Tanya Milagros Martinez-Fernandez, MD $$

Pediatric Pulmonologist/Sleep Medicine

Associate Professor at UT Southwestern Medical Center

Languages Spoken:
English Spanish


UT Southwestern Pediatric Group

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Tanya Martinez-Fernandez, M.D., is a pediatric pulmonologist at Children's Health℠. Dr. Martinez-Fernandez earned her medical degree at the University of Puerto Rico School of Medicine, where she also completed her internship and residency in pediatrics and was accepted into the Alpha Omega Alpha medical honor society. 

Dr. Martinez-Fernandez completed two fellowships in pulmonology at the Indiana School of Mededicine - Riley Hospital for Children.

Her specialty areas include pediatric pulmonology and pediatric sleep and breathing disorders.

Dr. Martinez-Fernandez is board-certified in sleep medicine, pediatric pulmonology and pediatrics by the American Board of Pediatrics. She is a member of the American Academy of Sleep Medicine and American Thoracic Society.

She has been on the D Magazine list for Bedst Pediatric Specialists/Doctors in Dallas. When she’s not at work, Dr. Martinez Fernandez enjoys biking, hiking, and traveling.

Education and Training

Medical School
University of Puerto Rico School of Medicine (1997)
University of Puerto Rico School of Medicine - GME (1998), Pediatrics
University of Puerto Rico School of Medicine - GME (2000), Pediatrics
Indiana University - School of Medicine (2003), Pediatric Pulmonary Diseases
Board Certification
American Board of Pediatrics(Sleep Medicine),
American Board of Pediatrics/Pulmonology
  • Research Interests

    • Severe Asthma
    • Pulmonary Complications of Down Syndrome
    • Sleep Medicine
  • Publications

    • Mechanical effects of obesity on central and peripheral airway resistance in nonasthmatic early pubescent children. Wilhite DP, Bhammar DM, Martinez-Fernandez T, Babb TG. Pediatr Pulmonol. 2022 Dec;57(12):2937-2945. doi: 10.1002/ppul.26111. Epub 2022 Aug 30. PMID: 35949183
    • Inhaled albuterol increases estimated ventilatory capacity in nonasthmatic children without and with obesity. Wilhite DP, Bhammar DM, Balmain BN, Martinez-Fernandez T, Babb TG. Respir Physiol Neurobiol. 2021 Mar;285:103597. doi: 10.1016/j.resp.2020.103597. Epub 2020 Dec 7. PMID: 33301965 
    • Measurement of single breath-hold carbon monoxide diffusing capacity in healthy infants and toddlers
      Castillo A, Llapur CJ, Martinez T, Kisling J, Williams-Nkomo T, Coates C, Tepper RS Pediatr Pulmonol June 2006 41 (6) 544-50
    • High Resolution Computed Tomography Imaging of Airway Disease in Infants with Cystic Fibrosis
      Martinez TM, Llapur CJ,Williams TH, Coates C, Gunderman R, Cohen MD, Howenstine MS, Saba O, Coxson HO, Tepper RS Am J Respir Crit Care Med November 2005 172 (9) 1133-8
    • Parental smoking and airway reactivity in healthy infants
      Tepper RS, Williams-Nkomo T, Martinez T, Kisling J, Coates C, Daggy J Am J Respir Crit Care MedJanuary 2005 171 (1) 78-82
    • Assessment of exhaled nitric oxide kinetics in healthy infants
      Martinez, T., Weist, A., Williams, T., Clem, C., Silkoff, P., Tepper, RS J Appl Physiol June 2003 94 (6) 2384-90
  • Professional Activities

    • American Academy of Sleep Medicine
    • American Thoracic Society
  • Awards and Honors

    • Best Doctor, 2013-2014, 2018-2023, D Magazine
    • Recipient, National Hispanic Medical Association Leadership Fellowship 2022, National Hispanic Medical Association
    • Best Pediatric Specialist 2020-2021, D Magazine
    • Distinguished Resident Award 2000, University of Puerto Rico School of Medicine
    • Janet M. Glasgow Memorial Award 1997, American Medical Women’s Association/University of Puerto Rico School of Medicine
    • Alpha Omega Alpha Honor Medical Society 1996, University of Puerto Rico School of Medicine

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