Our Providers

Physician | The Houston Institute of Neurology for Kids

Shaun S. Varghese, M.D.


Dr. Varghese grew up in Dallas, Texas where he always had an interest in science and sports. He attended college at Austin College in Sherman, TX where he decided to pursue a career in business administration while taking pre-med courses. He graduated in 2004 with a Bachelor of Arts and was also accepted into medical school at The University of Texas Medical School at Houston.

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Physician | The Houston Institute of Neurology for Kids

Cristina R. Marchesano, M.D.


Dr. Cristina Marchesano is a board certified pediatrician who has been practicing since 2012. Dr. Marchesano attended Houston Baptist University for her undergraduate work and medical school at the University of Texas Medical School at Houston. She completed her pediatric residency training at the University of Texas Medical School at Houston in collaboration with Memorial Hermann Children's Hospital and was Chief Resident of the Pediatric Residency Program.

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Physician | The Houston Institute of Neurology for Kids

Jennifer E. Martin, CPNP-PC


Jennifer Martin is a neurologically trained certified pediatric nurse practitioner with special interest in concussion, headache, epilepsy and autism who has been practicing since 2011. She attended the University of Texas Health & Science Center in the Houston Medical Center for nursing school and nurse practitioner school, and is a member of the Child Neurology Society. She has experience in pediatric primary care and pediatric urgent care as a nurse practitioner. Prior to that, she worked as a nurse in a critical care unit at Children’s Memorial Hermann Hospital.

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Physician | The Houston Institute of Neurology for Kids

Asra Akbar, M.D.


Dr. Akbar obtained her medical degree from Dow Medical College, Karachi in 2004. She completed her pediatric residency at St. Louis University in 2010 and her child neurology residency at UT Southwestern Medical Center and Children's Medical Center in Dallas in 2013. She was a chief resident for the child neurology residency program at UTSW and graduated with chief resident and nursing awards of excellence.

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Physician | The Houston Institute of Neurology for Kids

Tammy DeLaGarza, FNP-C


Tammy DeLaGarza is a certified family nurse practitioner with a BS in Nursing, RN certification, MS in Nursing Education, and an MS in Health Care Management. She has been practicing as an FNP specializing in pediatric neurology and epilepsy since 2012. She received her BSN and her post-masters in nursing/FNP from the University of Texas Health Science Center in Houston.

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Physician | The Houston Institute of Neurology for Kids

Mark A. Barros, M.D.


Dr. Barros is a native of San Antonio, TX. He graduated from the University of Texas at Austin in 2009, with a Bachelor of Science degree in Nutritional Sciences. Hook em’ Horns! He received his medical degree from The University of Texas Medical School at Houston in 2013. He completed his pediatric residency at the Penn State Milton S. Hershey Medical Center in Hershey, Pennsylvania and then completed one year of additional work within the Department of Pediatric Development and Rehabilitation.

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Physician | The Houston Institute of Neurology for Kids

Michelle E. Nwosu M.D.


Dr. Nwosu worked on Pediatric Neurology research at Indiana University, Indiana and then subsequently completed a series of post-graduate trainings at the Medical College of Wisconsin including a two year General Pediatrics residency, three year Child Neurology Fellowship, and one year Clinical Neurophysiology Fellowship.

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