Our Team

Chief

Dr. Rona Sonabend's philosophy towards healthcare is combining the science of medicine with the art of care delivery in a patient-centered quality driven manner. Dr. Sonabend’s clinical interests include caring for children with neuro-endocrine dysfunctions with a specialized interest in… read more

Phone: 832-822-3670

Clinic Physicians

Rebecca S. Aguirre, MD, PhD

Rebecca Schneider Aguirre's is committed to providing compassionate, individualized care and believes in creating an environment where she can guide her patients through the ins-and-outs of their situations, creating a genuine collaborative and trusting partnership. As a physician-scientist, she… read more

Phone: 832-822-3670

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

Fida F. Bacha, MD

I am a board certified pediatric endocrinology and diabetes specialist. I strive to provide great clinical care for children with hormone disorders and with diabetes and to help them and their families to acquire the knowledge and skills necessary to successfully manage different aspects of the… read more

Phone: 832-822-3670

Andrea Balazs, MD

My interest includes clinical practice in growth disorders, puberty, Di-George Syndrome, congenital adrenal hyperplasia (CAH), calcium disorders and pediatric diabetes.

Phone: 832-822-3670

Nidhi Bansal, MBBS, MPH

My aim is to provide compassionate, high-quality, evidence based care using a team driven collaborative approach. While treating patients, I like to partner not only with other members of the medical team but also with the patient’s family. I believe that building trust, connection and partnership… read more

Phone: 832-822-3670

Jennifer J. Bell, MD

Patient care requires a team approach. Communication and coordination of care with patients, parents, school systems, community support groups, and medical providers is the key to providing quality care for the patient. Clinical research with institutions and industry along with national… read more

Phone: 832-822-1370

Selorm Dei-Tutu, MD, MPH

I am interested in providing expert and compassionate care to children with endocrine disorders and diabetes and their families. I am particularly interested in extending this care to children with endocrinopathies in resource-limited countries who for several reasons may not have access to all the… read more

Phone: 832-822-3670

Daniel DeSalvo, MD

I joined the TCH Section of Pediatric Diabetes and Endocrinology in July 2015 after completing a postdoctoral fellowship at Stanford University. I serve as the Type 1 Diabetes Clinic Lead, Director of Strategic Collaboration for the Texas Children’s Diabetes & Endocrine Care Center, and TCH… read more

Phone: 832-822-3670 (Main) | 281-282-1900 (Clear Lake)

Shannon French, MD

My clinical interests include Type 1 Diabetes, Cystic Fibrosis Related Diabetes, and Turner Syndrome. My fellowship research focused on insulin resistance in children with cystic fibrosis prior to the development of cystic fibrosis-related diabetes and the role of circulating cytokines in this… read more

Phone: 832-822-3670

Olivia Ginnard, DO, FAAP

Dr. Ginnard is a physician-scientist who specializes in the field of endocrinology to better impact patient lives. Specifically, her research interests involve the development of a comprehensive understanding of how alterations in vitamin D pathways lead to the pathologic disease states of obesity… read more

Phone: 832-822-3670

Sheila K. Gunn, MD

I strive to provide the highest quality pediatric endocrine care in a caring manner. Clinical Interests: Pediatric diabetes, Congenital adrenal hyperplasia, Thyroid disease in children, Turner Syndrome, Growth disorders in children, Type 2 diabetes DSD, Disorders of Sexual Differentiation (DSD)

Phone: 832-822-3670 (Main) | 281-494-7010 (Sugar Land)

Kelly A. Hicks, MD

I am a clinical pediatric endocrinologist with outpatient clinics available at Texas Children's West Campus. I enjoy caring for infants, children, and adolescents with diabetes as well as general endocrine concerns to include growth, puberty, thyroid, adrenal, pituitary, and calcium disorders. I… read more

Phone: 832-227-1370

Vincent Horne, MD, MS

I joined the faculty in Pediatric Diabetes and Endocrinology at Baylor College of Medicine / Texas Children’s Hospital in July 2017. I am particularly interested the care of children with late endocrine effects of cancer therapy and neuroendocrine disease, with particular interest in hypothalamic… read more

Phone: 832-822-3670

Alfonso Hoyos-Martinez, MD, FAAP

I am a pediatric endocrinologist with a diverse background and training. I am committed to providing high-quality care to patients and families with endocrine diseases, and teaching future generations of physicians. I have a great interest in the areas of neuroendocrinology, thyroid, endocrine… read more

Phone: 832-822-3670 (Main) | 832-822-3780 (Direct)

Kathy Hwu, MD, MEd

My primary interest is care of the underserved. I am also interested in the clinical care with a focus on Type 1 and Type 2 diabetes and associated issues such as PCOS. In addition, I serve as the Fellowship Program Director and have a strong interest in the education of medical students,… read more

Phone: 281-282-1900

Lefkothea P. Karaviti, MD, PhD

My portfolio includes clinical practice in sexual development disorders, puberty, congenital adrenal hyperplasia (CAH), growth, and pediatric diabetes. Additionally, I established one of the first gender medicine multidisciplinary teams to care for children born with disorders of sexual development… read more

Phone: 832-822-3670

Grace Kim, MD

My clinical interests focus on providing quality education and compassionate patient centered care to improve health outcomes for children and adolescents with diabetes and endocrine conditions. As co-lead of the Education Diabetes Care Process Team, a multidisciplinary quality improvement team, we… read more

Phone: 936-267-7500

Elizabeth Kubota-Mishra, MS, DO

Dr. Kubota-Mishra is a pediatric endocrinologist with a strong focus on managing type 1 diabetes in children. She is a passionate advocate for improving access to diabetes technology, striving to ensure all children receive optimal care. She also brings her personal experience of being a diabetes… read more

Phone: 936-267-7500

Yuezhen Lynda Lin, MD, MS

I am an advocate for your child’s health and wellbeing. I believe that every child should be provided with the care and support they need to achieve their highest potential. I strive to provide the most comprehensive and compassionate care to every child I encounter and truly consider a privilege… read more

Phone: 832-822-3670 (Main) | 832-227-1370 (West)

Sarah Kippenbrock Lyons, MD

My clinical and research interests focus on improving the medical care and health outcomes of children, adolescents, and emerging adults with diabetes and endocrine conditions, particularly during their transition from pediatric to adult healthcare. I am a med-peds endocrinologist with residency… read more

Phone: 832-822-3670

Bonnie M. McCann-Crosby, MD, BS

My aim is to provide high quality, evidence-based, and compassionate care for children with diabetes and endocrine conditions. I love working with families to create a patient-centered plan of care. Clinical Interests: Type 1 diabetes, thyroid disorders, growth and puberty disorders, nonclassical… read more

Phone: 936-267-7500

Siripoom V. McKay, MD

My primary interest is in type 2 diabetes in children. I am the Medical Director and the Principle Investigator for the Baylor site of TODAY (Treatment Options in Type 2 Diabetes in Adolescents and Youth). TODAY is an NIH-sponsored, multicenter trial that will determine which of three treatment… read more

Phone: 832-822-3670

Aikaterini (Katerina) Nella, MD

I joined the faculty of Baylor College of Medicine/Texas Children’s Hospital in 2018. I previously served as an Assistant Professor of Pediatrics, Division of Pediatric Endocrinology at the University of Texas Medical Branch. I highly value the privilege of serving my patients. I strive to provide… read more

Phone: 832-822-3670 (Main) | 281-494-7010 (Sugar Land)

Tracy Patel, MD

My clinical interests include:management of type 1 and type 2 diabetes, thyroid disease, disorders of growth and puberty, Turner syndrome, and polycystic ovary syndrome. I strive to empower families to be active in the care and management of their children.

Phone: 832-227-1370

Maria J. Redondo, MD, PhD, MPH

My philosophy of care is to provide each child or adolescent with the most advanced medical care, in an individualized and comprehensive manner, to ensure their health and wellbeing. I promote shared decision making with the youth, in an age-appropriate manner, and their family. My clinical… read more

Phone: 832-822-3670

Stephanie R. Sisley, MD

Dr. Stephanie Sisley is a pediatric endocrinologist and the Medical Director of the Center for Genetic Disorders of Obesity in Texas Children’s Hospital. She is highly motivated to increase medical knowledge on the causes and outcomes of obesity and diabetes and translate it into more clinically… read more

Phone: 832-822-3670

Rona Y. Sonabend, MD

Phone: 832-822-3670

Ryan Stewart, MD

As a pediatric endocrinologist at Texas Children’s, Dr. Stewart is an expert in the endocrine system, which controls hormones in the body. He provides personalized diagnosis, treatment and follow-up care for a wide range of conditions affecting children with endocrine disorders, including diabetes … read more

Phone: 737-220-8200

Mustafa Tosur, MD, FAAP

I am a board-certified pediatric endocrinologist and physician-scientist focused on pediatric diabetes. I aim to provide state-of-the-art patient care while contributing to the advancement of the field and teaching young generations. I am dedicated to offering quality care to all of my patients… read more

Phone: 832-822-3670 (Main) | 281-494-7010 (Sugar Land)

Serife Uysal, MD

My philosophy is to work closely with my patients, their families as well as other specialists and team members to provide comprehensive and coordinated care for my patients through adulthood. I strive to achieve best care possible using the most evidenced based knowledge and experience to treat… read more

Phone: 936-267-7500

Nurse Practitioners

Lauren E. Culbreth, MPAS, PA-C

Lauren Culbreth is a physician assistant specializing in pediatric diabetes care with an emphasis on patient and family-centered healing. Her lifelong passion for the intricacies of pediatric endocrinology has driven her to make a meaningful difference in the lives of children and adolescents… read more

Phone: 832-822-3670

Sarah Renee Kelly, DNP, APRN, CNP

As a provider who has lived with type 1 diabetes since childhood, my goal is to speak to patients and families from a place of understanding and personal experience and to serve as a positive role model for children learning to accept and manage chronic conditions. Whether newly diagnosed, already… read more

Phone: 832-822-3670 (Main) | 281-282-1900 (Clear Lake)

Cynthia Sanders, APRN, MS, CPNP-PC

I believe in family centered care where patient and families actively participate and make decisions in the child’s care. Clinical Interests: Education for Type 1 Diabetes Research Interests: Aspects of diabetes management Improvement in complication rates

Phone: 936-267-7500 (The Woodlands) | 281-469-4688 (CyFair)

Mili Vakharia, APRN, FNP-C

I am a family nurse practitioner with interest in chronic medical conditions. I strive in providing evidenced based care and shared health decisions involving both patient and family members to deliver successful clinical outcomes. It is also my privilege and utmost duty to provide quality care and… read more

Phone: 832-227-1370

Suzanne Wheat, APRN, MSN/MPH, FNP-C

Phone: 832-822-3670 (Main) | 281-494-7010 (Sugar Land)

Victoria B. Wright, MSN, APRN, CPNP-PC, BC-ADM, CDCES

I am a pediatric nurse practitioner and I was diagnosed with type 1 diabetes at 3 years old. My experience as patient with type 1 diabetes started a lifelong passion for learning all about the endocrine system and for offering compassionate, holistic care to pediatric patients with type 1 and type… read more

Phone: 832-822-3670 (Main) | 281-282-1900 (Clear Lake)

Fellows

Gabriel Castrano Heredia, MD

I believe in prevention and healthy lifestyle to stay healthy. I enjoy running, soccer and football, love snowboarding and spending time with family and friends. Clinical Interests: I love glucose physiology, obesity, pre-diabetes, and diabetes including bariatric surgery. Research Interests… read more

Phone: 832-822-3670

Guido Alarcon Mantilla, MD

Phone: 832-822-3670

Manal Tantoush, MD

Phone: 832-822-3670

Amruta Thakkar, MD

Phone: 832-822-3670

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Our Team

Chief

Clinic Physicians

Nurse Practitioners

Fellows