious Vanderbilt University Medical Center in Nashville, Tennessee, where he completed an internship in general surgery. Subsequently, he finished his neurosurgical training from the department of neurological surgery at Vanderbilt University Medical Center. Dr. Floyd has also completed a fellowship in neurosurgical oncology and skull base surgery at the University of Texas M.D. Anderson Cancer Center.

Publications

Gruslova, A., Cavazos, D. A., Miller, J. R., Breitbart, E., Cohen, Y. C., Bangio, L., Yakov, N., Soundararajan, A., Floyd, J. R. & Brenner, A. J. VB-111: a novel anti-vascular therapeutic for glioblastoma multiforme. J. Neurooncol. 124(3):365-72 (2015). PMID: 26108658; PMCID: PMC4584173

 

 

  • Professional Background

    Education

    • 2008 - Clinical Fellowship - Neurosurgical Oncology and Skull Base Surgery - University of Texas, MD Anderson Cancer Center
    • 2007 - Residency - Neurological Surgery - Vanderbilt University Medical Center
    • 2005 - Postdoctoral Fellowship - Research Proteomics and Intrinsic Brain Tumors - Vanderbilt Brain Institute, Center for Molecular Neuroscience
    • 2001 - Internship - General Surgery - Vanderbilt University Medical Center
    • 2000 - MD - Medicine (Early Medical School Acceptance program, Magna Cum Laude, Alpha Omega Alpha Honor Medical Society, Alabama Merit Scholar, Madison County Merit Scholar) - University of Alabama School of Medicine
    • 1996 - DPL - Graduate Diploma of Public Health (Gradutaed with Distinction; Rotary International Ambassadorial Scholarship) - University of Adelaide
    • 1995 - BS - Biology (Summa Cum Laude, Oustanding Undergraduate Student in Biology, ODK National Leadership Honour Society, Golden Key International Honour Society) - University of Alabama at Birmingham

    Appointments

    • 6/2018 - Associate Professor with Tenure and Department Chair - UT Health San Antonio, Neurosurgery, San Antonio
    • 12/2017 - Associate Professor and Cross Appointment - UT Health San Antonio, Otolaryngology
    • 11/2017 - Associate Professor of Otolaryngology and Faculty Physician - UT Health San Antonio, Otolaryngology/Head and Neck Surgery, San Antionio
    • 4/2016 - Director of Residency Program and Residency Director - University of Texas Health Science Center at San Antonio, Neurosurgery, San Antonio
    • 4/2013 - Carl Raba Family Chair in Neuro-Oncology, Endowed Chair - University of Texas Health Science Center at San Antonio, Neurosurgery, San Antonio

  • Instruction & Training

    • 7/2018 - 6/2025, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2018 - 6/2025, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2018 - 6/2025, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 11/2017 - 6/2021, Individual Instruction
    • 7/2017 - 6/2024, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2017 - 6/2024, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2017 - 6/2024, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2016 - 6/2023, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2016 - 6/2023, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 9/2015 - 6/2020, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2015 - 6/2022, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2015 - 6/2022, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2014 - 6/2021, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2014 - 6/2021, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 7/2013 - 6/2020, Individual Instruction, UTHSCSA-Department of Neurosurgery
    • 6/2011 - Present, Surgical Anatomy and Approaches, Cadaveric Lab, University of Texas Health Science Center at San Antonio
    • 8/2009 - Present, Endocrine Pituitary Conference, University of Texas Health Science Center at San Antonio
    • 8/2008 - Present, Multidisciplinary Neuro Tumor Board Conference, The University of Texas Health Science Center at San Antonio
    • 8/2008 - Present, Pre-Operative Neurosurgical Conference, University of Texas Health Science Center at San Antonio
    • 8/2008 - Present, Quality Assurance Conference, University of Texas Health Science Center at San Antonio

  • Publications

      Journal Article

      1st Author - Wyatt Weinheimer
      2nd Author - Justin Rowley
      3rd Author - Philip Chen
      4th Author - Randal A. Otto
      5th Author - John Floyd. Oropharyngeal CSF Leak Secondary to Anterior Cervical Discectomy and Fusion Case Reports in Otolaryngology 2018 Jul;2018. Andrew Brenner
      Richard Zuniga
      Jessica D Sun
      John Floyd
      Charles P Hart
      Stew Kroll
      Lisa Fichtel
      David Cavazos
      Laura Caflisch
      Aleksandra Gruslova
      Shiliang Huang
      Yichu Liu
      Alessia Lodi
      Stefano Tiziani. Hypoxia Activated Evofosfamide for Treatment of Recurrent Bevacizumab-Refractory Glioblastoma: A phase I surgical study Neuro-Oncology 2018 Feb;20(9):1231-1239. Wallace DJ
      McGinity MJ
      Floyd JR. Bone flap salvage in acute surgical site infection after craniotomy for tumor resection Neurosurgical Review 2018 Feb;. McGinity MJ
      Michalek JE
      Rodriguez JS
      Floyd JR. Surgical evacuation of acute subdural hematoma in octogenarian: A ten-year experience from a single trauma center British Journal of Neurosurgery 2017 Dec;31(6):714-717. Floyd JR, McGinnity, M, McGinnity, J, Zhang, F. Implant Compositions for the Unidirectional Delivery of Anticancer Compounds to the Brain Drug Development and Industrial Pharmacy 2017 Sep;43(9):1421-1429. Fountzilas C, Chang K, Hernandez B, Michalek J, Crownover R, Floyd J, Mahalingam D. Clinical characteristics and tratment outcomes of patients with colorectal cancer who develop brain metastasis: a single institution experience J Gastrointest Oncol 2017 Feb;8(1):55-63. Narayanasamy G, Stathakis S, Gutierrez AN, Pappas E, Crownover R, Floyd JR, Papanikolaou N. A Systematic Analysis of 2 Monoisocentric Techniques for the Treatment of Multiple Brain Metastases Technol Cancer Res Treat 2016 Sep;:1-6. Brown AF, Fan H, Floyd JR, Henry JM, Higgins RA. Primary Central Nervous System Histiocytic Sarcoma Arising After Precursor B-Cell Acute Lymphoblastic Leukemia J Neuropathol Exp Neurol 2015 Dec;74(12):1120-1126. Gruslova A, , Miller JR, Cavazos DA, Breirbart E, Bangio L, Yakov N, Soundararajan,Floyd JR,Brenner AJ. VB-111 : a novel anti-vascular therapeutic for glioblastoma multiforme Journal of Neuro-Oncology 2015 Sep;124(3):365-372. Son C, Samples D, Brenner AJ, Floyd JR. Osteolytic calvarial lesions as initial presentation of latent neurosyphilis J Clin Neurosci 2015 May;22(5):909-910.

  • Clinical

    Board Certifications

    • American Board of Neurosurgery