Mark P. Cain, MD, FAAP

Dr. Cain graduated from medical school at Oregon Health Sciences University in 1987.  He completed his residency in Urology at Albany Medical Center, followed by a two-year fellowship in Pediatric Urology at the Mayo Clinic. 

He was a faculty member at Georgetown University for two years, then spent the next 23 years at Riley Hospital for Children and the Indiana University Department of Urology.  He served as the Robert Garrett Professor of Urology and Chief of Pediatric Urology until moving to Seattle where he was Associate Surgeon in Chief, Director of Regional Surgical Services and Director of Surgical Ambulatory Care for Seattle Children’s Hospital from 2019-2023. 

His primary clinical interests are surgical reconstruction of congenital anomalies of the genitalia, complex lower urinary tract reconstruction, management of prenatal urologic abnormalities and surgical management of urinary tract obstruction. Dr. Cain has published nearly 300 articles and book chapters and lectured internationally regarding various topics in pediatric urology, but with a focus on both long-term and patient-centered outcomes of urologic reconstruction. 

Dr. Cain is a trustee on the American Board of Urology. He serves as the liaison for the examination committee and chair for pediatric urology specialization. Dr. Cain is president elect for the ABU in 2025.  He is a past chair for the Section on Urology of the American Academy of Pediatrics, and the Society for Fetal Urology. 

Dr. Cain is a native of the Pacific Northwest, growing up in Willamette Valley’s Sherwood, Oregon. He is married to Charla Cain, has three married adult children and two grandchildren.