Dr. Ron Simpson is an orthopedic and general surgeon at Princeton-Plainsboro Teaching Hospital, and is also on the Board of Directors. In Control, Dr. Simpson is the surgeon whose patient went mute after routine surgery on the knee. In Babies & Bathwater, Dr. Simpson is the doctor who initially stands up for House when Vogler points out what misconduct has engaged in, until Vogler points out that all the misconduct he listed only occurred in the last few months. In Sex Kills, Dr. Simpson is one of the people on the transplant committee who refuse to give Henry Errington a heart.