All of our orthopedic surgeons have completed a fellowship in pediatric orthopedics — an additional year of specialty training after completion of an orthopedic residency.
Peter Newton, M.D., Division Chief; Director, Scoliosis Service; Voluntary Associate Clinical Professor of Orthopedic Surgery, UC San Diego
Scott J. Mubarak, M.D., Clinical Director; Professor of Clinical Orthopedic Surgery, UC San Diego
Henry Chambers, M.D., Director, Cerebral Palsy Center; Co-Director, 360 Sports Medicine; Professor of Clinical Orthopedic Surgery, UC San Diego
Eric W. Edmonds, M.D., Director of Orthopedic Research; Co-Director, 360 Sports Medicine; Assistant Clinical Professor of Orthopedic Surgery, UC San Diego
Andrew T. Pennock, M.D., Staff Orthopedic Surgeon; Assistant Clinical Professor of Orthopedic Surgery, UC San Diego
Maya Pring, M.D., Staff Orthopedic Surgeon; Associate Clinical Professor of Orthopedic Surgery, UC San Diego
Salil V. Upasani, M.D., Staff Orthopedic Surgeon, Assistant Clinical Professor of Orthopedic Surgery, UC San Diego
C. Douglas Wallace, M.D., Director, Orthopedic Trauma; Associate Clinical Professor of Orthopedic Surgery, UC San Diego
Dennis Wenger, M.D., Co-Director, International Center for Pediatric and Adolescent Hip Disorders; Director of Orthopedic Training Program; Voluntary Clinical Professor of Orthopedic Surgery, UC San Diego
Burt Yaszay, M.D., Staff Orthopedic Surgeon; Voluntary Assistant Clinical Professor of Orthopedic Surgery, UC San Diego
Physician Assistants and Nurse Practitioners
Amanda Asaro, M.P.A.S., PA-C
Amanda joined our team in 2006. She earned both a bachelor of health science and a master of physician assistant studies from Duquesne University in Pittsburgh. Amanda then completed a post-graduate fellowship through the Illinois Bone and Join Institute in Chicago, where she had a year of specialty training in orthopedics at a level 1 trauma center. After completing the fellowship, she accepted a position at Shriner’s Hospital for Children in Philadelphia, where she was part of the pediatric upper extremity team. At our Center, Amanda is also a part of the upper extremity team, working closely with Dr. C. Douglas Wallace. She also works in the Clubfoot Clinic. Amanda enjoys spending time with her family and running half marathons.
Linh Darnell, PA-C
Linh joined our team in 2001. She graduated with a bachelor of science degree from San Diego State University in 1995 and earned another bachelor’s degree from Charles R. Drew University of Medicine and Science in 1997. Later that year, she became a board-certified physician assistant. After practicing in family medicine/women’s health, Linh pursued her passion of orthopedics and accepted a position with Scripps Clinic’s Department of Orthopedics. She then joined our team as the division’s first physician assistant, and in 2008, was appointed manager of all mid-level providers. She also provides clinical care, specializing in upper extremity, trauma and spine abnormalities.
Allison Dickinson, PA-C
Allison joined our team in 2003. She graduated from the University of Georgia with a bachelor of exercise and sport science (B.S.Ed.) and earned her master of health sciences from the University of South Alabama in 2003. She is a board-certified physician assistant and works closely with Dr. Henry Chambers, specializing in both sports medicine and cerebral palsy. Allison has been an athlete and coach at both the youth and intercollegiate levels. She also maintains a special interest in facilitating an active lifestyle for people with cerebral palsy.
Emily joined our team for the second time in 2014. She originally joined the group in 2009, having two years of experience working in pediatric orthopedics. Emily received her bachelor’s of science degree in exercise and sport sciences from the University of Florida in 2002 and her master’s of medical science in physician assistant studies from Wake Forest University School of Medicine. She has a passion for working with children of all ages. In her free time, Emily enjoys spending time with her family, exercising and spending time outdoors.
Katie Fields, CPNP-AC
Katie joined our team in 2011. She earned her bachelor of science in nursing from Villanova University in 2005 and went on to work in a high-level pediatric intensive care unit for four years. She then earned her master’s degree in 2010 from the University of Pennsylvania. Katie is a board-certified pediatric acute care nurse practitioner and works closely with Dr. Scott Mubarak. Her primary areas of focus are trauma, infant hips, and lower extremity disorders. Katie enjoys spending time with her family and friends, traveling and being outdoors.
Lynn Manheim, M.S.N., CPNP
Lynn joined our team in 2002. She graduated from the Medical University of South Carolina with a bachelor of science in nursing and earned her master of science in nursing and pediatric nurse practitioner degree from the University of San Diego. Lynn is a board-certified pediatric nurse practitioner and works closely with Dr. Eric Edmonds, specializing in pediatric and adolescent sports medicine. She has special expertise in fracture care and also conducts her own independent sports injury clinics.
Chrissy Paik, B.S., M.P.A.P., PA-C
Chrissy joined our team in 2011. She graduated from the University of Southern California in 2005 with a bachelor’s of science degree and from the USC Physician Assistant Program in 2011. After becoming a certified physician assistant, Chrissy returned to her home town of San Diego and worked at a physical therapy clinic, where she honed her medical skills, particularly in sports rehabilitation. Chrissy now works as part of our hip team, treating patients with conditions including developmental hip dysplasia, femoroacetabular impingement, spastic hip subluxation, slipped capital femoral epiphysis, and Legg-Calve-Perthes disease. She also works in clinics treating fractures and sports injuries. Chrissy enjoys spending time with her family and friends, playing beach volleyball and competing in sprint triathlons.
Sunny Park, CPNP
Sunny joined our team in January 2011. After graduating from the University of California, Berkeley with a bachelor’s degree in psychology, she earned a bachelor’s in nursing from Johns Hopkins University, followed by a master’s in nursing in 2006. Following graduation, Sunny joined the Pediatric Orthopedics Division of Johns Hopkins, where she gained experience in treating sports injuries, scoliosis, and hip conditions. Sunny is a board-certified pediatric nurse practitioner who works closely with Dr. Dennis Wenger. She also has a special interest in sports injuries. Sunny enjoys playing sports, traveling, spending time with family and friends, and exploring San Diego.
Kelly Pretorius, CPNP
Kelly joined our team in June 2012. She graduated from the University of Texas at Austin with a bachelor’s in nursing in 2007 and then earned her primary and acute care pediatric nurse practitioner certification and master’s in nursing in 2010 from Duke University. Kelly’s career at Rady Children’s Hospital-San Diego began in the Division of Emergency Medicine, where she worked for a year and a half, gaining experience in the acute treatment of orthopedic injuries. Prior to her work as a pediatric nurse practitioner, Kelly was a pediatric critical care nurse at Duke Children’s. Kelly enjoys volunteering, traveling, visiting her friends and family in Texas, spending time with family and friends in San Diego, and exploring San Diego.
Raquel Sanchez, B.S., PA-C
Raquel joined our team in 2002. She graduated with a bachelor of science in biology from the University of California, Irvine in 1993. In 1997, she graduated from the Charles R. Drew University of Medicine and Science Physician Assistant Program in Los Angeles and became a board-certified physician assistant. Since joining our team, Raquel has worked mainly with Dr. Maya Pring, who specializes in hip disorders, cerebral palsy, spinal defects, limb deformities, sports and trauma. She also works closely with Dr. Henry Chambers, who specializes in sports medicine and cerebral palsy. She enjoys spending time with family and friends, photography, travel, sports and going on medical missions
MaryLou Scott, M.S.N., CPNP
MaryLou joined our team in 1998 as the division’s first nurse practitioner. She has been instrumental in advancing the role of the midlevel provider in our busy practice. MaryLou earned a bachelor’s in nursing from Arizona State University, followed by a master’s in nursing, and a pediatric nurse practitioner degree, from the University of San Diego. At our Center, she specializes in pediatric spine and hip disorders. She also runs her own independent back pain clinic, acute fracture care clinic and ingrown toenail clinic. Along with being a nurse practitioner, MaryLou is a commander in the U.S. Naval Reserves and is currently stationed at North Island. She is actively involved in orthopedic research and won best presentation at the 2010 Association of Military Surgeons of the U.S. for our team’s research on the use of midlevel providers for partial toenail ablations for ingrown toenails outcomes of care.
Phil Stearns, M.S.N., CPNP
Phil joined our team in August of 2000. He graduated from Iona College with a bachelor of science in biology. He received his master of science in nursing from Yale School of Nursing in May of 2000. Phil is a board-certified pediatric nurse practitioner and works closely with Dr. Andrew Pennock, specializing in pediatric fracture care. Phil also has a special interest in pediatric hip and foot disorders.