Manuel F. Mas, M.D., joins the medical staff at TIRR Memorial Hermann after completing his fellowship in Brain Injury Medicine at the University of Houston Health Sciences in Houston, Texas in July 2015.  He completed a residency in Physical Medicine and Rehabilitation at the University of Puerto Rico, School of Medicine in 2015. He received his medical degree in 2011 at the University of Puerto Rico, School of Medicine.

Dr. Mas is an assistant professor of physical medicine and rehabilitation at McGovern Medical School.  As an attending physician at TIRR, Dr. Mas’ primary focus is on the evaluation, treatment and management of patients admitted for inpatient rehabilitation after suffering a brain injury. This includes traumatic brain injury, anoxic brain injury, stroke, among others. He also follows concussion and mild traumatic brain injury patients in the outpatient setting at TIRR. Dr. Mas is also trained in spasticity management, including chemodenervation with onabotulinumtoxinA (Botox) and other neurotoxins, as well as intrathecal baclofen pump management. His clinical interests also include neurorehabilitation, musculoskeletal diagnosis, general rehabilitation and electrodiagnostic medicine. His research interests include concussion prognosis and treatment, spasticity management and disorders of consciousness. His hospital affiliations include TIRR/Memorial Hermann and Memorial Hermann Hospital-Texas Medical Center.   He is a member of the American Academy of Physical Medicine and Rehabilitation (AAPMR) and Association of Academic Physiatrists (AAP). He currently is part of the Program Committee of the AAP.

Dr. Mas also works and teachers PM&R resident physicians and medical students.  Outside of work, he is an avid follower of technology news, movies and sports.



University of Texas Health Science Center, Brain Injury Medicine, Houston, Texas, 2016
University of Puerto Rico, School of Medicine, Physical Medicine and Rehabilitation, San, Juan, Puerto Rico, 2015
Doctor of Medicine
University of Puerto Rico, School of Medicine, San Juan, Puerto Rico, 2011

Areas of Interests

Clinical Interests

  • Brain Injury Medicine
    • Anoxic Brain Injury
    • Traumatic Brain Injury
    • Stroke
    • Neurorehabilitation
  • Concussion
    • Return to Play (Sports)
    • Return to School/Work
    • Chronic Post-Concussive Symptoms Management
  • Musculoskeletal medicine
  • Electrodiagnostic medicine
  • General rehabilitation

Research Interests

  • Concussion Prognosis and Treatment
  • Spasticity Management
  • Disorders of Consciousness


Publication Information


  • Ramos E, Sepulveda F, Mas M. Adult and adolescent onset muscular dystrophies. PM&R Knowledge Now/American Academy of Physical Medicine & Rehabilitation—Adult-and-adolescent-onset-muscular-dystrophies—evaluation-and-diagnosis.aspx.  August 2013
  • Ramos E, Pardo S, Mas Rodríguez MF, Vélez J. “Limb Girdle Muscular Dystrophy Type 2A Resulting From Heterozygous C479G Transversion Mutation in the Calpain-3 Gene”. J Clin Neuromuscul Dis. 2015 Dec;17(2):59-62. doi: 10.1097/CND.0000000000000097.
  • Miranda GE, Mas M, Lopez D, Perez C, Micheo W (2015) Epidemiology of Volleyball Related Injuries in the Young Athlete. Int J Sports Exerc Med 1:005.
  • Mas RodriguezMF, Berrios RA, Ramos E. “Spontaneous Bilateral Vertebral Artery Dissection During a Basketball Game: A Case Report”. Sports Health. 2016 Jan-Feb;8(1):53-6. doi: 10.1177/1941738114547347.
  • Jones M, Byars JA, Mas-RodriguezM, Arciniegas DB. “Capgras Syndrome and Phantom Vest Following Traumatic Brain Injury”. J Neuropsychiatry Clin Neurosci. 2016 Summer;28(3):253-4. doi: 10.1176/appi.neuropsych.15120418.
  • Ramos E, Conde JG, Berrios RA, Pardo S, Gómez O, Mas Rodríguez MF.“Prevalence and Genetic Profile of Duchene and Becker Muscular Dystrophy in Puerto Rico” J Neuromuscul Dis. 2016 May 27;3(2):261-266.
  • Karri J, Mas M, Li S, Francisco G. “Practice Patterns for Spasticity Management with Phenol Neurolysis” J Rehabil Med 2017. Accepted for Publication.
  • Mas M, Li S, Francisco G “Centrally Mediated Late Motor Recovery After Botulinum Toxin Injection: A Review of Current Evidence” J Rehabil Med 2017. Accepted for Publication.