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Our Team

Clinical Director

Dr. ZoAnn Dreyer is Clinical Director of the Long-Term Survivor Clinic at Texas Children’s Cancer Center. Over 1,000 childhood cancer survivors are evaluated every one to two years for delayed effects of their prior cancer therapy. Survivors are patients who are more than five years from their…
Phone: 832-822-4209

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Hematology/Oncology

Shiley Aguilar is a Family Nurse Practitioner for the Texas Children’s Cancer and Hematology Centers. She has extensive experience in bone tumors and was a member of the Bone Tumor Program at Texas Children's Hospital for many years. Her passion for long-term survivorship has led her to become a…
Phone: 832-227-2630

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Dr. Rodrigo Erana is a physician at the Vannie Cook Children's Clinic in McAllen, TX. Dr. Rodrigo Erana is interested in childhood cancer in underdeveloped countries and childhood cancer epidemiology in the hispanic population. Dr. Erana is a member of the Childhood Cancer Epidemiology and…
Phone: 956-661-9840

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Dr. Michael Gleason was introduced to the world of pediatric cancer when he was diagnosed with lymphoma in high school. He was treated here at Texas Children’s Hospital on one of the research protocols that Texas Children’s Hospital and Baylor College of Medicine were offering. His personal…
Phone: 936-267-7444

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Dr. Maria Monica Gramatges is the Research Co-Director of the Long-Term Survivor Program at Texas Children’s Cancer and Hematology Center. In that role, she develops and facilitates local and national collaborative research that investigates the physical, medical, and psychosocial late effects of…
Phone: 832-824-4678

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Dr. Marc Horowitz is a pediatric hematologist-oncologist for the Texas Children’s Cancer Center. Dr. Horowitz is an experienced solid tumor clinician and investigator in the area of development of new therapies for childhood solid tumors including those of the brain, bone and soft-tissues. He has…
Phone: 832-822-4556

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Alicia Howell is a family nurse practitioner at Texas Children's Hospital Cancer Center. She has over 16 years experience working as a nurse and nurse practitioner. Her experience has been working with children and adults with cancer and blood disorders in both inpatient and outpatient settings.…
Phone: 832-822-4728

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Board Certifications American Board of Pediatrics American Board of Pediatrics – Hematology/Oncology American Board of Internal Medicine
Phone: 832-824-4163

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Dr. Kiranmye Reddy is a physician at the Texas Children’s Cancer and Hematology Centers. Dr. Reddy had two main areas of research during her fellowship training in pediatric hematology/oncology. She pursued clinical research focused on investigating the transfusion related complications of iron…
Phone: 832-824-4949

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Dr. Omar Shakeel completed his pediatric hematology/oncology fellowship training in 2020. He is board certified in general pediatrics by the American Board of Pediatrics. Dr. Shakeel completed his undergraduate education at the University of Florida and later his medical education at the University…
Phone: 832-822-4242

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Nurse Coordinator

Phone: 832-822-4867

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Patient Navigator for the Passport for Care

Ellen Shohet is a Clinical Nurse Specialist and Pediatric Nurse Practitioner interested in long-term survivorship outcomes of pediatric cancer patients and is involved in the Long-Term Survivor Program. In addition to her activities at Texas Children’s Hospital in the Texas Medical Center, Ellen…

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