Catherine M. Cosentino, M.D.and Jeff Hoehner, M.D. are the only Board Certified Pediatric Surgeons in Southern Arizona. Richard Ashley, M.D. and Derrick Johnston, M.D. provide specialized Pediatric Urology services and are the only Board Certified/Eligible Pediatric Urologists in Southern Arizona. They provide 24 hour, 7 day a week coverage for Tucson and the surrounding areas. As Pediatric Surgeons and Pediatric Urologists, they operate exclusively on children and are committed to providing excellent care to the children of Tucson and Southern Arizona. Their experience in general, thoracic, urologic and minimally invasive surgery allow them to provide the most complete and thoughtful care of children from birth through the teenage years. Children are not small adults. The Academy of Pediatrics recognizes that pediatric surgeons have the best experience and the specialized training that allows them to provide the best surgical care of children.