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Our Team

Our team works closely with other leading experts throughout Texas Children’s Hospital to optimize care of patients with bleeding and clotting disorders. These collaborative efforts include advanced interventional technologies to treat complicated cases of thrombosis and life-threatening bleeding.

Co-Directors

Dr. Rosa Diaz is a specialist in bleeding and clotting disorders at Texas Children's Cancer and Hematology Centers. Dr. Diaz received her medical degree from the University of Puerto Rico Medical School, followed by her residency at the Steven & Alexandra Cohen Children's Medical Center in New…
Phone: 832-822-4242

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Dr. Sarah Sartain is the co-director of the Hemostasis and Thrombosis Program at Texas Children’s Hospital. Her main focus lies in treating children with disorders of bleeding and clotting. She developed her interest in this field of hematology during her fellowship training at Texas Children’s…
Phone: 832-822-4362

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Hematology/Oncology

Viia Anderson is a board certified pediatric nurse practitioner at Texas Children's Cancer and Hematology Centers where she is a member of the Young Women's Bleeding Disorder Clinic and the Hemostasis and Thrombosis Program.  Board Eligibility/Certification 2019 - Present    Board Certified…
Phone: 832-822-2146

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Dr. Clay Cohen provides his clinical expertise in bleeding disorders to the Young Women with Bleeding Disorders Clinic. Heavy menstrual bleeding may be caused by an underlying bleeding disorder in up to 30% of young women with excessive menstrual bleeding. Accurate diagnosis is necessary to…
Phone: 832-822-4242

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Dr. Rosa Diaz is a specialist in bleeding and clotting disorders at Texas Children's Cancer and Hematology Centers. Dr. Diaz received her medical degree from the University of Puerto Rico Medical School, followed by her residency at the Steven & Alexandra Cohen Children's Medical Center in New…
Phone: 832-822-4242

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Dr. YoungNa Lee-Kim is Director of the Fellowship Program in Pediatric Hematology-Oncology at the Texas Children's Cancer and Hematology Center. She is a clinical member of the Hematology Center and the Hemostasis and Thrombosis team, and sees patients in the Hemophilia Treatment Center. Dr. Lee-…
Phone: 832-822-1510

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Dr. Sarah Sartain is the co-director of the Hemostasis and Thrombosis Program at Texas Children’s Hospital. Her main focus lies in treating children with disorders of bleeding and clotting. She developed her interest in this field of hematology during her fellowship training at Texas Children’s…
Phone: 832-822-4362

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Heather Soni is a pediatric nurse practitioner for the Hemophilia and Thrombosis Program at Texas Children’s Hematology Center. She specializes in the management of anticoagulation disorders. She is board certified by the Texas Board of Nursing and the Pediatric Nursing Certification Board.
Phone: 832-822-1541

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Genetic Counselor

Hannah Helber is a certified genetic counselor for the Hematology Center at Texas Children's Hospital. As a genetic counselor in the Hematology Clinic, she works to identify families at risk for inherited hematologic conditions. She provides education on genetics, as well as discussing options for…
Phone: 832-822-3054

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Transfusion Medicine

Research Interests: Dr. Hensch is a member of the Division of Transfusion Medicine and Coagulation.  Her primary research interests include developing evidence-based strategies for safe transfusion in the pediatric patient population.  She is also actively involved in several research projects…
Phone: 832-824-5850

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Dr. Hui specializes in transfusion medicine and coagulation. He covers the blood bank and coagulation services and serves as a consultant for the apheresis service. Dr. Hui's scope of clinical services is a direct reflection of his research interest in congenital and acquired bleeding disorders…
Phone: 832-824-5850

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Dr. Navaei is a board certified pediatric intensivist. He has a special interest in management of children requiring extra-corporeal life support technologies. He is also board certified in Transfusion Medicine and Coagulation and serves as a consultant for transfusion support and management of…
Phone: 832-824-5850

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Dr. Teruya has extensive experience and expertise in patients with bleeding and thrombosis, pheresis procedures, and blood component therapy. He was an adult hematologist in Japan, and trained in Clinical Pathology and Transfusion Medicine/Coagulation at Massachusetts General Hospital, Harvard…
Phone: 832-824-5850

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Gynecology

Oluyemisi A Adeyemi-Fowode, M.D., assistant professor in the Department of Obstetrics and Gynecology, Baylor College of Medicine, is board certified in Obstetrics and Gynecology. Dr. Adeyemi-Fowode earned her medical degree at the University of Wisconsin, Madison. She completed her residency in…
Phone: 832-822-2778

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Jennifer L. Bercaw-Pratt, MD, assistant professor in the Department of Obstetrics and Gynecology, is board certified in Obstetrics and Gynecology. Dr. Bercaw-Pratt earned her medical degree at Louisiana State University Health Science Center in Shreveport, LA. She completed her residency and…
Phone: 832-822-2778

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View News Articles: The best way to educate your daughter about contraception, according to experts 
Phone: 832-822-2778

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Since childhood I always knew I wanted to be a pediatric nurse. After witnessing a close family member battle ovarian cancer, I became more interested women’s healthcare. I chose to become a women’s health NP and focus on pediatric adolescent gynecology because it is a perfect combination of both…
Phone: : 832-822-3640

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