Research Interests. Dr. Witchel is rated as a Distinguished provider by MediFind in the treatment of Turner Syndrome. Her top areas of expertise are Mixed Gonadal Dysgenesis, Turner Syndrome, Mosaicism, Hormone Replacement Therapy (HRT), and Thyroidectomy.

Francis X. Schneck, MD, is a pediatric urologist and program director of the Pediatric Urology Fellowship Program at UPMC Children’s Hospital of Pittsburgh. He is also an associate professor of urology at the University of Pittsburgh School of Medicine. He earned his medical degree from the Georgetown University School of Medicine. He then completed a residency in Urology at the University of Pittsburgh School of Medicine and a pediatric urology fellowship at the Harvard Medical School and Children's Hospital. He joined UPMC upon completion of his fellowship. Dr. Schneck is the author of numerous articles and book chapters in the field of pediatric urology and is board certified by the American Board of Urology. View a list of Dr. Schneck's publications on PubMed. Are you already a patient of this provider and have a MyUPMC account? Log in to MyUPMC to schedule. Dr. Schneck is rated as an Advanced provider by MediFind in the treatment of Turner Syndrome. His top areas of expertise are Cloacal Exstrophy, UPJ Obstruction, Undescended Testicle, Orchiectomy, and Lithotripsy.

Dr. Michael C. Ost is a urologist who treats a wide array of urologic conditions in both adults and children. He is skilled in minimally invasive surgery, utilizing robotics, laparoscopy, and endourologic techniques. His areas of expertise include the treatment of kidney cancer, congenital renal anomalies, ureteral injuries and abnormalities, and complex stone disease. Dr. Ost received his medical degree from the Mount Sinai School of Medicine in New York City. He received subspecialty fellowship training in both endourology (Northwell Health System – New York) and pediatric urology (UPMC Children’s Hospital of Pittsburgh). He was the first urologist in the United States to receive such training to treat a wide spectrum of urologic diseases in a minimally invasive fashion in both adults and children. He is widely published and has lectured nationally and internationally on his areas of specialization. Dr. Ost also received his MBA from the Ross School of Business at the University of Michigan. In addition to his clinical practice as a professor of urology, Dr. Ost serves as Director of Pediatric Surgical Outreach at UPMC Children’s Hospital of Pittsburgh and Assistant Dean for Interprofessional Education and Technology at the University of Pittsburgh School of Medicine. Dr. Ost is rated as an Experienced provider by MediFind in the treatment of Turner Syndrome. His top areas of expertise are Anorchia, Ureterocele, UPJ Obstruction, Lithotripsy, and Ureteroscopy.

Emir Tas, MD, is a board-certified pediatric endocrinologist at the UPMC Children's Hospital of Pittsburgh and an Assistant Professor of Pediatrics at the University of Pittsburgh School of Medicine. He completed his pediatric residency training at the Children's Hospital of University of Illinois at Chicago and pediatric endocrinology fellowships at the UPMC Children's Hospital of Pittsburgh. Dr. Tas is rated as an Experienced provider by MediFind in the treatment of Turner Syndrome. His top areas of expertise are Obesity in Children, Type 1 Diabetes (T1D), Newborn Low Blood Sugar, and Non-Alcoholic Fatty Liver Disease.

Mahmoud Aarabi is a Medical Genetics provider in Pittsburgh, Pennsylvania. Dr. Aarabi is rated as an Experienced provider by MediFind in the treatment of Turner Syndrome. His top areas of expertise are Mixed Gonadal Dysgenesis, Mosaicism, Trisomy 13, and Chromosome 13q Duplication.

Kanthi Bangalore is a Pediatric Endocrinologist in Pittsburgh, Pennsylvania. Dr. Bangalore is rated as an Experienced provider by MediFind in the treatment of Turner Syndrome. Her top areas of expertise are Precocious Puberty, Intersex, Diabetic Ketoacidosis, and Isolated ACTH Deficiency.

Dennis Chang is a Pediatric Cardiologist and a Pediatrics provider in Pittsburgh, Pennsylvania. Dr. Chang is rated as an Experienced provider by MediFind in the treatment of Turner Syndrome. His top areas of expertise are Bicuspid Aortic Valve, Pulmonary Supravalvular Stenosis, Pulmonary Valve Stenosis, and Ventricular Septal Defects.

Laura Jean Olivieri, MD, is a board-certified Pediatric Cardiologist and the Director of Noninvasive Cardiac Imaging at Children's Hospital Pittsburgh, and an Associate Professor of Pediatrics at University of Pittsburgh. She graduated from University of Chicago Pritzker School of Medicine and completed her pediatric residency at Brown University in Providence, RI, where she also was invited to stay for a chief year. She completed her training in pediatric cardiology at Children's National Medical Center in Washington, DC following by a year in advanced cardiac imaging at the National Heart, Lung and Blood Institute specializing in cardiovascular magnetic resonance imaging. She is expert in transthoracic and transesophageal echocardiography, cardiac MRI and cardiac CT. She is also considered a leader in the field of 3-dimensional reconstruction of congenital heart defects from 3D imaging, and in adapting MRI methods to babies and children. She is most interested in improving image acquisition using MRI and echocardiographic in 3D printing of heart models and has compiled a successful grant portfolio to that end. She also serves as Principal Investigator for an R01 to investigate application of cardiac MRI and Interventional Cardiac Magnetic Resonance on the care of pediatric heart transplant patients. This is a 4.5 million dollar, 5-year contract aimed at using CMR to guide interventional cardiac catheterization procedures, using less sedation for diagnostic CMR procedures and to advance diagnostic CMR capabilities to use less invasive testing. Dr. Olivieri is rated as an Advanced provider by MediFind in the treatment of Turner Syndrome. Her top areas of expertise are Subpulmonary Stenosis, Coarctation of the Aorta, Tetralogy of Fallot, Heart Transplant, and Angioplasty.

Jadranka Popovic, MD, specializes in pediatrics and is board-certified in pediatrics and pediatric endocrinology by the American Board of Pediatrics. She practices at UPMC Children's Express Care - Monroeville and is affiliated with UPMC Children's Hospital of Pittsburgh and UPMC Magee-Womens Hospital. Dr. Popovic received her medical degree from the University of Zagreb School of Medicine and completed her residency at St. Luke's-Roosevelt Hospital Center, followed by a fellowship at Weill Cornell Medicine. Dr. Popovic is rated as an Experienced provider by MediFind in the treatment of Turner Syndrome. Her top areas of expertise are Short Stature (Growth Disorders), Precocious Puberty, Turner Syndrome, and Brachydactyly.