Dr. Tiffany N. Castillo is an orthopaedic surgeon specializing in adult hip and knee reconstruction. She serves as the Chair of the Department of Orthopaedic Surgery at Santa Clara Valley Medical Center and is a Clinical Assistant Professor affiliated with Stanford Department of Orthopaedic Surgery. Dr. Castillo has contributed to research on surgical determinants for hip fractures, industry payments' impact on joint arthroplasty outcomes, and the effects of preoperative opioid use on hip arthroplasty outcomes.