An accomplished pediatric surgeon, Dr. Troy Reyna was one of the first physicians to introduce minimally invasive surgery for children. The first laparoscopic cholecystectomy (gallbladder removal) and first laparoscopic Nissen fundoplication were both performed by Dr. Reyna. He is also one of a only a few surgeons in the region that perform minimally invasive pectus excavatum surgery, also known as the Nuss procedure. An advocate for innovation, Dr. Reyna embraces the latest advancements in surgical techniques and technology. Dr. Reyna’s clinical interests include hyperhidrosis (palmar), Hirschsprung’s disease, pectus excavatum, pectus carinatum, hernias, tumors and childhood cancers.
Dr. Reyna is a graduate of the United States Military Academy at West Point, New York where he majored in chemistry. He received his medical degree from Georgetown University Medical School, Washington, D.C. He completed his surgical internship at Walter Reed Army Medical Center, Washington, D.C. and his surgical residency at Tripler Army Medical Center, Honolulu, Hawaii. Dr. Reyna served his Pediatric Surgery fellowship at Columbus Children’s Hospital, Columbus, Ohio. Dr. Reyna retired from the U.S. Army as a full colonel after serving as a medical officer during his distinguished military career. He was stationed in Germany, Central America, and Iraq during Operation Desert Storm.
As a respected expert in the fields of pediatric surgery and extensive experience with trauma cases, Dr. Reyna serves on the faculty as an instructor of Advanced Trauma Life Support with the American College of Surgeons. He is a fellow with the American Academy of Pediatrics. Dr. Reyna is a certified diplomate of the American Board of Forensic Examiners. Dr. Reyna is board certified in pediatric surgery and general surgery by the American Board of Surgery. Dr. Reyna is fluent in German and Spanish.
Hyperhidrosis (palmar), Hirschsprung's disease, pectus excavatum, pectus carinatum, hernias, tumors and childhood cancers
CHOC Children’s Specialists – Pediatric Surgery
505 S Main St, Suite 225
Orange, CA 92868
CHOC Children’s Specialty Center – Newport Beach
500 Superior Ave, Suite 140
Newport Beach, CA 92663
Dr. Troy Reyna explains the signs and symptoms of Hirschsprung's disease and the surgical treatment that can be used to fix it.
Children and teens with hyperhidrosis have excessive sweating regardless of the environmental temperature and emotional factors.
Dr. Troy Renya explains if a baby is born with a lump or bump, when is it serious and discusses diagnosis and what treatment may be recommended.
Dr. Troy Renya, CHOC Children's, explains what a hernia is and how hernias in children are different from adult hernias.
Meet Dr Troy Reyna, pediatric surgeon at CHOC Children's, as he talks about what the appendix is and what the causes of appendicitis are.
“Parents will typically notice a bulge in the groin or abdominal wall, where there shouldn’t be one,” says CHOC pediatric surgeon Dr. Reyna. The areas around the groin and belly button are the two most common regions for hernias in babies and young children.