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Dr. Manuel F. Mas, MD

Dr. Mas 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 Texas 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 UTHealth 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.

Education and Training


University of Texas Health Science Center, Brain Injury Medicine, Houston, Texas, 2015-2016


University of Puerto Rico, School of Medicine, Physical Medicine and Rehabilitation, San, Juan, Puerto Rico, 2011-2015

Doctor of Medicine

University of Puerto Rico, School of Medicine, San Juan, Puerto Rico, 2006-2011

Bachelors of Science

University of Puerto Rico, Rio Piedras Campus, in General Sciences, Magna Cum laude, San Juan, Puerto Rico, 2003-2006

Areas of Interest

Clinical Interests

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

Research Interest


April 2016

Accepted for Publication in Journal of Neuromuscular Diseases
“Prevalence and Genetic Profile of Duchene and Becker Muscular Dystrophy in Puerto Rico"

December 2015

Capgras Syndrome and Phantom Vest Following Traumatic Brain Injury

Accepted for Publication in The Journal of Neuropsychiatry and Clinical Neurosciences

December 2015

“Limb Girdle Muscular Dystrophy Type 2A Resulting From Heterozygous C479G Transversion Mutation in the Calpain-3 Gene”

Journal of Clinical Neuromuscular Disease: December 2015 - Volume 17 - Issue 2 - p 59–62.

April 2015

“Epidemiology of Volleyball Related Injuries in the Young Athlete”
Int J Sports Exerc Med 2015, 1:1

August 2014

“Spontaneous Bilateral Vertebral Artery Dissection During a Basketball Game: A Case Report”.

Sports Health: A Multidisciplinary Approach published online before print. August 21, 2014, doi:10.1177/1941738114547347


Ramos E, Sepulveda F, Mas M. Adult and adolescent onset muscular dystrophies. PM&R Knowledge Now/American Academy of Physical Medicine & Rehabilitation. Published 8/30/13.