Dr. Corbyons specializes in pediatric urology in the Johns Hopkins All Children’s Hospital Department of Surgey. She earned her medical degree from the University of Florida College of Medicine, where she also completed her internship and residency. Dr. Corbyons then completed a fellowship at Cincinnati Children’s Hospital Medical Center. Dr. Corbyons is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Undescended Testicle, Testicular Torsion, Hypospadias, and Posterior Urethral Valves.

Dr. Botta specializes in pediatric urology in the Johns Hopkins All Children’s Hospital Department of Surgery. He earned his medical degree from the University of Tennessee College of Medicine. Dr. Botta trained at Medical College of Georgia and completed a fellowship in urology at the University of California, San Francisco. Dr. Botta is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Hypospadias, Undescended Testicle, Prune Belly Syndrome, and Hydrocele.

Dr. Polsky specializes in pediatric urology in the Johns Hopkins All Children’s Hospital Department of Surgery. He earned his medical degree from the University of Kentucky College of Medicine, where he also completed his internship and residency. Dr. Polsky then completed a fellowship in pediatric urology at Children’s Hospital of Pittsburgh, University of Pittsburgh Medical Center. Additionally, Dr. Polsky is a clinical associate professor of urology and pediatrics for the University of South Florida. Dr. Polsky is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Testicular Torsion, Undescended Testicle, Hypospadias, Hydrocele, and Orchiectomy.

Matthew Fine is an Urologist in Coral Springs, Florida. Dr. Fine is rated as a Distinguished provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Posterior Urethral Valves, Hydronephrosis, Bilateral Hydronephrosis, Ureteroscopy, and Prostatectomy. Dr. Fine is currently accepting new patients.

Dr. Ballesteros specializes in pediatric urology in the Johns Hopkins All Children’s Hospital Department of Surgery. She earned her medical degree from Meharry Medical College in Nashville, Tennessee. She completed an internship in general surgery and a residency in urology from the University of Louisville. Dr. Ballesteros then completed a pediatric urology fellowship from Nicklaus Children’s Hospital in Miami. She also has a certification of fellowship in da Vinci® Surgery in pediatric urology. Dr. Ballesteros is rated as an Experienced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Testicular Torsion, Undescended Testicle, Hydrocele, Hypospadias, and Orchiectomy.

Dr. Alexander is a diagnostic radiologist at Johns Hopkins All Children’s. She sees patients on the hospital’s St. Petersburg, Florida, campus. She joined the medical staff in 2025. She was previously a radiologist at Boston Children’s Hospital. Dr. Alexander earned her medical degree from the University of Kansas School of Medicine in Wichita. She completed a diagnostic radiology residency at the University of Missouri in Kansas City. She then completed a diagnostic pediatric radiology fellowship followed by a pediatric musculoskeletal radiology fellowship at Boston Children’s Hospital. Dr. Alexander is rated as an Experienced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Scoliosis, Osteochondritis Dissecans, Knock Knees, and Caffey Disease.

Thomas Verhage is a Pediatric Radiologist and a Radiologist in Orlando, Florida. Dr. Verhage has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Short Stature (Growth Disorders), Scoliosis, Familial Short Stature (FSS), and Idiopathic Short Stature (ISS).

Dr. Rodriguez specializes in pediatric nephrology in the Johns Hopkins All Children's Department of Pediatric Medicine. She is an assistant professor of pediatrics in the University of South Florida Morsani College of Medicine. Her clinical interests include caring for children with advanced chronic kidney disease, including those who are dialysis dependent. Her primary research interests relate to quality initiatives in pediatric nephrology including implementation of a stewardship program on nephrotoxic drugs. Dr. Rodriguez earned her medical degree from the University of Chicago Pritzker School of Medicine. She completed a pediatric residency and fellowship in pediatric nephrology at Lucile Packard Children’s Hospital at Stanford. Dr. Rodriguez is rated as an Experienced provider by MediFind in the treatment of Posterior Urethral Valves. Her top area of expertise is Posterior Urethral Valves.

Rafael Gosalbez is an Urologist in Miami, Florida. Dr. Gosalbez is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Hypospadias, Varicocele, Undescended Testicle, and Epispadias. Dr. Gosalbez is currently accepting new patients.

Erica Mercer is an Urologist in Jacksonville, Florida. Dr. Mercer is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Diphallia, Testicular Torsion, Hydrocele, and Hypospadias. Dr. Mercer is currently accepting new patients.

Carlos Araya is a Pediatric Nephrologist and a Pediatrics provider in Orlando, Florida. Dr. Araya is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Nephrotic Syndrome, Feingold Syndrome, Horseshoe Kidney, and Liddle Syndrome. Dr. Araya is currently accepting new patients.

Andrew Labbie is an Urologist in Miami, Florida. Dr. Labbie is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Hypospadias, Varicocele, Undescended Testicle, Epispadias, and Ureteral Reconstruction. Dr. Labbie is currently accepting new patients.

Aura Arenas-Morales is a Pediatric Nephrologist and a Pediatrics provider in Orlando, Florida. Dr. Arenas-Morales is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Horseshoe Kidney, Henoch-Schonlein Purpura, Feingold Syndrome, and Glomerulonephritis. Dr. Arenas-Morales is currently accepting new patients.

Miguel Castellan is an Urologist in Miami, Florida. Dr. Castellan is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Hypospadias, Testicular Torsion, Varicocele, Endoscopy, and Ureteral Reconstruction. Dr. Castellan is currently accepting new patients.

Jonathan Melquist is an Urologist in Jacksonville, Florida. Dr. Melquist is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Bladder Cancer, Muscle Invasive Bladder Cancer, Chromophobe Renal Cell Carcinoma, Nephrectomy, and Reconstructive Urology Surgery. Dr. Melquist is currently accepting new patients.

Vaka Sigurjonsdottir is a Pediatric Nephrologist and a Pediatrics provider in Miami, Florida. Dr. Sigurjonsdottir is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Posterior Urethral Valves and Kidney Transplant. Dr. Sigurjonsdottir is currently accepting new patients.

Androniki Kanaroglou is an Urologist in Boyton Beach, Florida. Dr. Kanaroglou is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Hypospadias, Testicular Torsion, Undescended Testicle, and Hydrocele. Dr. Kanaroglou is currently accepting new patients.

Preeya Mistry is an Urologist in Jacksonville, Florida. Dr. Mistry is rated as an Advanced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Diphallia, Undescended Testicle, Testicular Torsion, and Hypospadias. Dr. Mistry is currently accepting new patients.

Pamela Ellsworth is an Urologist in Orlando, Florida. Dr. Ellsworth is rated as an Experienced provider by MediFind in the treatment of Posterior Urethral Valves. Her top areas of expertise are Urachal Cyst, Undescended Testicle, Testicular Torsion, Lithotripsy, and Ureteroscopy. Dr. Ellsworth is currently accepting new patients.

Jeffery Johnson is a Pediatric Nephrologist and a Pediatrics provider in Orlando, Florida. Dr. Johnson is rated as an Experienced provider by MediFind in the treatment of Posterior Urethral Valves. His top areas of expertise are Posterior Urethral Valves, Feingold Syndrome, Congenital Nephrotic Syndrome, and Nephrotic Syndrome. Dr. Johnson is currently accepting new patients.