Our Team

Receiving care at a dedicated pediatric hospital allows our patients to have access to a comprehensive spectrum of pediatric specialists whenever needed.

The Pediatric Thyroid Program at Texas Children’s Hospital is staffed by a dedicated team of pediatric endocrinologists, pediatric surgeons, pediatric otolaryngologists/head and neck surgeons, pediatric anesthesiologists, pediatric radiologists, interventional pediatric radiologists, pediatric pathologist, cytopathologists, pediatric oncologists, nurses and patient care coordinators.

Directors

Ioanna D. Athanassaki, MD
My clinical research interests focus on pediatric thyroid disease and the genetic factors which are associated with cancer, hyperthyroidism, and congenital hypothyroidism in infants and children. I am also investigating the safety of Radioactive iodine treatment in children with Graves disease.
Phone: 832-822-3670
Amy L. Dimachkieh, MD, FAAP
I am interested in general pediatric otolaryngology with a subspecialty focus in tumors of the head and neck, benign and malignant masses, and thyroid disease.  My goal is to deliver high quality care through a multidisciplinary team to create healing and supportive inpatient and outpatient… read more
Phone: 832-822-3250 (Main) | 281-469-4688 (CyFair)
Priya Mahajan, MD
Dr. Priya Mahajan is the Associate Director of the Solid Tumor Programs, Director of the Thyroid Cancer Program and Associate Director of the Pediatric Hematology/Oncology Fellowship Program at Texas Children's Cancer and Hematology Center. She is an associate professor of pediatrics at Baylor… read more
Phone: 832-824-4752

Endocrinology

Ioanna D. Athanassaki, MD
My clinical research interests focus on pediatric thyroid disease and the genetic factors which are associated with cancer, hyperthyroidism, and congenital hypothyroidism in infants and children. I am also investigating the safety of Radioactive iodine treatment in children with Graves disease.
Phone: 832-822-3670

Hematology-Oncology

Priya Mahajan, MD
Dr. Priya Mahajan is the Associate Director of the Solid Tumor Programs, Director of the Thyroid Cancer Program and Associate Director of the Pediatric Hematology/Oncology Fellowship Program at Texas Children's Cancer and Hematology Center. She is an associate professor of pediatrics at Baylor… read more
Phone: 832-824-4752
Madelyn A. Oakley, CPNP
Madelyn A. Oakley, APRN, MSN, CPNP
Madelyn Oakley is a nurse practitioner for the Cancer and Hematology Center at Texas Children's Hospital. Her primary focus is on treating patients with solid tumors, including liver tumors, neuroblastoma, rare tumors, soft tissue sarcoma, thyroid cancer and bone tumors. Board Certifications… read more
Phone: 832-822-2146
Nino C. Rainusso, MD
Nino C. Rainusso, MD
Dr. Nino Rainusso, is an assistant professor of pediatrics – hematology/oncology at Baylor College of Medicine and Texas Children’s Cancer and Hematology Center. He is a board-certified pediatric hematologist-oncologist specializing in the care of children with sarcomas. Dr. Rainusso obtained his… read more
Phone: 832-822-4242
Valeria R. Smith, MD
Dr. Valeria Smith is a physician at Texas Children's Cancer and Hematology Center. She is board certified by the American Board of Pediatrics and a specialist in pediatric hematology/oncology.
Phone: 832-824-0931
Dr. Rajkumar Venkatramani
Rajkumar Venkatramani, MD, MS, MBA
Dr. Rajkumar Venkatramani is the section chief of oncology and the director of clinical business operations for Texas Children's Cancer and Hematology Center. He is a professor of pediatrics at Baylor College of Medicine and, is a board-certified pediatric hematologist-oncologist who is… read more
Phone: 832-824-7955

Interventional Radiology

Jose Alberto Hernandez, MD
Dr. Hernandez has been a member of the Medical Staff of Texas Children's Hospital since 2006. His clinical interests include vascular and non-vascular procedures performed with imaging guidance. He has a special interest in GI, GU and vascular access procedures. Academically, Dr. Hernandez has… read more
Phone: 832-824-7237
Kamlesh U. Kukreja, MD
Dr. Kukreja is Clinical Associate Professor Radiology at Baylor College of Medicine. His clinical experience is based in pediatric radiology and interventional radiology. Dr. Kukreja is a board certified diplomate of the American Board of Radiology with Certificate of Additional Qualification (CAQ… read more
Phone: 832-824-7237

Otolaryngology/Head and Neck Surgery

danielchelius
Daniel C. Chelius, MD
In addition to general pediatric otolaryngology, my primary interest is in pediatric head and neck surgery including acquired and congenital head and neck masses, head and neck cancers, and thyroid disease as well as in the head and neck sequellae of immunocompromise and cancer treatment. My goal… read more
Phone: 832-822-3250 (Main) | 281-469-4688 (CyFair)
Amy L. Dimachkieh, MD, FAAP
I am interested in general pediatric otolaryngology with a subspecialty focus in tumors of the head and neck, benign and malignant masses, and thyroid disease.  My goal is to deliver high quality care through a multidisciplinary team to create healing and supportive inpatient and outpatient… read more
Phone: 832-822-3250 (Main) | 281-469-4688 (CyFair)

Pathology

Norma Maria Quintanilla, MD
Dr. Quintanilla is in a research collaboration with the allergy and immunology clinic to study the seasonal variation ofeosinophilic esophagitis. She is board certified in pediatric pathology and cytopathology.
Phone: 832-824-2250

Radiology

Nadia F. Mahmood, MD
Dr. Mahmood is a board certified radiologist by the American Board of Radiology.  Her clinical and research interests include lymphoma, neuroblastoma and oncology-related imaging.  She also serves as one of four radiologists in the division of nuclear imaging with a focus on Positron Emission… read more
Phone: 832-824-7237
Victor J. Seghers, MD, PhD
Dr. Seghers is the Division Chief of Community Radiology at Texas Children's Hospital and Professor of Radiology at Baylor College of Medicine. He serves as the Chief of Service for the Radiology Departments at Texas Children’s-West Campus and Texas Children’s-The Woodlands hospitals, two full… read more
Phone: 832-824-7237
Andrew C. Sher, MD
Dr. Sher is a pediatric radiologist at Texas Children’s. He is board certified in Diagnostic Radiology with additional subspecialty certification (CAQ) in Nuclear Medicine. He performs all aspects of pediatric radiology with an emphasis both on nuclear medicine and body imaging. His primary… read more
Phone: 832-824-7237

Surgery

Jed G. Nuchtern, MD
Dr. Jed Nuchtern is a pediatric surgeon specializing in pediatric surgical oncology. In addition to performing general neonatal and pediatric surgery, he is a member of the Surgical Oncology Team at Texas Children's Hospital and is actively involved with taking care of patients with neuroblastoma,… read more
Phone: 832-822-2778
Adam M. Vogel, MD
Dr. Adam Vogel was born and raised in Hauppauge, New York. As a child and teenager he had frequent visits to his family pediatrician which, combined with an interested in biologic sciences evolved into a desire to pursue a career in medicine and to help sick children. His passion for problem… read more
Phone: 832-822-2778

Research and Outcomes

Nakada Gusman, RN

Program Coordinator

Monica Y. Garcia, RN