Our Team

Team approach to care

The board-certified pediatric radiologists and other physicians in the Department of Radiology are committed to the highest-quality imaging, which includes participating in a range of research to lead to more accurate and efficient methods. They are supported by a highly trained team of nurses, technologists and staff.

Our child-friendly environment helps put your child at ease. Dedicated child-life specialists help your child relax with special age-appropriate games and activities. When necessary, we can provide sedation or general anesthesia.

Radiologist-in-Chief and Chair of Texas Children’s Department of Radiology

Thierry A.G.M. Huisman, MD, PD, FICIS, FACR

Thierry A.G.M. Huisman is the Radiologist-in-Chief and Chairman, Department of Radiology at Texas Children’s Hospital. Prior to coming to Texas Children’s Hospital, Dr. Huisman served as Chairman of the Department of Imaging and Imaging Science at the Johns Hopkins Bayview Medical Center. In… read more

Phone: 832-824-7237

Vice Chair, Clinical Affairs

Marla B.K. Sammer, MD, MHA, FAAP

Dr. Sammer’s goal is to positively improve quality of care and outcomes for patients. As a pediatric imager, ensuring children have equal access to high quality medical imaging is paramount. To accomplish, Dr. Sammer emphasizes data driven processes to bring cutting edge technology into clinical… read more

Phone: 936-267-7400

Vice Chair, Quality and Safety

Nilesh K. Desai, MD

Dr. Desai is the Division Chief of Neuroradiology, Vice-Chief of Quality and Safety at Texas Children's Hospital. He is board-certified by the American Board of Radiology with Certificate of Added Qualification in Neuroradiology. He completed fellowships in both Neuroradiology and Pediatric… read more

Phone: 832-824-7237

Vice Chair, Research

Ananth V. Annapragada, PhD

Ananth Annapragada is Professor of Radiology and Obstetrics & Gynecology, Member of the Dan L. Duncan Comprehensive Cancer Center, and Director of Basic Research in the Edward B. Singleton Department of Pediatric Radiology at Texas Children's Hospital. Previously, he was the Robert Graham… read more

Phone: 832-824-0865

Vice Chair, Body Radiology and Cardiac Imaging

Prakash M. Masand, MD

Dr. Masand is the Division Chief of Body Radiology, Vice Chair, Body Radiology and Cardiac Imaging in the department of Radiology at Texas Children’s Hospital. Dr. Masand is board certified by the American Board of Radiology and has a certificate of added qualification in the field of Pediatric… read more

Phone: 832-824-7237

Division Chief, Body Radiology

Prakash M. Masand, MD

Phone: 832-824-7237

Division Chief, Community Radiology

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

Division Chief, Interventional Radiology

Amir Pezeshkmehr, MD

Dr. Pezeshkmehr is a board certified Interventional Radiologist at Texas Children’s Hospital and the Women’s Pavilion, and Clinical Assistant Professor of Radiology at Baylor College of Medicine. He was the director of the Pediatric Interventional Radiology at Arkansas Children’s Hospital prior to… read more

Phone: 832-824-7237

Division Chief, Neuroradiology

Nilesh K. Desai, MD

Phone: 832-824-7237

Faculty, Body Radiology Division

Eric S. Bih, MD

My goal is to provide well, comprehensive care for each child through individualized imaging evaluation. I perform general pediatric radiology service with special interest in body imaging. I also have an interest in resident and fellow education. Through collaboration with my colleagues, the… read more

Phone: 936-267-7400 (The Woodlands) | 832-824-7237 (Main Campus)

Marcos P. Ferreira Botelho, MD

My extensive training and practice in Diagnostic and Interventional Imaging, primarily directed towards children’s health has enabled me to think critically and look for the best tools for diagnosing childhood illnesses. I am happy and honored to serve the Houston and Texas Community, as well as… read more

Phone: 832-824-7237

Lynn S. Carlson, MD

Dr. Carlson is a pediatric radiologist at Texas Children’s Hospital and an Assistant Professor of Radiology at Baylor College of Medicine. She is board certified in diagnostic radiology by the American Board of Radiology with a Certificate of Added Qualification in Pediatric Radiology. She performs… read more

Phone: 832-824-7237

James E. Crowe, MD

Dr. Crowe is a clinical pediatric radiologist at Texas Children's Hospital and Associate Professor of Radiology at Baylor College of Medicine. Through the American Board of Radiology, he is a board-certified diplomate, with additional subspecialty certification (CAQ) in Pediatric Radiology. Dr.… read more

Phone: 832-824-7237

Matthew G. Ditzler, MD

Dr. Ditzler is board-certified in Diagnostic Radiology by the American Board of Radiology. His clinical and research interests include pediatric musculoskeletal imaging and interventions, body imaging, and nuclear radiology. He performs all aspects of pediatric radiology including multimodality… read more

Phone: 832-824-7237

Scott R. Dorfman, MD

Dr. Dorfman is a pediatric radiologist at Texas Children’s Hospital and Associate Professor of Radiology at Baylor College of Medicine and is board-certified in Diagnostic Radiology by the American Board of Radiology. He has been on staff at Texas Children’s since 1994 and formerly served as… read more

Phone: 832-824-7237

Brandon L. Fuqua, MD

I am board-certified in Diagnostic Radiology by the American Board of Radiology. I take great pride in being a part of a multi-disciplinary team with the goal to have a positive impact on the kids and their families. My clinical interests are in general pediatric radiology via various imaging… read more

Phone: 832-824-7237 (Main Campus) | 832-227-1200 (West Campus)

Christopher Gaffney, MD

Dr. Gaffney is a pediatric radiologist at Texas Children’s Hospital and Assistant Professor of Radiology at Baylor College of Medicine and is board-certified in Diagnostic Radiology by the American Board of Radiology. He performs all aspects of general pediatric radiology with a focus in solid… read more

Phone: 832-824-7237

Siddharth P. Jadhav, MD

I am board-certified in Diagnostic Radiology by the American Board of Radiology. My clinical and research interests include pediatric musculoskeletal, cardiac and cross-sectional body imaging. I perform all aspects of pediatric radiology including multimodality imaging and interventional… read more

Phone: 832-824-7237

J. Herman Kan, MD

Dr. Kan is the head of musculoskeletal imaging at Texas Children's Hospital and Professor of Radiology at Baylor College of Medicine. His clinical experience is based in pediatric radiology and he is board certified in diagnostic radiology with an additional subspecialty certification (CAQ) in… read more

Phone: 832-824-7237

Pamela Deaver Ketwaroo, MD

It is a privilege to be part of a multi-disciplinary team caring for children and their families. In that capacity, I strive to have a positive impact and improve patient outcomes in both the pre-natal and post-natal settings. My clinical and research interests include fetal imaging, congenital… read more

Phone: 832-824-7237

Ambereen Khan, MD

Dr. Khan is an abdominal radiologist serving the adult population with a specialized interest in obstetrics and gynecologic imaging. “What I love most about my job is collaborating with other clinicians and patients to deliver the best possible care,” she says. As a member of the Texas Children’s… read more

Phone: 832-824-7237

Steven J. Kraus, MD

As a staff academic pediatric radiologist, I am committed to provide the best care for the patients and families we serve in the safest manner possible and provide the best training to the training radiologists and other clinical trainees providing radiologic and clinical care of the future. In… read more

Phone: 832-824-7237

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

Prakash M. Masand, MD

Phone: 832-824-7237

Robert C. Orth, MD, MPH, PhD

Dr. Orth is a pediatric radiologist at Texas Children’s Hospital and an Associate Professor of Radiology at Baylor College of Medicine. He is board certified in Diagnostic Radiology by the American Board of Radiology with a Certificate of Added Qualification in Pediatric Radiology. Orth performs… read more

Phone: 832-824-7237

Alicia M. Roman-Colon, MD

Dr. Roman-Colon is a board certified radiologist by the American Board of Radiology with subspecialty certificate in Pediatric Imaging at Texas Children's Hospital. Her clinical interests are focused in Body Imaging, including general pediatrics. She serves as a committee member at the Texas… read more

Phone: 832-824-7237

Marla B.K. Sammer, MD, MHA, FAAP

Phone: 936-267-7400

Victor J. Seghers, MD, PhD

Phone: 832-824-7237

Jignesh N. Shah, MD

With more than a decade of experience in pediatric radiology, Dr. Shah is certified as a Diagnostic Radiologist by the American Board of Radiology, with a Certificate of Added Qualification in Pediatric Radiology. Prior to joining Texas Children’s, Dr. Shah served as an Assistant Professor and… 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

Ray Somcio, MD

Dr. Somcio is a pediatric radiologist at Texas Children’s Hospital and Assistant Professor of Radiology at Baylor College of Medicine. He completed his subspecialty training in Pediatric Radiology at Texas Children’s Hospital. Dr. Somcio has a special interest in resident and fellow education. … read more

Phone: 832-824-7237

Ashok Joseph Theruvath, MD

According to the Declaration of Geneva, my duty as a physician is to dedicate my life to the service of humanity and to put the health and well-being of my patients as my first consideration. My goal as a clinical radiologist is to provide excellent and compassionate patient care through careful… read more

Phone: 832-824-7237 (Main) | 832-227-1200 (West) | 936-267-7400 (Woodlands)

Faculty, Interventional Radiology Division

Alex Chau, MD

Dr. Chau is an Interventional Radiologist at Texas Children’s Hospital, West Campus and the Woodlands. Dr. Chau's non-clinical interests include spending time with family, hiking and swimming. Clinical Interests: Dr. Chau’s clinical interests include caring for both pediatric and adult… read more

Phone: 832-824-7237

Karen S. Chen, MD

I am board-certified in Radiology and Nuclear Medicine by the American Board of Radiology with ACGME-accredited fellowship training in Neuroradiology and CAST-accredited fellowship training in Endovascular Surgical Neuroradiology. I have additional fellowship training in Pediatric Endovascular… read more

Phone: 832-824-7237 (Main) | 832-227-1000 (IWest) | 936-267-5800 (The Woodlands)

Gregory C. Gardner, MD

Dr. Gardner is an interventional radiologist and pediatric radiologist in the Department of Pediatric Radiology at Texas Children’s Hospital. He is also a Clinical Assistant Professor Radiology at Baylor College of Medicine. His clinical experience is based in pediatric radiology and interventional… read more

Phone: 832-824-7237

Edward L. Gayou, MD, MPH

Having trained in both pediatric and adult interventional radiology, I offer patients minimally invasive therapies for vascular, oncologic, genitourinary, and hepatobiliary pathology. It is my goal to provide compassionate, patient-centered care from initial consultation through definitive… read more

Phone: 832-824-7237

Jonathan S. Gross, MD

Every patient is unique, and every family approaches medical decisions differently. I strive to understand the unique needs of every child and adult I treat and to provide the most effective and compassionate care for my patients. Clinical Interests: I provide the full spectrum of minimally… read more

Phone: 832-824-7237

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

Amir Pezeshkmehr, MD

Phone: 832-824-7237

Hasmukh J. Prajapati MD, DNB(India), DABR, FSIR

Dr. Hasmukh Prajapati is a Clinical Associate Professor Radiology at Baylor College of Medicine. Dr. Prajapati completed his last training in Pediatric Interventional radiology and Interventional Oncology from the Emory University Hospital in 2013. Dr. Prajapati is a board-certified diplomate of… read more

Phone: 832-824-7237

Faculty, Neuroradiology Division

Nilesh K. Desai, MD

Phone: 832-824-7237

John T. Freiling, MD

Dr. Freiling is a neuroradiologist at Texas Children’s Hospital and Clinical Assistant Professor of Radiology. His clinical experience is based in adult and pediatric neuroradiology. Dr. Freiling is board certified in diagnostic radiology by the American Board of Radiology. Clinical Interests… read more

Phone: 832-824-7237

Thierry A.G.M. Huisman, MD, PD, FICIS, FACR

Phone: 832-824-7237

Anna Illner, MD

Dr. Illner has been a practicing pediatric neuroradiologist at Texas Children's Hospital since October 2006. She is board certified in Diagnostic Radiology with additional subspecialty certification (CAQ) in Neuroradiology and is fellowship-trained in both neuroradiology and pediatric… read more

Phone: 832-824-7237

Stephen F. Kralik, MD

I believe in giving maximum effort to finding the correct answer on every patient’s imaging studies that I encounter on a daily basis and providing the best service to the clinicians who treat these patients. Clinical Interests: I am interested in all clinical areas of pediatric neuroradiology,… read more

Phone: 832-824-7237

Marcia K. Kukreja, MD

Dr. Kukreja is a Neuroradiologist at Texas Children's Hospital and Clinical Assistant Professor Radiology at Baylor College of Medicine. Her clinical experience is based in pediatric radiology and neuro radiology. Dr. Kukreja is a board certified diplomate of the American Board of Radiology with… read more

Phone: 832-824-7237

Karen K. Moeller, MD

Dr. Moeller is a Neuroradiologist at Texas Children’s Hospital. She is a board- certified diplomate of the American Board of Radiology with a Certificate of Additional Qualification in Neuroradiology. Clinical Interests: All areas of pediatric neuroradiology, including diseases that… read more

Phone: 832-824-7237

Rajan Patel, MD

Dr. Patel has been serving as a Neuroradiologist at Texas Children's Hospital and Associate Professor of Radiology at Baylor College of Medicine since December 2021. Dr. Patel is board-certified by the American Board of Radiology with Certificate of Added Qualification (CAQ) in Neuroradiology.… read more

Phone: 832-824-7237

Ronald A. Rauch, MD

Dr. Rauch has been a member of the medical staff at Texas Children's Hospital since 2005. His clinical interests involve all of neuroradiology but especially in the correlation of neurology and neurologic disease to the brain.Dr. Rauch serves as one of the neuroradiologists in the neuroradiology… read more

Phone: 832-824-7237

Huy D. (Brandon) Tran, MD

Dr. Tran is a clinical pediatric radiologist Department of Pediatric Radiology at Texas Children's Hospital, and is a Clinical Assistant Professor of Radiology at Baylor College of Medicine. Through the American Board of Radiology, he attained additional subspecialty certification (CAQ) in… read more

Phone: 832-824-7237

Program Director, Informatics

Andrew C. Sher, MD

Phone: 832-824-7237

Program Director, Residency & Fellowship Education

Nadia F. Mahmood, MD

Phone: 832-824-7237

Adjunct Faculty

Sherri Beth Birchansky, MD

Dr. Sherri Birchansky is a Pediatric Neuroradiologist, board certified in diagnostic radiology with additional subspecialty board certifications in neuroradiology and pediatric radiology. With a college bachelor degree in chemistry, graduating top in her class summa cum laude, she went on to… read more

Phone: 832-824-7237

Christopher Ian Cassady, MD

Dr. Cassady is a Clinical Associate Professor of Radiology at Baylor College of Medicine. Dr. Cassady is involved with all aspects of pediatric imaging, but his research interests lie particularly with MR imaging of the fetus. He currently serves on the Board of Directors for the Society of… read more

Phone: 832-824-7237

Robert Paul Guillerman, MD

Dr. Guillerman is board-certified in Diagnostic Radiology by the American Board of Radiology with a Certificate of Added Qualification in Pediatric Radiology. His clinical and research interests include pediatric chest, musculoskeletal, and tumor imaging, radiation risk assessment and dose… read more

Phone: 832-824-7237

Amy Mehollin-Ray, MD

My primary interests are resident and fellow education, fetal ultrasound and MR imaging, and pediatric ultrasound. In 2011, my work in education was recognized by the graduating radiology resident class at Baylor College of Medicine, who honored me with their Teacher of the Year award. My research… read more

Phone: 832-824-7237

Professor Emeriti

Taylor Chung, MD

Dr. Taylor Chung is a renowned expert in pediatric cardiac imaging. He served as Radiology Service Chief at Texas Children’s Hospital from 2004 – 2008 and was instrumental in building our pediatric cardiac imaging program and recruiting top talent. He currently serves as Associate Chief and is… read more

Bruce R. Parker, MD

Dr. Bruce Parker honorably retired after serving as Chief of Service from 1994 - 2004. Under Dr. Parker’s leadership, Texas Children’s Department of Radiology experienced exceptional growth and advancement in technologies. Dr. Parker led Texas Children’s to be pioneers and early adopters of PACS… read more

Alan E. Schlesinger, MD

Dr. Schlesinger has been a member of the medical staff of Texas Children's Hospital since 1995. His clinical interests include general body imaging in children. He has a special interest in skeletal dysplasias. Academically, Dr. Schlesinger has published over 60 articlesof scientific literature… read more

Translational Imaging Group (TIGr)

Ananth V. Annapragada, PhD

Phone: 832-824-0865

Andrew A. Badachhape, PhD

My lab seeks to apply foundational science principles in novel contrast mechanisms, machine learning, and radiological science to solve some of the most pressing medical concerns of our time. Over the past decade, I have conducted clinical and preclinical imaging research to improve our… read more

Phone: 832-822-1225

Ketankumar B. Ghaghada, PhD

Dr. Ghaghada graduated from the University of Mumbai in 2000 with B.S. in Chemical Engineering. He moved to the United States and received his M.S. (Chemical Engineering) in 2003 from Cleveland State University where his research focused on mathematical modeling and optimization of targeted nano-… read more

Phone: 832-824-0865

Zbigniew A. Starosolski, PhD

Dr. Zbigniew Starosolski was born in Poland. He graduated and received his Master Degree in Science at Silesian University of Technology in 1999, and got a positon of Research Assistant. He did his PhD in the field of Control Theory at the Faculty of Automatic Control of Silesian University of… read more

Phone: 832-824-0865

Eric A. Tanifum, PhD

Dr. Tanifum received BS and MS degrees in Chemistry from the Universities of Buea and Dschang in Cameroon respectively. He moved to the US in 2001, where he earned a Ph.D. in Organic Chemistry from Utah State University in 2006. Upon graduation, he conducted postdoctoral research in bioorganic… read more

Phone: 832-824-0865

Medical Physics

Zili David Chu, PhD

My goal is to apply my expertise in MR imaging to meet patient’s needs. Clinical Interests: My clinical interests are: 1) to improve clinical protocols with available technologies; 2) to identify various issues associated with the MR system, to perform first line troubleshooting and maintenance,… read more

Phone: 832-TC4-RADS (832-824-7237) | 832-822-1866

Carly Hansen, MS, DABR

Carly is board certified by the American Board of Radiology in Diagnostic Medical Physics. She collaborates with radiology team members to assure the safe and effective delivery of radiation to achieve desired diagnostic results. Clinical Interests: Her clinical and research interests include… read more

Phone: 832-822-0409

R. Benton Pahlka, PhD, DABR

Working together with our radiologists, technologists, and other experts, my philosophy is centered on patient safety by providing the best imaging possible at the lowest radiation dose consistent with the specific diagnostic task. I strive to develop imaging protocols that are tailored to the… read more

Phone: 832-822-1540

Luning Wang, PhD

As a MR physicist, my goal is to help provide world class imaging for our patients. I enjoy bridging the gap between cutting edge MRI research and the clinic. Clinical Interests: My clinical interests include neurologic, cardiac and musculoskeletal imaging. My goals are 1) to provide clinical… read more

Phone: 832-822-5347

Radiation Safety

John "Jay" W. Poston, PhD

Dr. Poston is the Radiation Safety Officer (RSO) at Texas Children’s Hospital and also serves as the Laser Safety Officer. He is board certified by the American Academy of Health Physics and the Board of Certified Safety Professionals and is licensed to practice Medical Health Physics by the Texas… read more

Phone: 832-824-7237

Services

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Our Team

Radiologist-in-Chief and Chair of Texas Children’s Department of Radiology

Vice Chair, Clinical Affairs

Vice Chair, Quality and Safety

Vice Chair, Research

Vice Chair, Body Radiology and Cardiac Imaging

Division Chief, Body Radiology

Division Chief, Community Radiology

Division Chief, Interventional Radiology

Division Chief, Neuroradiology

Faculty, Body Radiology Division

Faculty, Interventional Radiology Division

Faculty, Neuroradiology Division

Program Director, Informatics

Program Director, Residency & Fellowship Education

Adjunct Faculty

Professor Emeriti

Translational Imaging Group (TIGr)

Medical Physics

Radiation Safety